Contact device with a configurable supplementary supply contact

Description

[0001] The invention relates to a system for realizing a light fixture, a contact device, a light fixture, a use of the system and a method for realizing a light fixture.

[0002] Generic systems are used to create elongated luminaires suitable for a wide range of applications, meeting diverse requirements. For example, these luminaires are used for lighting in production facilities, warehouses, offices, schools, and supermarkets, where they increasingly provide infrastructure for power supply and data transmission. To enable their use in as many of these applications as possible, these luminaires are modular in design, allowing their longitudinal extension—that is, their length along a specific axis—to be adapted to each application.Systems of this type can be assembled at their intended installation site to create luminaires of any length and, in particular, can be joined with further luminaires of this type at their longitudinal ends to form a luminaire arrangement of any desired design. Systems of this type are each constructed such that they comprise a support rail extending lengthwise, in particular over at least 700 mm and preferably over no more than 5000 mm, a contact device which in some embodiments is designed as a conductor rail, and a mounting body to which usually a functional element of the luminaire and, in some cases, an optical element, such as at least one lens, at least one aperture, and / or at least one reflector, is attached.

[0003] The support rail is usually designed to partially enclose an interior space transversely and vertically, such that the support rail is open at one vertical end, with the resulting opening, pointing in a vertical direction, being bounded by two support rail side walls, particularly along its entire longitudinal extent. A vertical end is understood to be an end perpendicular to the longitudinal direction and perpendicular to a transverse direction, which is also perpendicular to the longitudinal direction. The support rail side walls extend from a support rail base along the vertical direction. The support rail base runs in the transverse direction and connects the two support rail side walls, so that the support rail has a substantially U-shaped cross-section perpendicular to the longitudinal direction.The contact device is arranged on the mounting rail within the interior of the mounting rail, particularly on the base of the mounting rail. The contact device has several contact holders spaced apart in the transverse direction, each for receiving a single contact. It is also possible, in principle, to form several, and in particular all, contact holders together as an integral component, for example, by overmolding during the manufacturing of the contact device using an injection molding process. Preferably, the contacts are pluggable or inserted into the contact holders. In embodiments where the contact device is designed as a conductor rail, the contacts are designed as conductor wires that are arranged in channels of the conductor rail extending along its longitudinal direction and are accessible from one side. The conductor wires run along the longitudinal direction, preferably over the entire longitudinal extent of the conductor rail.The busbar thus has several channels that form the transversely spaced contact holders, which are designed as conductor wire holders to accommodate a single conductor wire each, defining its contact position. In many applications, it can be advantageous to design the contact device as a busbar, since the conductor wires arranged in the busbar can be electrically contacted in any position along most of its longitudinal extent, whereas in other designs of a contact device, the contacts can only be electrically contacted in a specific position along the longitudinal direction, which depends on the usually fixed position of the contact device in the mounting rail. Therefore, when using a busbar, it is possible to position the mounting body in different positions along its longitudinal direction.In a conductor rail, for example, each channel, by virtue of its contour, forms exactly one conductor wire holder, so that exactly one conductor wire can be inserted into each channel and held by the conductor wire holder formed by the channel's contour. The channel, or rather its conductor wire holder, uniquely defines the position of the conductor wire running longitudinally with respect to the transverse direction, so that two conductor wires held in two different conductor wire holders cannot overlap in the transverse direction. Conductor rails are also known in which at least some of the channels form two conductor wire holders, for example, one conductor wire holder on each channel wall.In an arrangement of conductor wires in each of the two conductor wire holders formed by the same channel, the two conductor wires are spaced apart from each other in the transverse direction and held against opposite channel walls. A channel is generally formed by two channel walls extending vertically and a channel base extending transversely, the channel base connecting the channel walls. In some embodiments, the contact holders are arranged in two planes offset from each other, particularly alternating along the transverse direction, so that the contacts are held in the contact holders in two planes offset from each other, particularly alternating along the transverse direction.When the contact device is configured as a conductor rail, the conductor rail preferably comprises a first group of channels whose conductor wire holders are arranged in a first vertical position, and a second group of channels whose conductor wire holders are arranged in a second position, vertically offset from the first. When the conductor wires are inserted into the conductor wire holders, the conductor wires inserted into the channels of the first group are vertically offset from the conductor wires inserted into the channels of the second group. The contacts are electrically conductive, i.e., designed as electrical conductors, over at least a substantial portion of their volume and serve to transmit electrical supply and / or data signals, for example, via the DALI protocol.Various contact devices are known, in whose contact holders a different number of contacts are arranged. Typically, at least five, and in particular at least seven, contacts are arranged in the contact device, with each contact receptacle being assigned one of the contacts, so that the contact receptacle forms exactly one contact holder in which the respective contact is arranged. If the contact device is designed as a conductor rail, then at least five, and in particular at least seven, conductor wires are arranged in the conductor rail, with each conductor wire being arranged in one of the channels, and in particular only one conductor wire being arranged in each channel. The mounting body is usually arranged on the mounting rail in such a way that it closes the interior at the end where the mounting rail is open, with respect to the vertical direction.One or more functional elements are arranged on the mounting body, for example, light sources, ballasts, sensors (e.g., a camera and / or a motion sensor), and / or communication modules (e.g., a WLAN, Bluetooth, and / or ZigBee communication interface). The functional element is preferably designed and configured to be operated by means of the supply and / or data signals transmitted via the contacts. Therefore, systems of this type have a contact device that is arranged on the mounting body and electrically connected to it for use with the functional element, and which electrically connects the functional element to the contacts in an operating state of the system.The contact device is designed to be moved into the interior enclosed by the mounting rail and, in particular by means of the mounting body, inserted into the contact assembly, so that each electrical contact of the contact device, designed as a contact finger, comes into electrically conductive contact with one of the contacts arranged on the contact assembly. The contact device is thus designed to transmit electrical data and / or supply signals applied to the contacts to the respective electrical functional element during operation.

[0004] In systems of this type, several contacts are often configured as phase conductors, each carrying a phase as a supply signal during operation. The phase conductors are arranged transversely side by side. If the contact device is configured as a busbar, the phase conductors, each formed by a conductor wire, are arranged transversely side by side on the busbar, particularly in different channels. Furthermore, in systems of this type, another contact is typically configured as a neutral conductor. In a normal operating state, which represents the system's standard state, the electrical functional element is supplied by the potential existing between the neutral conductor and one of the phase conductors, so that the supply current flowing when an electrical functional element is powered flows through the neutral conductor and the corresponding phase conductor.The contact device has a contact finger designed as a phase contact finger, which is configured to make electrically conductive contact with a selected phase conductor during operation. For example, when using multiple electrical functional elements, each electrically connected to several of the contacts arranged on the contact device via a contact device, a first contact device can have its phase contact finger in contact with a first phase conductor, and a second contact device can have its phase contact finger in contact with a second phase conductor during operation. That is, during the system's operating state, the respective electrical functional elements are electrically connected to different phase conductors via the contact devices.This allows, for example, an independent electrical supply of the electrical functional elements with electrical supply signals via the different phase conductors.

[0005] It has proven disadvantageous that independent electrical supply via multiple phase conductors requires not only a larger number of contacts in the contact device, but also differently designed contact devices for the correspondingly different electrical contact with the different phase conductors. Therefore, solutions are known in which the phase contact finger is designed as a phase selection contact finger and its contact section can be arranged in various phase selection positions offset from one another along the transverse direction. Each of these phase selection positions is assigned to a different contact designed as a phase conductor, so that in the operating state of a luminaire implemented by the system, the phase selection contact finger's contact section rests against the contact assigned to the respective phase selection position.Such contact devices are used, for example, in switchable luminaires of this type, in whose contact device five contacts are arranged, wherein the first of the contacts is designed as a neutral conductor, the second as a protective earth (PE) conductor, and the remaining three as phase conductors. If it is desired, for example, to enable dimming of the luminaire of this type, to provide electrical control of the electrical functional elements, the luminaire includes two further contacts arranged in the contact device, which are designed as data conductors onto which data signals can be applied in the operating state, whereby the electrical functional elements can be controlled by means of the data conductors by means of corresponding contact fingers of the contact device, which are electrically conductive in the operating state in contact with the respective contacts.In many applications, it is also necessary to provide a supplementary power supply, for example, in the form of an emergency lighting function, a data supply function, and / or a load-distributing power supply function. This allows, for example, the luminaire to operate at least partially for a certain period of time in the event of a power outage, for instance, by providing electrical supply signals via a supplementary energy source, such as an energy storage device, particularly a rechargeable battery, and / or a generator. To implement such a supplementary power supply, it is necessary to provide additional contacts. It may even be necessary to provide a supplementary power supply via different contacts, so it must be ensured that corresponding contact fingers, designed as supplementary power supply contact fingers, can be connected to different contacts in an electrically conductive system.Each of the aforementioned exemplary applications increases the complexity of the design of the contact device and the contact assembly. Furthermore, applications are known in which one or more functional elements mounted on a mounting body are supplied with a different phase, in particular where the phases are phase-shifted, which also requires different contacts.

[0006] In order to offer systems that can be used for as many of the aforementioned applications as possible, it has so far been necessary either to arrange a maximum number of contacts in the contact device that would be required for a conceivably complex application and to provide a contact device designed accordingly for this most complex application, or to provide differently designed contact devices and matching contact devices with a number of contacts arranged in the contact device adapted to the respective application for a large number of applications, or to provide several different contact devices on a mounting body that are compatible with the same contact device and provide different supplies from the at least one functional element provided on the mounting body.The aforementioned is particularly problematic when the contact device is designed as a conductor rail, since the channels of the conductor rail, in which the contacts designed as conductor wires run, typically extend over the entire longitudinal extent of the conductor rail, making it impossible to arrange different conductor wires side by side at the same transverse height along the longitudinal direction. The aforementioned possibilities therefore provide only insufficient modularity for the generic systems. DE 10 2017 125 214 A1 discloses a system for realizing a luminaire, comprising a mounting rail, a mounting body, a contact device, and a contact assembly, wherein the contact assembly has several contact fingers that are slidably held in a housing of the contact assembly, one of the contact fingers being designed as a phase selection contact finger.EP 3 477 793 B1 discloses a contact device with a housing in which several contact fingers and their respective associated contact holders are arranged, wherein the contact fingers are spring-loaded by means of a spring device.

[0007] The object of the present invention is to provide a system for realizing a light fixture, a contact device, a use of a system and / or a method for realizing a light fixture which eliminates at least one of the aforementioned disadvantages, at least partially.

[0008] As a solution to the problem underlying the invention, the invention proposes a system with features according to claim 1. The system according to the invention for realizing a luminaire comprises a longitudinally elongated support rail and a contact device. For the purposes of the present invention, an object is considered elongated if its extent in the elongated direction is at least twice, and in particular at least five times, any extent perpendicular thereto. The contact device has several contact holders spaced apart from one another in the transverse direction on an access side pointing in a vertical direction. In particular, the access side of the contact device has a vertical orientation.In a system operating as intended, and correspondingly also in a system-implemented luminaire operating as intended, at least some of the contact holders each contain a contact and thereby fix its position along the transverse direction, i.e., its contact position. The contacts contained in the contact holders can be contacted from the access side by contact sections of a contact device of the system engaging the contacts contained in the contact holders from the access side. The system further comprises a longitudinally elongated mounting body on which an electrical functional element is arranged, which is designed in particular as a lighting module, for example as at least one LED arranged on a circuit board.Furthermore, a contact device is arranged on the mounting body, the contact device comprising a housing, which is in particular made of an electrically insulating material, in which several contact fingers, each having a contact section, are arranged. The housing has at least one base plate, on the surface of which facing the access side the contact fingers are arranged. In particular, the housing also has at least one housing wall section that extends from the base plate along the vertical direction to the access side and overlaps the contact fingers along the vertical direction. Preferably, the housing surrounds all of the contact fingers at least with respect to the longitudinal and transverse directions.In particular, the contact fingers are arranged in the housing such that their contact sections project at least partially beyond a vertical dimension of the housing, especially on a side of the contact device facing the access side. The contact sections of the contact fingers are offset from one another along the transverse direction. In particular, all contact sections are arranged at the same height with respect to the vertical direction. Each contact finger is assigned to exactly one connection device of the electrical functional element. The connection devices of the electrical functional element are separate from one another, so that each connection device serves to connect a specific electronic access point of the functional element. A connection device can, for example, be formed by one or more terminals of the functional element.To supply power to the electrical functional element, each contact finger is electrically connected to its corresponding terminal of the electrical functional element via a connecting cable. In both an operating state of the luminaire and a system operating state in which the functional element is supplied via the contacts located on the contact device, each contact finger is electrically connected to its respective terminal. In an operating state of the luminaire, the contacts of the contact device are connected to a building supply line. For this purpose, a feed-in device is typically provided on the mounting rail, which is connected to each of the contacts located on the contact device and connects that contact to its respective building supply line.The supply line can be, for example, a building-side phase conductor, a building-side neutral conductor, a building-side protective earth conductor, a building-side supplementary supply line, or a building-side data line. In every operating state of the system, the mounting body and the contact device are attached to the mounting rail, in particular by positive locking, and in particular detachably. Preferably, the contact fingers of the contact device project into the contact device. In a functional state of the system, orIn an operating state of a luminaire implemented by the system, in which the contacts are received in their contact positions in the contact holders in the channels and in which the system is in its operating state, each contact finger is electrically conductively connected with its contact section to exactly one of the contacts, wherein the connection device assigned to the respective contact finger is electrically conductively connected via the contact finger to the contact to which the contact finger is electrically conductively connected. One of the contact fingers is designed as a phase selection contact finger. At least one further, and in particular at least two further, of the contact fingers are designed as supplementary supply contact fingers.The phase selection contact finger can be arranged within the housing in at least two, in particular at least three, and in particular exactly three, different positions, with its contact section positioned in a phase selection position uniquely assigned to its respective position. Each of the phase selection positions is arranged at the transverse height of exactly one of the contact positions assigned to the respective phase selection position. Preferably, the phase selection contact finger can only be arranged in the housing in such positions that its contact section is located in exactly one of the phase selection positions. In the intended operating state, the contact section of the phase selection contact finger is thus aligned in the transverse direction with one of the contact positions assigned to the respective phase selection position in each phase selection position.In various operating states, where each of the three contact holders corresponding to the three contact positions contains a contact and is thus held fixed in its respective position, the contact section of the phase selector contact finger rests against exactly one of these contacts, depending on the selected position of the contact finger. By choosing the position of the phase selector contact finger within the housing, it is therefore possible to select which of the contacts the contact section of the phase selector contact finger rests against.

[0009] In a first operating state, the contact section of the phase selection contact finger is arranged in a first of the phase selection positions, and the contact section of at least one supplementary supply contact finger, in particular the contact sections of all supplementary supply contact fingers, is each arranged at a transverse height of a contact position located outside the contact position assigned to the phase selection positions. A defined number of different contact positions are specified on the contact device by the contact holders. At least two, in particular at least three, of these contact positions are assigned to the phase selection positions of the contact section of the phase selection contact finger.

[0010] In the first operating state, one of the contact positions is assigned to the contact section of at least one supplementary power supply contact finger; in particular, two further contact positions are assigned to the contact sections of at least two supplementary power supply contact fingers in the first operating state. The at least one supplementary power supply contact finger can be arranged in at least two different positions within the housing, with its contact section positioned in a supplementary contact position uniquely assigned to its respective position.When providing multiple supplementary supply contact fingers, at least one of the supplementary supply contact fingers can be arranged in at least two different positions within the housing, with its contact section positioned in a supplementary contact position uniquely assigned to its respective position. This applies in particular to all supplementary supply contact fingers. Each of the supplementary contact positions is arranged at the transverse height of exactly one contact position defined by the contact device and is thus transversely aligned with it. In a second operating state of the system according to the invention, the contact section of the phase selection contact finger is arranged in a second of the phase selection positions.Furthermore, in the second operating state, the first supplementary supply contact finger is arranged in a different position than in the first operating state and blocks the phase selector contact finger from being positioned in the position corresponding to the first phase selector position. In one embodiment, this is achieved by arranging the first supplementary supply contact finger, in particular its contact section, at the transverse height of the first phase selector position in the second operating state. Thus, in the second operating state, the first supplementary supply contact finger, and in particular its contact section, is located at the transverse height where the contact section of the phase selector contact finger is located in the first operating state.In contrast, the contact section of the phase selection contact finger is in a different phase selection position in the second operating state than in the first operating state. Generally, the arrangement of the first supplementary supply contact finger in the second operating state ensures that the phase selection contact finger cannot be positioned in the housing in such a way that its contact section is located at the first phase selection position. Thus, the first supplementary supply contact finger is positioned differently relative to the housing in the first operating state than in the second operating state. While its positioning in the first operating state allows the phase selection contact finger to be positioned with its contact section in the first phase selection position, the positioning of the first supplementary supply contact finger in the second operating state prevents such a positioning of the phase selection contact finger.The arrangement of the phase selection contact finger in its position corresponding to the first phase selection position can be blocked, for example, by the fact that the first supplementary supply contact finger has an outer contour corresponding to an outer contour of the phase selection contact finger, such that the arrangement of the first supplementary supply contact finger in its position intended for the second operating state, due to the interaction of the outer contours, prevents the phase selection contact finger from being arranged in its position corresponding to the first phase selection position. For example, the blocking can also be ensured by a movable or...A movable locking element is provided in the housing, which, by arranging the first supplementary supply contact finger in its position intended for the second operating state, prevents the phase selector contact finger from being arranged in its position corresponding to the first phase selector position, for example by corresponding design of the outer contours of the locking element, phase selector contact finger, and supplementary supply contact finger. The blocking can also be achieved, for example, by arranging at least one section of the supplementary supply contact finger, for example, its contact section, in the second operating state in a region of the housing where the phase selector contact finger is located in the first operating state.This area is thus occupied by the first supplementary supply contact finger and therefore blocks the arrangement of the phase selection contact finger in its position corresponding to the first phase selection position. In one embodiment, the first supplementary supply contact finger can only be moved within the housing together with the second supplementary supply contact finger, so that it can always assume different positions in the housing together with the second supplementary supply contact finger. It can be provided, as explained in more detail below, that in the second operating state, the second supplementary supply contact finger blocks an arrangement of the phase selection contact finger in its position corresponding to a third of the phase selection positions. The blocking can be provided as described for the first supplementary supply contact finger.In one embodiment, the contact section of the first supplementary supply contact finger is arranged in the same supplementary contact position (i.e., the same position with respect to the transverse direction) in the first operating state as in the second operating state. In another embodiment, each different position of the supplementary supply contact finger in the housing is assigned a different supplementary contact position. In any case, each of the different positions of the supplementary supply contact finger is uniquely assigned exactly one supplementary contact position, such that the position of the supplementary supply contact finger defines the position of its contact section. The supplementary contact position is defined at least by a predetermined position with respect to the transverse direction, in particular with respect to the transverse and vertical directions, and especially with respect to any direction.

[0011] The system according to the invention offers significant advantages. Depending on the requirements or configuration of the contact device with contacts, the contact assembly can be selectively brought into an operating state in which phase selection is either enabled or blocked. The blocking of phase selection can relate to the selection of the first phase selection position or to the selection of the first and third phase selection positions. In a particularly preferred embodiment, a phase selection contact finger is provided whose contact sections can be moved into different phase selection positions, and at least one supplementary supply contact finger can be arranged both at the transverse level of one of the phase selection positions and in another position outside the transverse extent of each phase selection position.With the system according to the invention, a first functional state, and thus a first operating state of a luminaire, can be realized in the first operating state, in which a specific contact, held in one of the contact holders on the contact device, is connected to a building-side phase conductor and is connected via the contact device to a phase connection device of the electrical functional element. In the second operating state of the system, a second functional state, and thus a second operating state of a luminaire, can be realized, in which this specific contact is connected to an auxiliary supply line and is connected via the first auxiliary supply contact finger to an auxiliary supply connection device of the functional element. The auxiliary supply is particularly preferably an emergency lighting supply.so that an emergency lighting connection device of the functional element is supplied via the supplementary supply contact finger. Preferably, at least two, and in particular exactly two, supplementary supply contact fingers are provided for connection to two emergency lighting connection devices of the functional element, whereby the functional element can be supplied by a supply circuit separate from the usual supply. In general, preferably two supplementary supply contact fingers are provided which, in a second functional state of the system, in which it is in the second operating state, are connected to two contacts which are connected to two building-side supplementary supply lines, in particular emergency lighting supply lines, wherein the phase selector contact finger is connected to a building-side phase supply line and a neutral conductor contact finger is connected to a building-side neutral conductor supply line.wherein the supplementary supply lines form a supplementary supply circuit that is independent of a supply circuit formed by the phase supply line and the neutral supply line, wherein, in particular, the supplementary supply circuit is protected by a different circuit breaker than the supply circuit. Generally, the at least one supplementary supply contact finger is configured to provide a supply to the functional element or to a further functional element that is independent of the phase selector contact finger. For example, the supplementary supply contact finger can ensure the supply to a further phase connection device of the functional element or to a further phase connection device of a further functional element. The invention particularly preferably relates to the use of an embodiment of a system according to the invention in a functional state,in which it is in the second operating state and a luminaire is implemented in an operating state, wherein the contact device is used as a multi-phase contact device, wherein the phase selector contact finger connects a phase connection device of the functional element to a building-side phase supply line which is connected to the contact to which the contact section of the phase selector contact finger rests, and wherein the first supplementary supply contact finger connects a first further phase connection device of the functional element or of a first further functional element to a first further building-side phase supply line which is connected to the contact to which the contact section of the first supplementary supply contact finger rests,and wherein, in particular, the second supplementary supply contact finger connects a second further phase connection device of the functional element or of a second or the first further functional element to a second further building-side phase supply line, which is connected to the contact to which the contact section of the second supplementary supply contact finger rests. In general, a data input of the functional element can also be supplied via the first supplementary supply contact finger and, in particular, via the second supplementary supply contact finger, for example, for controlling the functional element, for example, for dimming the functional element. The system according to the invention is thus characterized by a very high degree of versatility and therefore flexible applicability. This is because the system can be used both when a contact device with a small number of contacts is used,and with which, although no phase selection is provided, a supplementary power supply, in particular emergency lighting supply, is provided, as well as when a contact device with a larger number of contacts is used with which both phase selection and a supplementary power supply, in particular emergency lighting supply, are provided when connecting an electrical functional element. The inventors thereby depart from the commonly used approach of distinguishing between the transverse positions of supplementary contact fingers and the transverse positions of the phase selection contact finger possible within the framework of phase selection.In particular, it is important to distinguish between the transverse positions of the contact section of supplementary supply contact fingers and the phase selection positions to avoid incorrect connections in every possible operating state of the system. Rather, in particularly preferred embodiments, the invention provides a system in which, by deliberately arranging at least one, in particular both, of the supplementary supply contact fingers at the level of a phase selection position for the supplementary supply, especially emergency lighting supply, a supplementary supply contact finger can be connected to such a contact, which in other applications is designed as a phase conductor arranged on the contact device, which is in particular connected to a building-side phase line. The inventors have recognized thatthat by enabling the supplementary supply contact finger to be deliberately positioned at the transverse level of a phase selection position, incorrect contacting can still be avoided, and at the same time the system can be used under a large number of different operating conditions.

[0012] It is also generally preferred that the second supplementary supply contact finger be arranged in at least two different positions within the housing, with its contact section positioned in a supplementary contact position uniquely assigned to its respective position. Each supplementary supply contact finger is assigned exactly one supplementary contact position in every operating state, in which its contact section is located. Naturally, the supplementary contact positions of the two supplementary supply contact fingers differ from each other in that operating state or are transversely spaced apart. Preferably, each supplementary supply contact finger is assigned only those supplementary contact positions that are not identical to the supplementary contact positions assigned to the other supplementary supply contact finger.It is generally preferred that in the second operating state, the second supplementary supply contact finger is arranged in a different position than in the first operating state, wherein, due to its position in the second operating state, the second supplementary supply contact finger blocks the arrangement of the phase selector contact finger in its position corresponding to a third of the phase selector positions. This blocking can be provided as described above for the first supplementary supply contact finger with reference to the position of the phase selector contact finger corresponding to the first phase selector position.In the particularly preferred embodiment, in the first operating state, the first and second supplementary supply contact fingers are arranged such that the contact section of the phase selector contact finger can be moved from the first phase selector position, in which it is located in the first operating state, to the second and third phase selector positions without changing the positions of the supplementary supply contact fingers. In contrast, in the second operating state, the position of the contact section of the phase selector contact finger is fixed to the second phase selector position, since the supplementary supply contact finger(s), due to their position in the housing in the second operating state, prevents the phase selector contact finger from being arranged in the housing in which its contact section can assume the first or third phase selector position.

[0013] In the second operating state, it is generally preferred that the contact section of a second supplementary supply contact finger, and thus—if two supplementary supply contact fingers are provided—of the other of the two supplementary supply contact fingers, is also arranged at the transverse height of a phase selection position. Preferably, the contact sections of the supplementary supply contact fingers and the contact section of the supplementary supply contact finger are each arranged at the transverse height of another of the phase selection positions in the second operating state. Due to the system's suitability for providing the second operating state, the system can also be used to implement a luminaire in its second operating state with a contact device containing only a very small number of contacts.For example, the contact device can have seven contacts, one of which is configured as a neutral conductor, one as a phase conductor, two as supplementary supply conductors (particularly emergency lighting conductors), one as a protective earth (PE) conductor, and two as data conductors. The same system can then preferably be configured in its first operating state using the same contact device with more contacts, for example, nine contacts. In this first operating state, a luminaire can be implemented in which phase selection is possible, since the phase selection contact finger can be connected to one of three phase conductors. For example, in addition to the seven contacts described above, the nine contacts can include two further contacts as phase conductors.Preferably, in the second operating state, the contact section of the first supplementary supply contact finger is arranged at the transverse level of a first phase selection position, the contact section of the phase selection contact finger is arranged in a second phase selection position, and the contact section of the second supplementary supply contact finger is arranged at the transverse level of the third phase selection position. Generally, exactly three phase selection positions are preferably provided.

[0014] In one embodiment, the contact device is designed as a current conductor rail, i.e., the system comprises a longitudinally elongated support rail, a longitudinally elongated mounting body on which an electrical functional element, in particular a lighting module, and a contact device are arranged, and a longitudinally elongated current conductor rail having several channels extending along the longitudinal direction, arranged side by side along a transverse direction and open at an access side pointing in a vertical direction, and having transversely spaced contact holders designed as conductor wire holders for receiving one contact designed as a conductor wire each, defining its contact position, wherein the contact device has a housing in which several contact fingers, each having a contact section, are arranged.one of which is designed as a phase selection contact finger and another as a first supplementary supply contact finger and, in particular, another as a second supplementary supply contact finger, wherein each of the contact fingers is assigned to exactly one terminal device of the electrical functional element and is electrically connected to it for supplying the electrical functional element, wherein the phase selection contact finger can be arranged within the housing in at least two, in particular at least three different positions, with its contact section arranged in a phase selection position uniquely assigned to its respective position.wherein each of the phase selection positions is arranged at the transverse height of exactly one contact position assigned to the respective phase selection position, and in a first operating state the contact section of the phase selection contact finger is arranged in a first of the phase selection positions, and the contact section of the first supplementary supply contact finger, in particular the contact sections of the supplementary supply contact fingers, are each arranged at the transverse height of a contact position arranged outside the contact position assigned to the phase selection positions, wherein the first supplementary supply contact finger can be arranged in at least two different positions within the housing with its contact section arranged in a supplementary contact position uniquely assigned to its respective position,wherein in a second operating state the contact section of the first supplementary supply contact finger is arranged at the transverse height of the first phase selection position and the contact section of the phase selection contact finger is arranged in a second of the phase selection positions.

[0015] In one embodiment, the contact section of the phase selector contact finger is movable between the different phase selector positions while maintaining an electrical connection with its associated terminal of the electrical functional element. The phase selector contact finger can thus be moved from one of the described positions, in which its contact section is arranged in a phase selector position, to any other position, in which its contact section is arranged in a different phase selector position, without having to break the electrical connection between the phase selector contact finger and its associated terminal, or between its contact section and its associated terminal of the electrical functional element.In a further preferred embodiment, which is particularly preferably combined with the aforementioned one, the contact section of the first and, in particular, the contact section of the second supplementary supply contact finger is movable between its position in the first operating state and its position in the second operating state while maintaining its electrical connection with the associated connection device of the electrical functional element.The first supplementary supply contact finger can thus preferably be moved from its position in the first operating state, in which its contact section is outside the transverse heights of all phase selection positions, to its position provided in the second operating state, in which its contact section is preferably located in the described contact position at the transverse height of the first phase selection position, or at least it blocks positioning of the phase selection contact finger in its position associated with the first phase selection position, without the need to break an electrical connection between the supplementary supply contact fingers and their associated connection device or between its contact section and the associated connection device of the electrical functional element. This preferably also applies to the second supplementary supply contact finger.By enabling the described contact fingers to be moved without breaking the electrical connection between the respective contact finger and its associated connection device of the functional element, the contact device can be brought into its first or second target state without interfering with the internal wiring of the luminaire, whereby in the first target state of the contact device the first operating state can be realized and in the second target state of the contact device the second operating state, or the contact device is in the first target state of the system in the first operating state and in the second target state in the second operating state.This is particularly advantageous because, when installing a luminaire using a system according to the invention, an installer on site, after mounting the mounting rail with the contact device and contacts fixed therein to a component, for example a ceiling, can easily attach a mounting body with an electrical functional element to the mounting rail and thereby establish an electrical connection between the contacts in the contact device and the electrical functional element. For this, the installer only needs to move the contact device into its respective desired state without having to interfere with the internal wiring of the mounting body.This is particularly advantageous because the mounting bodies with installed contact device and functional element are usually supplied by a luminaire manufacturer, who provides a warranty for them as long as the internal wiring of the mounting body with its attached contact device and functional element is not tampered with. An installer can therefore modify the mounting body without voiding the warranty by changing the intended state of the contact device to achieve the desired operating condition.

[0016] Preferably, the contact sections of the first and second supplementary supply contact fingers are arranged at a constant transverse distance from each other in every operating state. This particularly simplifies the assignment of the supplementary supply contact fingers to supplementary supply contacts arranged in the contact device. For example, each supplementary supply contact finger can have a supplementary supply contact finger housing with corresponding outer contours, so that the supplementary supply contact finger housings can be uniquely positioned and fixed to one another via their outer contours.Particularly preferably, the supplementary supply contact fingers are arranged side by side in the transverse direction and rigidly connected to one another, so that the supplementary supply contact fingers can be moved together while maintaining their arrangement relative to each other along the transverse direction, and in particular while maintaining their arrangement relative to each other in any direction. The supplementary supply contact finger housings can thus be integrated into a single housing component, which can be moved within the housing of the contact device to realize the operating states or the target states of the contact device associated with the operating states of the system.Generally, the supplementary supply contact finger housings preferably have an outer contour that corresponds to the housing and the phase selection contact finger, in particular to the phase selection contact finger housing, such that in the first operating state they are fixedly positioned in the housing in such a way that the phase selection contact finger is spaced away from them and can be moved between the different positions, each of which is assigned one of the phase selection positions, whereas in the second operating state they are fixedly positioned in the housing in such a way that their outer contour defines the position of the phase selection contact finger to exactly one position that is assigned to exactly one of the phase selection positions.For example, in the second operating state, at least one of the supplementary supply contact finger housings can be directly adjacent to the phase selector contact finger, so that its position relative to the housing prevents the phase selector contact finger from being displaced or shifted from the second operating state. The position can be fixed indirectly via a locking element. Particularly advantageous in the aforementioned preferred embodiments is that the supplementary supply contact finger housings are integrated into a single housing component, i.e., a common supplementary supply contact finger housing, which can be fixed at different positions within the housing to switch between the first and second operating states. Preferably, these positions differ only with respect to the longitudinal direction, but not with respect to the transverse direction.This allows for a particularly simple and reliable switching between operating states, ensuring compliance with the respective operating state and, moreover, making it particularly easy to prevent incorrect contact, since the supplementary supply contact fingers can then be assigned the same contact, which is held in one of the contact holders of the contact device, in both operating states, and simply by changing the longitudinal position of the housing component that forms the supplementary supply contact finger housing, the displacement of the phase selection contact finger to set its contact section to different phase selection positions can be easily prevented or enabled.

[0017] In one embodiment, the contact sections of the first supplementary supply contact finger, and in particular the contact sections of the supplementary supply contact fingers, i.e., the first and the second supplementary supply contact fingers, are arranged longitudinally spaced from the contact section of the phase selector contact finger, at least in the first operating state, and in particular in each of the operating states. The contact sections of the contact fingers are the sections with which the contact fingers bear against their respective associated contacts in an operating state of a luminaire implemented by the system, i.e., in a functional state of the system in which it is in one of its operating states.The contact sections of the first and, in particular, the second supplementary supply contact finger are preferably spaced at least 2 mm, in particular at least 5 mm, and in particular between 2 mm and 30 mm, away from the contact section of the phase selector contact finger in the longitudinal direction. This spaced arrangement ensures a clear separation between the phase selector contact finger on the one hand and the supplementary supply contact finger(s) on the other. This allows for a compact design of the contact assembly, i.e., with the smallest possible transverse extent. Furthermore, the phase selector contact finger and the supplementary supply contact finger(s) can be provided with contact finger housings that ensure a predetermined repositionability of the contact fingers for setting them into the positions required in the first and second operating states of the system.Secondly, this can prevent assembly errors that could lead to incorrect contact, i.e., to a contact section of a contact finger coming into contact with a contact it is not assigned to and therefore not intended for. Furthermore, with such spacing, which is provided at least in the first operating state, the phase selection contact finger can be moved transversely from this initial operating state to position its contact section in a different phase selection position, thus making it particularly easy.Preferably, the contact section of the first supplementary supply contact finger, and in particular the contact sections of the supplementary supply contact fingers, is arranged longitudinally spaced from the contact sections of further contact fingers, at least in the first operating state, and in particular in every operating state, particularly at a distance analogous to the distance provided for the contact section of the phase selector contact finger, wherein these further contact fingers can be, for example, a PE contact finger, two data conductor contact fingers, and a neutral conductor contact finger. In a particularly preferred embodiment, the contact section of the first supplementary supply contact finger, and in particular the contact sections of the first and second supplementary supply contact fingers, is arranged longitudinally spaced from the contact section of the phase selector contact finger in the first operating state, whereas it or theIn the second operating state, they are arranged in the same longitudinal section, in particular at exactly the same longitudinal height, in or on which the contact section of the phase selection contact finger is located. In this embodiment, the longitudinal offset in the first operating state provides transverse clearance for the phase selection contact finger, allowing it to be moved from its position corresponding to the first phase selection position to any other position corresponding to a different phase selection position without requiring any movement of the supplementary supply contact fingers. In contrast, in the second operating state, this transverse clearance is eliminated, and the phase selection contact finger is fixed to a position corresponding to a specific phase selection position.

[0018] In one embodiment, in the first operating state, at least one of the supplementary supply contact fingers is arranged with its contact section in the transverse direction between two of the phase selection positions. Thus, in the first operating state, the contact section of the supplementary supply contact finger is transversely offset from the two phase selection positions. This ensures that the contact section of the supplementary supply contact finger cannot come into contact with a contact held in a specific contact holder of the contact device that is already in contact with the contact section of the phase selection contact finger.Particularly preferred is the arrangement, in the first operating state, of the contact sections of the first and second supplementary supply contact fingers in the transverse direction between two of the phase selection positions, such that the contact sections of both supplementary supply contact fingers are arranged transversely offset from the contact section of the phase selection contact finger. Furthermore, in the second operating state, the contact section of at least one of the supplementary supply contact fingers, and in particular the contact sections of both supplementary supply contact fingers, is also arranged in the transverse direction between two of the phase selection positions.Preferably, in the first and second operating states, the supplementary contact positions are offset transversely from the phase selection positions, with each supplementary contact position preferably being arranged transversely between two transversely adjacent phase selection positions. Preferably, the contact sections of the supplementary supply contact fingers are arranged at the same transverse height in both the first and second operating states. This can offer the particular advantage that certain contacts arranged in the contact device can be specifically assigned to the supplementary supply contact fingers, so that in both the first and second operating states, when the contact device is used to contact the contacts held in the contact holders of the contact device, the supplementary supply contact fingers contact the same contacts.

[0019] In a generally preferred embodiment, the contact device and the contact assembly are configured to correspond to each other such that the transverse distance between any two phase selection positions arranged directly adjacent to each other in the transverse direction is twice the transverse distance between any two contacts or contact holders of the contact device arranged directly adjacent to each other in the transverse direction. Thus, in every operating state in which the contact sections of the contact fingers of the contact assembly are in electrically conductive contact with contacts arranged in the contact holders of the contact device, a contact holder of the contact device is arranged in the transverse direction between two adjacent phase selection positions.This can facilitate an electrodynamic separation between the different phases with which the various contacts can be supplied, which are arranged in the respective contact holders, which in the respective operating state are in electrically conductive contact with the contact section of the phase section, depending on the choice of its phase selection position.

[0020] Preferably, the housing comprises two mounting areas arranged side by side in the longitudinal direction without overlap, wherein in each of the operating states the contact section of the phase selection contact finger is arranged in a first of the mounting areas, and in the first operating state, and particularly in every operating state, at least the contact section of the first supplementary supply contact finger, and in particular the contact sections of the first and second supplementary supply contact fingers, is / are arranged in a second of the mounting areas. Preferably, the entire contact fingers, including their contact finger housings, are arranged with more than 70%, and in particular more than 80%, of their longitudinal extent in the respective mounting area of ​​the housing in which their contact sections are arranged. Preferably, the contact fingers are arranged completely in the respective mounting area.The description of the respective arrangement naturally refers to the arrangement in the respective operating state. Preferably, the additional contact fingers are also arranged in the first mounting area. Preferably, the phase selection contact finger and the first supplementary supply contact finger, in particular the first and second supplementary supply contact fingers, are detachably held in the respective mounting area with their respective contact finger housings. The contact finger housings thus preferably have an outer contour that forms a fixing device, wherein a fixing device corresponding to the fixing device is provided in the respective mounting area for the contact finger housing of the respective contact finger. The fixing device and fixing device can, for example, be designed according to a tongue-and-groove principle or according to a latching principle.Preferably, the fixing device and fixing assembly ensure, through their interlocking, a determination of the position of the respective contact finger in the respective holding area with regard to the transverse direction and with regard to the longitudinal direction.Preferably, the fixing device and the fixing assembly are detachable from one another, thus allowing the contact finger to be moved within its holding area. This is achieved by moving the contact finger vertically from the position in which it is fixed by the interlocking of the fixing device and the fixing assembly, then moving it transversely, and subsequently by an inverse vertical movement re-engaging the fixing device and the fixing assembly. This holds the contact finger in a different position within the holding area, offset transversely from the previously mentioned position, as described, and fixes it in its position with respect to both the longitudinal and transverse directions. The contact finger housings of the supplementary supply contact fingers are particularly preferably formed by...The common supplementary supply contact finger housing includes a fixing device that corresponds to the fixing device formed by the housing in such a way that the fixing device and the fixing device form both a corresponding tongue-and-groove pair and a corresponding locking pair. Generally, the contact finger housings of the first and second supplementary supply contact fingers are formed jointly by a common supplementary supply contact finger housing, i.e., a common housing component. Particularly preferably, this supplementary supply contact finger housing, or each of the contact finger housings of the supplementary supply contact fingers, forms a groove or a tongue, wherein the housing forms a corresponding fixing device that is designed accordingly as a tongue or groove. Preferably, the supplementary supply contact finger housing, orEach of the contact finger housings of the supplementary supply contact fingers has a groove or tongue at one longitudinal end and a locking element at the same or the opposite longitudinal end, wherein the fixing device comprises the groove or tongue and the locking element, and wherein the corresponding fixing device formed by the housing accordingly forms a tongue or groove and a corresponding locking element. Preferably, the tongue-and-groove pairs are configured to correspond to each other such that the position of the supplementary supply contact finger housing or of each of the contact finger housings of the supplementary supply contact fingers relative to the housing with respect to the transverse direction is fixed by the interlocking of the groove and tongue, whereas the locking elements are configured to correspond to each other such that the position of the supplementary supply contact finger housing or of each of the contact finger housings of the supplementary supply contact fingers is fixed by their interlocking.The position of each of the contact finger housings of the supplementary supply contact fingers relative to the housing with respect to the vertical direction is fixed. Preferably, the fixing device of the supplementary supply contact finger housing, or of each of the contact finger housings of the supplementary supply contact fingers, and the fixing device of the housing engage with each other in the second operating state. Preferably, the locking pair formed by the fixing device and the fixing device can only be released from each other by a controlled deflection of one of the aforementioned locking elements, starting from the second operating state.

[0021] Particularly preferably, the contact device has a mis-insertion protection device arranged between the first and the second mounting area, which is designed to prevent the contact device from being inserted onto the contact device to establish one of the operating states if the contact device is not aligned with the contact device as intended.Preferably, the contact device has a mis-plugging protection device arranged between the first and the second mounting area, which comprises a plate element whose plate surface extends in the vertical and transverse directions, wherein the plate element has a contour on its vertical side facing the contact device in the operating state, which is designed to correspond to a contour of the access side of the contact device, wherein the plate element is mounted in the housing of the contact device in a vertically displaceable manner relative to the contact device in the vertical direction from its rest position only in one intended orientation, with respect to the transverse direction.The mis-insertion protection device serves to prevent the contact element from being inserted into the contact device in such a way that contact sections of contact fingers come into contact with contacts arranged in the contact device that are not assigned to the respective contact fingers. For this purpose, for example, the aforementioned plate element can be rotatably mounted in the housing of the contact device, whereby it can only be displaced in a predetermined rotational position in the vertical direction and otherwise rests against a stop provided in the housing.The corresponding design of the plate element's contour facing the contact device, relative to the contact device's access side, ensures that only when correctly positioned does the plate element's contour cause it to rotate in a position where it can be moved vertically from its initial position. In any other rotational position, the plate element rests against a stop on the housing, preventing vertical movement. By preventing vertical movement, the plate element blocks the contact device from being attached, thus preventing the contact sections of the contact fingers from making electrical contact with the contact device's contacts.If the contact device is designed as a conductor rail, the conductor rail and the misconnection protection device are preferably configured to correspond such that the contact sections of the contact fingers cannot be inserted into the channels of the conductor rail at any of the contacts designed as conductor wires. The misconnection protection device, in particular the plate element of the misconnection protection device, thus preferably extends vertically over all contact sections of the contact device in its initial position, i.e., in the rest position of the contact device independent of other components. When the contact device is placed onto the contact device as intended and moved vertically towards each other, it is displaceable in the vertical direction so that the contact sections are not misconnected during the operating state of the system and thus also during the operating state of a luminaire or light fixture implemented by the system.a functional state of the system, protruding vertically above the misplugging protection device or the plate element.

[0022] In one embodiment, the housing has a phase selection contact finger guide in which the phase selection contact finger is guided in a transverse direction, in particular, in a displaceable manner, to arrange its contact section in the various phase selection positions relative to the housing. The phase selection contact finger has a phase selection contact finger housing that is designed to correspond with the phase selection contact finger guide. Through the interaction of the phase selection contact finger housing and the phase selection contact finger guide, a predetermined displaceability of the phase selection contact finger in the transverse direction relative to the housing is ensured, allowing the phase selection contact finger to be brought into the different positions and moved between the different positions in the phase selection contact finger guide, each of which corresponds to a phase selection position of its contact section.Particularly preferably, the phase selection contact finger guide is designed correspondingly to the phase selection contact finger or its housing in such a way that it ensures the phase selection contact finger can be displaced in the transverse direction relative to the housing, while its position in the longitudinal, vertical, and transverse directions is fixed within a predetermined position range. Particularly preferably, the phase selection contact finger guide is designed correspondingly to the phase selection contact finger or its housing in such a way that tilt-free displaceability of the phase selection contact finger or its housing relative to the housing is ensured, i.e., a negligible tilt of less than 5°.Particularly preferred is the phase selection contact finger guide designed such that it allows the phase selection contact finger to be positioned in the housing only in those positions where the contact section of the phase selection contact finger is arranged in exactly one of the phase selection positions. Naturally, this always refers to the intended positioning of the phase selection contact finger in the housing, in which the contact device is configured to contact the contacts provided in the contact holders of the contact assembly.By allowing the phase selection contact finger to be positioned only in designated positions, each corresponding to exactly one of the phase selection positions, the phase selection contact finger is reliably ensured to achieve a specific functional state in every operating condition: a contact in the contact device to which a specific phase is applied. Preferably, the phase selection positions are spaced apart such that, in the functional state, at least one of the contact holders of the contact device is arranged transversely between two transversely adjacent phase selection positions.The phase selection contact finger guide can be suitably configured to define possible positions on only a selected number of positions. For example, the phase selection contact finger guide can have a groove or tongue that corresponds to a tongue or groove of the phase selection contact finger housing, and / or the phase selection contact finger guide and the phase selection contact finger housing can have corresponding projections or chamfers. In a generally preferred embodiment, the phase selection contact finger guide extends in the transverse direction over at least one of the supplementary supply contact fingers, and in particular over both of the supplementary supply contact fingers, in the first operating state and / or in the second operating state.It preferably extends at least over the contact sections of the supplementary prosthesis contact fingers, in particular over at least 50%, in particular at least 70%, in particular at least 80% of the total transverse extent of the respective supplementary prosthesis contact finger. Thus, the supplementary prosthesis contact fingers are arranged overlapping the phase selection contact finger guide with respect to the transverse direction. By offsetting the supplementary prosthesis contact fingers longitudinally such that they extend in the same longitudinal area as the phase selection contact finger guide, the displacement or relocation of the phase selection contact finger along the phase selection contact finger guide can be blocked.Preferably, the supplementary supply contact fingers are arranged longitudinally offset from the phase selection contact finger guide in the first operating state, whereas in the second operating state they are arranged longitudinally overlapping with the phase selection contact finger guide, particularly within the phase selection contact finger guide. More preferably, the phase selection contact finger guide forms a contact receptacle in a transverse area in which the phase selection contact finger is arranged in the first operating state, and in which the supplementary supply contact fingers are arranged in the second operating state.The phase selection contact finger comprises, in particular, a preferably tool-free actuating handle section, wherein, by actuating the handle section, the phase selection contact finger can be moved into different positions and between the different positions in the phase selection contact finger guide, each of which corresponds to a phase selection position of its contact section. Particularly preferably, the handle section projects beyond the housing through an opening formed in the housing, especially in the longitudinal or transverse direction. Tool-free actuation is understood to mean manual actuation, such that the handle section must have a minimum extension to which it can be grasped, for example, with a finger of the hand for actuation.Preferably, the handle section projects beyond the housing in each of its positions in which the contact section is in one of its phase selection positions, and during the movement between the phase selection positions, in particular by at least 3 mm, in particular by at least 5 mm, and can be actuated from an outside of the housing, which enables particularly ergonomic and safe actuation of the phase selection contact finger.

[0023] The housing preferably features a supplementary power supply contact finger guide in which at least the first, and in particular the supplementary power supply contact fingers, are guided to be displaceable, especially transversely displaceable, in their various positions relative to the housing for the first and second operating states. Preferably, the supplementary power supply contact finger has a supplementary power supply contact finger housing that is designed correspondingly to a supplementary power supply contact finger guide. The corresponding design of the supplementary power supply contact finger and supplementary power supply contact finger guide can be provided analogously to the corresponding design of the phase selection contact finger and phase selection contact finger guide.In one embodiment, the supplementary supply contact finger guide is formed by several contact receptacles of the housing, or the supplementary supply contact finger guide comprises several contact receptacles of the housing. The contact receptacles of the housing are discussed in detail elsewhere in this description.Particularly preferred are the phase selection contact finger guide, the supplementary supply contact finger guide and the outer contours of the phase selection contact finger housing and the supplementary supply contact finger housing designed to correspond to each other in such a way that an arrangement of the first supplementary supply contact finger, in particular the supplementary supply contact fingers, in their positions fixed in the second operating state, prevents the phase selection contact finger from being displaced in the phase selection contact finger guide and fixes the phase selection contact finger to its position fixed in the second operating state, in which its contact section is located at the second phase selection position.For this purpose, for example, the housing can include a locking element movable in the transverse direction, which forms a section of the phase selection contact finger guide and a section of the supplementary supply contact finger guide and whose position in the transverse direction is determined by positioning the supplementary supply contact fingers in their positions in the second operating state in such a way that a position of the phase selection contact finger in the second operating state is determined and, starting from this position, the phase selection contact finger can no longer be moved in the transverse direction.Alternatively, the outer contours of the supplementary power supply contact fingers can be designed to correspond to the outer contour of the phase selection contact finger such that, in the second operating state, the supplementary power supply contact fingers and the phase selection contact finger are spatially confined within the supplementary power supply contact finger guide and the phase selection contact finger guide, respectively, such that their outer contours interlock in such a way that transverse displacement of the phase selection contact finger from the second operating state is prevented. It is particularly preferred that at least the first supplementary power supply contact finger be displaceable in its various positions relative to the housing in the transverse and / or longitudinal direction when arranged in the first and second operating states.It is particularly preferred that the second supplementary supply contact finger be movable in its various positions relative to the housing in the transverse direction and / or longitudinal direction, as provided for in the first and second operating states. Preferably, the supplementary supply contact fingers are rigidly connected to one another and can only be moved together between the operating states, with the housings of the supplementary supply contact fingers being formed by a common housing component being particularly preferred. In a particularly preferred embodiment, the supplementary supply contact fingers are moved longitudinally, and in particular exclusively longitudinally, relative to the housing from the first operating state to reach the second operating state.Preferably, the supplementary supply contact fingers are designed to correspond to the housing in such a way that they can be repositioned by vertical removal from the housing with a first vertical movement and by vertical insertion with a second vertical movement opposite to the first. More preferably, the housing is open on one vertical side, from which the supplementary supply contact fingers can be removed from the housing and reinserted to reach the second operating state from the first operating state, and vice versa.

[0024] In one embodiment, the housing has a locking device which, in an initial position held in the first operating state of the system and thus in the first desired state of the contact device, prevents an arrangement of each supplementary supply contact finger, in particular the first and the second supplementary supply contact finger, with its contact section at the transverse height of one of the phase selection positions for realizing the second operating state, wherein the locking device can be moved from the initial position to a release position, which it holds in the second operating state of the system and thus in the second desired state of the contact device, in which an arrangement of at least the first supplementary supply contact finger, in particular of the supplementary supply contact fingers,with its contact section at transverse height one of the phase selection positions to realize the second operating state. Therefore, when the locking device is in its initial position, the first supplementary supply contact finger cannot simultaneously be in such a position.in which its contact section is located at the transverse height of the first phase selection position or at the transverse height of any other phase selection position. Only when the locking device is in its release position is the realization of the system's second operating state, and thus also the second operating state of a luminaire implemented by the system or the system's second functional state, possible. As explained, the locking device can be implemented, for example, by the corresponding design of the outer contours of the housings of the contact fingers, the supplementary supply contact finger guide, and the phase selection contact finger guide. The locking device can also be implemented, for example, by an element attached to the housing or arranged to be displaceable relative to the housing, or by comprising such an element.which must be moved from the initial position of the locking device or even detached from the housing to achieve the release position of the locking device. The provision of the locking device offers the particular advantage that the second operating state is only possible by changing the position of the locking device from the initial position to the release position. This allows for the realization of the second operating state, in which at least the first, and in particular the first and second, supplementary supply contact fingers with their contact section(s) are arranged at the transverse height of one of the phase selection positions. This deliberate change in the position of the locking device effectively prevents unintentional incorrect contacting.

[0025] In one embodiment, the locking device has a blocking element that, in its initial position, is connected to a housing wall and can be detached from the housing wall to reach the release position, preferably only irreversibly. The blocking element is preferably designed as a plate. For example, the blocking element can at least partially close an opening provided in the housing wall through which, in the second operating state, a connecting line must run, via which the supplementary supply contact finger(s) is / are connected to the associated connection device of the electrical functional element.Such a blocking element can prevent the supplementary supply contact fingers from being moved into a position in which their contact sections are arranged at a transverse height of each of the phase selection positions, since without moving the blocking element from the starting position to the release position, the connecting line from the respective supplementary supply contact finger to the respective assigned connection device is not possible or would only be possible under potentially destructive stress on the connecting line.

[0026] In one embodiment, the housing has a locking device comprising a locking element arranged along the longitudinal direction between the first supplementary power supply contact finger, in particular the first and the supplementary power supply contact finger, and the phase selector contact finger. The locking element has a first locking element section facing the phase selector contact finger and a second locking element section facing the supplementary power supply contact finger(s). In the first operating state, the first locking element section is in contact with the phase selector contact finger, and the second locking element section prevents the first, in particular each of the supplementary power supply contact fingers, from being positioned with its contact section at a transverse height from any phase selector position.In the second operating state, the second locking element section is in contact with at least the first supplementary supply contact finger, and in particular with both supplementary supply contact fingers, and the first locking element section prevents the phase selection contact finger from being positioned with its contact section in the first phase selection position, and in particular in any position other than the second phase selection position. The locking element is preferably designed in multiple parts, with each locking element part comprising a section of the first locking element section and a section of the second locking element section. In particular, actuation of a first of the locking element parts can prevent or release the supplementary supply section with its contact section from being positioned at the transverse level of the first phase selection position.In particular, actuating a second of the locking element parts can prevent or release the arrangement of the supplementary supply section with its contact section at the transverse height of the second phase selection position. In particular, actuating a third of the locking element parts can prevent or release the arrangement of the supplementary supply section with its contact section at the transverse height of the third phase selection position.In particular, the contact device comprises a position-locking element, preferably made of an electrically insulating material, which locks the phase-selector contact finger to a specific position, particularly with its contact section in the second phase-selector position. The position-locking element can be fixed to the housing, preferably detachably. The position-locking element is configured to correspond to the locking element and, in the second operating state, is in contact with the second locking element section, particularly in place of the supplementary supply contact. This prevents the first locking element section from positioning the phase-selector contact finger with its contact section in the phase-selector position at whose transverse height the position-locking element is located. The locking element sections are preferably rigidly connected to one another.The locking element is preferably a one-piece component that is enclosed by the housing and is mounted so as to be displaceable in the longitudinal direction relative to a housing wall.

[0027] The locking element advantageously provided according to the invention is in a first locking position in the first operating state and in a second locking position in the second operating state. From the first locking position, it moves into a second locking position by a longitudinal displacement relative to the phase selection contact finger and relative to the supplementary supply contact finger(s).Preferably, the first locking element section forms a first actuating section which is designed corresponding to a housing section of the phase selection contact finger housing, wherein the phase selection contact finger housing and in particular the phase selection contact finger guide and the first actuating section are designed corresponding to each other such that a positioning of the phase selection contact finger with its contact section in the first or third phase selection position necessarily entails a positioning of the locking element in its first locking position.This means that, in particular, the first actuation section can be actuated from the second locking position by vertically inserting the phase selection contact finger with its contact section in the first or third phase selection position, while positioning the locking element, in particular by moving the locking element perpendicular to the vertical direction, in its first locking position, wherein in particular the phase selection contact finger is guided vertically displaceable for actuating the first actuation section by the phase selection contact finger guide.Preferably, the second locking element section is designed as a second actuating section, wherein the supplementary supply contact finger housing of at least the first supplementary supply contact finger is designed corresponding to the second actuating section, and wherein, in particular, the supplementary supply contact finger guide, the supplementary supply contact finger housing, and the second actuating section are designed corresponding to each other in such a way that a positioning of the first supplementary supply contact finger with its contact section at the transverse height of the first phase selection position necessarily results in a positioning of the locking element in its second locking position.Preferably, the second actuating section can be actuated from the first locking position by vertically inserting at least the first supplementary supply contact finger with its contact section at the transverse height of the first phase selection position, while positioning the locking element, in particular by sliding it perpendicular to the vertical direction, in its second locking position. In particular, the supplementary supply contact finger is guided vertically displaceably by the supplementary supply contact finger guide for actuating the second actuating section. Preferably, the locking element with its second locking element section projects into a first locking area in its first locking position, within which the first or one of the supplementary supply contact fingers is arranged in the second operating state.Particularly preferably, the locking element, in its second locking position, projects with its first locking element section into a second locking area, within which the phase selection contact finger is arranged in a positioning where its contact section is in a phase selection position different from the second phase selection position. By projecting into the respective locking area, the respective contact finger is thus prevented from being arranged in the respective position, since the respective contact fingers in the respective position would have to fill at least part of the volume area that is already filled by the projection of the respective locking element section into the respective locking area. Particularly preferably, the first locking area lies exclusively within the second mounting area described above, in which the first or second locking element is preferably located.The second locking area is preferably located exclusively within the first mounting area, in which the phase selector contact finger, and especially preferably also the other contact fingers, are located. In one embodiment, the first locking element section, in the second operating state, encompasses the phase selector contact finger on both its transverse sides, the locking element being fixed in its transverse position by the interaction of its second locking element section with the first, and in particular with the first and second, supplementary power supply contact fingers, thereby preventing displacement of the phase selector contact finger. In one embodiment, the locking element is guided in a sliding guide of the housing so as to be longitudinally displaceable.In the first operating state, the locking element is arranged in a different position relative to the housing in the longitudinal direction than in the second operating state. The locking element, guided by the sliding guide, can be reversibly moved back and forth between the two positions relative to the housing. Particularly preferably, the locking element is configured to correspond to the sliding guide of the housing such that the sliding guide defines the position of the locking element in the transverse and / or vertical direction, but allows displacement of the locking element relative to the housing in the longitudinal direction. Preferably, the sliding guide is designed as a linear guide in the longitudinal direction.Particularly preferably, the housing and the locking element have corresponding detent devices by which the locking element is latched to the housing in both the first and second operating states, thus preventing any longitudinal movement of the locking element relative to the housing. Starting from the first and starting from the second operating state, a release force must first be applied to achieve a longitudinal displacement of the locking element relative to the housing. This release force enables movement of the locking element from the respective operating state, after which the locking element can then be moved longitudinally relative to the housing with a displacement force that is less than the release force.The provision of such detent devices has proven particularly advantageous, ensuring that the locking element is reliably held in every operating state and thus allowing the position of the locking element in a specific operating state to be precisely and permanently adjustable, especially independently of the position of the at least one supplementary contact finger. Particularly preferably, in both the first and second operating states, the housing extends vertically with a sliding guide section between two guide sections of the locking element, or the locking element extends vertically with a guide section between two sliding guide sections of the housing.Particularly preferred is one of the corresponding locking devices formed by the housing and locking element designed to be spring-elastically deflectable in the transverse direction, so that, starting from each of the operating states, the locking devices can be released by spring-elastic deflection of this locking device.

[0028] In one embodiment, the second locking element section is designed as an actuating section, which has an actuating surface inclined in both the longitudinal and vertical directions. Thus, by inserting the at least one supplementary supply contact finger into the housing in its position as it is in the second operating state, a longitudinal displacement of the locking element can be made particularly easy.Particularly preferably, the actuating surface and the supplementary supply contact finger housing are designed to correspond to each other in such a way that, when the supplementary supply contact finger housing is moved from the first operating state to reach the second operating state, the supplementary supply contact finger housing is moved vertically relative to the locking element and thereby slides vertically along the actuating surface, forcing a longitudinal displacement of the locking element until the supplementary supply contact finger housing and the locking element both occupy their respective positions relative to the housing, which they occupy in the second operating state.Particularly preferably, the housing and the supplementary supply contact finger housing have corresponding fixing devices and fixing elements such that, during the realization of the second operating state, as the supplementary supply contact finger housing is displaced vertically relative to the housing and slides on the actuating surface, these devices guide the supplementary supply contact finger housing to the housing, for example, by being designed as a tongue-and-groove pair. Particularly preferably, the second locking element section has two transversely spaced subsections, each forming a portion of the chamfered actuating surface. Preferably, the fixing device and / or fixing element are arranged at least partially between the two subsections in the transverse direction.In the second operating state, it is generally preferred that a section of the supplementary supply contact finger housing of the first and / or second supplementary supply contact finger is arranged transversely between the subsections. This ensures reliable guidance of the respective supplementary supply contact finger relative to the housing during a longitudinal displacement of the locking element relative to the housing caused by actuating the actuating section via the supplementary supply contact finger.In one embodiment, the contact positions, each assigned to one of the phase selection positions, are spaced apart along the transverse direction by a distance that is less than the extension of the phase selection contact finger and / or the extension of the first supplementary supply contact finger, in particular at least one of the two supplementary supply contact fingers along the transverse direction. By ensuring that the transverse width of said contact fingers is greater than the transverse distance between the conductor holder positions, the relative arrangement of the contact fingers effectively prevents erroneous engagement of the contact sections of the contact fingers at transverse positions of unassigned contact positions.

[0029] Preferably, the housing has several offset contact receptacles corresponding to the first supplementary supply contact finger, in particular the supplementary supply contact fingers, into which the first supplementary supply contact finger, in particular the supplementary supply contact fingers, can be detachably inserted to achieve the respective operating state. Preferably, the contact receptacles are offset from each other longitudinally and / or transversely. The position of the first supplementary supply contact finger, in particular of each of the supplementary supply contact fingers, is thus preferably determined by the contact receptacle provided in the housing, which is assigned to the respective supplementary supply contact finger in the respective operating state. The contact receptacles can be formed by the fixing device described above, or by the contact receptacle described above.a fixing device designed as described above. Preferably, each of the contact receptacles has a fixing device for the housing, wherein, in particular, two of the contact receptacles have identically designed fixing devices and / or two of the contact receptacles have differently designed fixing devices, which, however, are each designed corresponding to the fixing device as described above, in particular as described above for determining the position of the supplementary supply contact finger(s) in the respective contact receptacle in which it is / are arranged in the respective operating state. A detachable insertion of the supplementary supply contact finger orInsertion of the supplementary supply contact finger into the associated contact receptacle can be achieved by vertical insertion, which prevents displacement of the supplementary supply contact finger in the transverse and longitudinal directions without simultaneous vertical displacement. Preferably, a releasable insertion of the respective supplementary supply contact finger, in particular a joint releasable insertion of the supplementary supply contact fingers into the associated contact receptacle starting from an intermediate position in which the first or the supplementary supply contact fingers are arranged at least partially vertically outside an extension of the housing and / or vertically outside an extension of the misinsertion protection device, particularly in its rest position, and in particular in which the supplementary supply contact finger is arranged perpendicular to the vertical direction at the level of its associated contact receptacle.Preferably, the contact is designed to correspond to the first, in particular the first and the second supplementary supply contact finger, such that insertion is made possible by vertical insertion into the contact.

[0030] In one embodiment, the first supplementary supply contact finger is arranged in a first associated contact receptacle of the housing in the first operating state and in a second associated contact receptacle of the housing in the second operating state. Preferably, the second supplementary supply contact finger is also arranged in a first associated contact receptacle of the housing in the first operating state and in a second associated contact receptacle of the housing in the second operating state. Preferably, the supplementary supply contact finger housings are connected by a common housing component, i.e.,A common supplementary supply contact finger housing is formed, wherein this common housing component is arranged in a first contact receptacle of the housing associated with it in the first operating state and in a second contact receptacle of the housing associated with it in the second operating state. By arranging the housing component in the contact receptacle associated with the housing component, each of the supplementary supply contact fingers is correspondingly arranged in the respective contact receptacle that is associated with it, since it is associated with the housing component that forms its contact finger housing. The contact receptacles preferably each have a fixing device that is configured correspondingly to the fixing device of the supplementary supply contact fingers.The fixing devices of the two different contact receptacles can be identical or different; however, they are each designed to correspond to the fixing device of each of the supplementary supply contact fingers, so that the supplementary supply contact fingers are securely held in position in every operating state by the interaction of the fixing device and the fixing device in the respective contact receptacle and thus fixed in their position. Particularly preferably, the first and / or the second supplementary supply contact finger extends over the same longitudinal section in the second contact receptacle, within which the phase selection contact finger extends in the second operating state. Particularly preferably, the first and / or second supplementary supply contact finger is arranged transversely next to the phase selection contact finger in the second operating state.Preferably, the first and second contacts are longitudinally offset from each other, and in particular spaced apart. Preferably, the supplementary power supply contact fingers extend in a different longitudinal section in the first operating state than in the second operating state; preferably, the supplementary power supply contact fingers do not overlap longitudinally with the phase selector contact finger in the first operating state. In a preferred embodiment of the contact device such that, in the second operating state, at least one of the supplementary power supply contact fingers extends over the same longitudinal section as the phase selector contact finger and is arranged transversely next to it, it can effectively prevent displacement or displacement of the phase selector contact finger in the second operating state with its supplementary power supply contact finger housing, which is in particular designed as part of the housing component.In general, and particularly preferably, the second contact point and / or at least one of the supplementary supply contact fingers extends transversely in the first and / or second operating state to the level of one of the positions of the phase selection contact finger that are assigned to the first or the third phase selection position. Particularly preferably, in the second operating state, and especially in the first operating state, the second contact point and / or the supplementary supply contact fingers extend transversely to the level of the positions of the phase selection contact finger that are assigned to the first and third phase selection positions. This effectively prevents the phase selection contact finger from being positioned at the level of one of these positions in the second operating state. In general, and preferably, the first and second contact points extend over the same transverse area.Preferably, the first and second contacts extend over exactly the same transverse area. Thus, the contacts are preferably offset from each other only longitudinally, but cover the same transverse area.

[0031] In one embodiment, the contact receptacle, supplementary supply contact finger, and locking device are configured to correspond to each other such that the locking device can be moved from its initial position to a release position by inserting the first supplementary supply contact finger(s) into the contact receptacle with the respective contact section at the level of one of the phase selection positions. In particular, the locking element, especially its second actuating section, is locked in its first locking position by inserting the contact section of the first supplementary supply contact finger(s).The contact sections of the supplementary supply contact fingers can be actuated into the contact receptacle at the level of one of the phase selection positions in such a way that the locking element is in its second locking position when the respective position of the respective contact section is reached at the level of one of the phase selection positions. Preferably, the contact fingers each have a connection interface, wherein the housing has a first housing opening facing a first connection side, through which the phase selection contact finger is electrically connected to its associated connection device. In particular, the handle section projects through this first housing opening and, more specifically, beyond the extent of the housing.Preferably, the housing has a second opening facing a second connection side, through which the first supplementary supply contact finger, and in particular the first and second supplementary supply contact fingers, are each electrically connected to their respective connection devices. Particularly preferably, the locking device limits the extent of the second opening in its initial position, especially in the transverse direction. Particularly preferably, the two connection sides of the housing point in two opposite directions along the longitudinal axis. Particularly preferably, the first opening is an uninterrupted opening that is exclusively dedicated to the phase selector contact finger, so that only the phase selector contact finger is connected to its associated connection device of the functional element via a connecting line through this first opening.Preferably, the connection interface of the respective contact fingers projects through its corresponding housing opening. Particularly preferably, the second housing opening has two housing partial openings separated from each other along the transverse direction, wherein, through a first housing partial opening, the first supplementary supply contact finger, in particular the supplementary supply contact fingers, are electrically connected to their associated connection devices in the first operating state, and through the second housing partial opening, the first supplementary supply contact finger, in particular the supplementary supply contact fingers, are connected to their associated connection devices of the functional element in the second operating state.

[0032] In one embodiment, the contact device has additional contact fingers that are fixed in position relative to the housing and thus, unlike the first contact finger, the supplementary power supply contact finger, and the phase selection contact finger, cannot be arranged in different positions, or at least cannot be arranged as intended, and can only be repositioned by improper use of tools, and therefore preferably not without tools. At least two of the additional contact fingers are designed as data line contact fingers, wherein the electrical functional element can be electrically controlled in every operating state of a luminaire according to the invention, which can be realized by a respective operating state of the system, via the contacts that are electrically conductively connected to one of the contact sections of the data line contact fingers by means of a communication protocol, in particular by means of a DALI protocol.The additional contact fingers can, for example, further comprise a PE contact finger and a neutral contact finger. In every operating state, the additional contact fingers are arranged outside the transverse height of the phase selection positions and the transverse height of the contact sections of the first supplementary supply contact finger, in particular the supplementary supply contact fingers, i.e., the first and the second supplementary supply contact fingers. The additional contact fingers are preferably arranged exclusively within the first mounting area of ​​the housing described above.

[0033] In one embodiment, the contact device has a first and a second group of contact fingers, wherein the first group is longitudinally offset from the second group and, with respect to the transverse direction, in both the first and second operating states, at least one contact finger of the second group is arranged between a plurality of contact fingers of the first group. Preferably, the contact device has a first and a second group of contact fingers in both the first and second operating states, wherein the first group is longitudinally offset from the second group. When referring to the offsetting of the groups, this naturally means the offsetting of the contact fingers of the respective groups.The first group of contact fingers is particularly preferably arranged in the first mounting area described above, and the second group of contact fingers is arranged in the second mounting area described above, preferably exclusively in their respective mounting areas. The contact device is particularly preferably designed such that the supplementary supply contact fingers belong to a different group in the first operating state than in the second operating state. Preferably, the supplementary supply contact fingers are the only contact fingers of the contact device that belong to a different group in the first operating state than in the second operating state.In a particularly advantageous embodiment, in which, with respect to the transverse direction, a contact finger of the second group is arranged between each pair of contact fingers of the first group, electrodynamic decoupling of the contact fingers can be particularly favored, in particular electrodynamic decoupling of the contact points where the contact sections of the contact fingers bear against the respective contacts arranged in the contact holders of the contact device in the functional state.

[0034] In one embodiment, the system comprises two contact devices, each with a contact holder at three identical transverse positions, i.e., at the same transverse height, wherein each of these three contact holders of each contact device is assigned to exactly one of the three phase selection positions and a contact is received in each of these contact holders. Furthermore, each contact device has another contact device at one identical transverse position, i.e., a position relative to the transverse direction, and in particular, another contact holder is provided at two identical transverse positions, offset in the transverse direction from all phase selection positions.Both contact devices thus each have a first additional contact holder at the same transverse position and, in particular, a second additional contact holder at the same transverse position, wherein the first and second contact holders are each offset in the transverse direction relative to all phase selection positions. In one of the two contact devices, a contact is received in each of the two additional contact holders; in the second of the two contact devices, the additional contact holders are free, so that no contact is received in them.In the first operating state of the system, the first contact device is attached to the mounting rail, and the contact section of the first supplementary supply contact finger rests against the contact arranged in the further contact holder. In particular, the contact sections of the supplementary supply contact fingers rest against the contacts arranged in the further contact holders, and the contact section of the phase selector contact finger rests against one of the contacts arranged in the contact holders associated with the phase selector positions. In the second operating state of the system, the second contact device is attached to the mounting rail, and the contact section of the supplementary supply contact finger rests against a first of the contacts received in the contact holders associated with the phase selector positions.The contact sections of the supplementary supply contact fingers are located on a first and a third of the contact holders assigned to the phase selection positions, and the contact section of the phase selection contact finger is located on a second of the contacts assigned to the phase selection positions.By providing a first and second contact device, the system for realizing two different luminaires can be offered at different cost points, namely by equipping the contact device with a different number of contacts, whereby in a first luminaire, which is realized with the first contact device, a phase selection can be carried out by the phase selection contact finger, whereas in the second luminaire, which is realized with the second contact device, the phase selection contact finger cannot be moved to carry out a phase selection.

[0035] The invention further relates to a contact device for a system according to the invention. The contact device comprises a housing in which several contact fingers, each having a contact section, are arranged, one of which is configured as a phase selection contact finger and at least one further as a first supplementary supply contact finger, in particular at least two further as first and second supplementary supply contact fingers. The contact sections of the contact fingers are arranged offset from one another along the transverse direction. The contact fingers are each electrically connectable to a connection device of an electrical functional element that is uniquely assigned to them.The contact section of each contact finger can be electrically connected to its associated contact, which is arranged in a contact holder of a contact device. This connection can be made by vertically attaching the contact device to the contact device. The phase selection contact finger can be arranged with its contact section in at least two, and in particular at least three, different phase selection positions offset from one another along the transverse direction. In a first desired state of the contact device, the contact section of the phase selection contact finger is arranged in a first of the phase selection positions, and in a second desired state of the contact device, the contact section of the phase selection contact finger is arranged in a second of the phase selection positions.In the second desired state, the first supplementary supply contact finger is arranged in a different position relative to the housing than in the first desired state and blocks an arrangement of the phase selection contact finger in its position corresponding to the first phase selection position. Preferably, in the second desired state, the second supplementary supply contact finger is also arranged in a different position relative to the housing than in the first desired state and blocks an arrangement of the phase selection contact finger in its position corresponding to the third phase selection position.

[0036] The invention further relates to a lamp manufactured with a system according to the invention, wherein the system is located in its first or second operating state within the lamp. The invention further relates to the use of a system according to the invention for realizing a lamp or a method for realizing a lamp.

[0037] According to the inventive method, a luminaire, in particular using an inventive system, is realized which has a longitudinally elongated support rail, a longitudinally elongated mounting body on which an electrical functional element, in particular a luminaire module, and a contact device are arranged, and a contact device which is attached to the support rail and has several contact holders spaced apart from each other in a transverse direction (Y) on an access side pointing in a vertical direction (Z), in each of which a contact is received with its contact position defined.The contact element of the luminaire comprises a housing in which several contact fingers, each with a contact section, are arranged. One of these fingers is configured as a phase selection contact finger, and at least one further finger is configured as a first supplementary supply contact finger, and in particular, a further finger is configured as a second supplementary supply contact finger. Each contact finger is assigned to exactly one connection device of the electrical functional element and is electrically connected to this connection device to supply the electrical functional element in the luminaire. The phase selection contact finger can be arranged within the housing in at least two, and in particular at least three, different positions, with its contact section positioned in a phase selection position uniquely assigned to each position. Each of the phase selection positions is assigned to a different contact.In the method according to the invention, the mounting body with the functional element and contact device attached thereto, and the contact device itself, are attached to the mounting rail. Preferably, the contact device is first attached to a mounting rail base, and then the mounting body is attached to the mounting rail. When the mounting body is attached to the mounting rail, the contact section of one of the contact fingers is brought into electrically conductive contact with exactly one of the contacts. The contact device may have additional contact fingers which, due to the absence of a corresponding contact, are not brought into contact with a corresponding contact.

[0038] In a particularly preferred embodiment of the method according to the invention, the contact section of the first supplementary supply contact finger is arranged on one of the contacts associated with the phase selection position, and the contact section of the phase selection contact finger is arranged on another of the contacts associated with the phase selection positions. Particularly preferably, the contact section of the second supplementary supply contact finger is arranged on a further contact that is not associated with either of the other phase selection positions, but rather with a further phase selection position. By arranging the contact section of the respective contact finger on the contact, an electrically conductive connection is established between the contact section and the respective contact associated with it.Accordingly, the arrangement of the contact section of the respective contact finger provides an electrically conductive connection between the associated contact and the associated connection device of the functional element.

[0039] The various described embodiments according to the invention may each also exhibit features of other embodiments according to the invention and / or features of generic embodiments.

[0040] The invention is explained in more detail below with reference to exemplary embodiments and seven figures.

[0041] They show: Figure 1: Two views of a first embodiment of a contact device according to the invention, shown in various schematic representations; Figure 2: The embodiment according to the invention, shown in various schematic representations. Figure 1in a second operating state; Figure 3: in various schematic principle representations the embodiment according to Figure 1in a first operating state; Figure 4: detailed views of components of a further embodiment of a contact device according to the invention in various schematic diagrams; Figure 5: a further embodiment of a contact device according to the invention; Figure 6: a further embodiment of a contact device according to the invention in various schematic diagrams; Figure 7: a view of a cross-section of components of an embodiment of a system according to the invention in a schematic diagram; Figure 8: detailed views of the phase selection contact finger of an embodiment of a contact device according to the invention in schematic diagrams; Figure 9: various views of different components of a further embodiment of a contact device according to the invention in various schematic diagrams;Figure 10: various schematic representations showing different views of a further embodiment of a contact device according to the invention; Figure 11: various schematic representations showing different views of components of the embodiment according to the invention; Figure 10 Figure 12: a schematic representation of the housing of the embodiment according to Figure 10 Figure 13: a schematic representation showing a bottom view of components of the embodiment according to Figure 10 .

[0042] In Figure 1 comprehensive the Figures 1a and 1b Two different schematic representations show two different views of an embodiment of a contact device 100 according to the invention. Figure 1a shows a view of the first connection side of the contact device 100, Figure 1bFigure 1 shows a view of a second connection side of the contact device 100. The two connection sides point in opposite directions along the longitudinal direction X, which is generally advantageous according to the invention. The contact device 100 has a housing 1. Several contact fingers 2, 3, 4 are held in the housing 1. These contact fingers 2, 3, 4 include a phase selection contact finger 2, a first supplementary supply contact finger 3 and a second supplementary supply contact finger 4, as well as a PE contact finger, a neutral conductor contact finger, and two data conductor contact fingers. The housing 1 has a first housing opening 10, which is provided on the first connection side of the housing 1 and through which the phase selection contact finger 2 is to be connected via a connecting line 21 to an associated connection device of an electrical functional element.The housing 1 has a second housing opening on its second connection side, which comprises several partial openings 11, 12, 13, 14 that are separated from each other in the transverse direction Y. In a specific state of the contact device 100, each of these partial openings 11, 12, 13, 14 is assigned to a specific supplementary supply contact finger 3, 4, and the respective supplementary supply contact finger 3, 4 is to be connected via an associated connecting line 31, 41 through the associated partial opening 11, 12, 13, 14 to an associated connection device of an electrical functional element. Each of the contact fingers 2, 3, 4 has a contact section 20, 30, 40 which, in a system operating as intended, comprising the described contact device 100, is electrically connected to a conductor wire arranged in a channel of the busbar to realize a luminaire.The contact sections 20, 30, 40 form a vertical end of the contact device 100, which is generally advantageous, at least in the operating state of the system. The contact device 100 also has fastening elements 15 by which it can be attached to a mounting body. The fastening elements 15 are designed as locking elements that correspond to locking elements of the mounting body, which are preferably designed as projections. The provision of such locking elements is generally advantageous according to the invention. Preferably, in an operating state of the system or operating state of the luminaire, the contact device 100 is positioned fixed relative to the mounting body by the interlocking of the locking elements of the contact device 100 and the mounting body. Preferably, the locking elements ensure a positive fit acting in the vertical direction Z.

[0043] In Figure 2 comprehensive the Figures 2a and 2b and in Figure 3 comprehensive the Figures 3a and 3b Is the contact facility 100 according to Figure 1 The illustration schematically depicts various operating states. The representation according to Figure 3 Additional contact fingers are provided in the contact device 100, but these are not relevant for understanding the invention. Figure 2 The contact device 100 is shown in its second target state, in Figure 3 in its first target state. The contact device 100 is in its first target state when a system according to the invention with such a contact device 100 is in its first operating state, and the contact device 100 is in its second target state when a system according to the invention with such a contact device 100 is in its second operating state. From the Figures 2 and 3It can be seen that the contact device 100 comprises a locking element 5, which has a first locking element section 51 and a second locking element section 52. In the Figure 2In the second desired state of the contact device 100 shown, the contact sections 30, 40 of the supplementary supply contact fingers 3, 4 are located at the transverse height of a first and a third phase selection position, and the contact section 20 of the phase selection contact finger 2 is located in a second phase selection position. By having the locking element 5 rest against the second supplementary supply contact finger 4 in the longitudinal direction X with its second locking element section 52 in the second desired state, the locking element 5 is fixed in such a longitudinal position that its first locking element section 51 encompasses the phase selection contact finger 2 on both sides in the transverse direction Y.By also fixing the second locking element section 52 to its transverse position within a predetermined position range by the outer contour of the housing part, which together forms the supplementary supply contact finger housings of the two supplementary supply contact fingers 3, 4, the phase selection contact finger 2 is in the second operating state, which is in . Figure 2 is depicted, on his in Figure 2 The position shown is determined along the transverse direction Y, in which its contact section 20 is located in the second phase selection position. Figure 3In contrast, the contact sections 30, 40 of the supplementary supply contact fingers 3, 4 are arranged outside the phase selection positions in the transverse direction Y. Accordingly, the locking element 5 with its second locking element section 52 is also not in contact or engagement with either of the two supplementary supply contact fingers 3, 4. Thus, the locking element 5 is not fixed in its longitudinal position by the supplementary supply contact fingers 3, 4 and is located in the Figure 3 The position shown is outside the extension range, with respect to the longitudinal direction X, of the phase selection contact finger 2. Accordingly, the phase selection contact finger 2 with its contact section 20 can be arranged in any one of the three phase selection positions. Figure 3b It can be seen that in the Figure 3 In the first target state of the contact device 100 shown, the second locking element section 52 is located in a locking area in which the Figure 2In the second operating state shown, the second supplementary supply contact finger 4 is arranged. Accordingly, when the phase selection contact finger 2 with its contact section 20 is arranged in the third or second phase selection position, the locking element 5 prevents an arrangement of the supplementary supply contact fingers 3, 4 according to the diagram shown. Figure 2 the second operating state shown. From the overall view of the Figure 1 , 2 and 3 It is further evident that the housing 1 forms a phase selection contact finger guide, which allows guided displacement of the phase selection contact finger 2 along the transverse direction Y in the Figure 3 The first target state of the contact device 100 is enabled.

[0044] In Figure 4 comprehensive the Figures 4a and 4bVarious schematic diagrams illustrate components of a particularly preferred embodiment of a contact device 100 according to the invention. Figure 4a Case 1 is shown, in Figure 4b The supplementary supply contact finger housing 34 of the first and second supplementary supply contact fingers 3, 4 is shown in two different perspectives. In the particularly preferred embodiment according to Figure 4The supplementary supply contact finger housing 34 and the housing 1 form a corresponding fixing device or fixing assembly. For this purpose, the supplementary supply contact finger housing 34 has a spring 346 on one longitudinal side, and the housing has a corresponding groove 17. With respect to the transverse direction Y at the level of the groove 17, the housing 1 also has a detent element 16. To realize the second operating state, the supplementary supply contact finger housing 34 is moved in the vertical direction Z relative to the housing 1, whereby the detent element 16 is deflected elastically in the longitudinal direction X, while the spring 346 slides along the detent element 16, whereby after realization of the second operating state, the detent element 16 snaps behind the spring 346 and thereby inhibits any relative movement in the vertical direction Z of the supplementary contact finger housing 34 relative to the housing 1 starting from the second operating state.Furthermore, the interlocking of spring 346 and groove 17 prevents the supplementary supply contact finger housing 34 from shifting relative to the housing 1 in the second operating state in the transverse direction Y.

[0045] In Figure 5Figure 1 shows a further embodiment of a contact device 100 according to the invention. This contact device 100 includes a misconnection protection device with a plate element 6. The misconnection protection device is located between the first mounting area, in which the phase selection contact finger 2 is arranged, and the second mounting area, in which the supplementary supply contact fingers 3, 4 are arranged. The plate element 6 projects vertically beyond the contact sections 20, 30, 40 of all contact fingers 2, 3, 4. Only when a designated actuating section of the plate element 6 is actuated can the plate element 6 be moved downwards along the vertical direction Z to allow the insertion of the contact sections of the contact fingers 2, 3, 4 into the channels of a current conductor corresponding to the contact device 100.

[0046] In Figure 6 comprehensive the Figures 6a , 6b and 6cIn various schematic diagrams, a further embodiment of a contact device 100 according to the invention is shown. In the Figure 6 The contact device 100 shown includes a blocking element 500, which is located in the Figure 6a and Figure 6b In the depicted state of the contact device 100, a portion of the housing opening of the housing 1 of the contact device 100, which is associated with the supplementary supply contact fingers 3, 4, is closed off. Accordingly, the blocking element 500 prevents the supplementary supply contact fingers 3, 4 from being arranged at the level of one of the phase selection positions while simultaneously connecting the supplementary supply contact fingers 3, 4 to their associated connection devices of an electrical functional element. Figure 6aThe blocking element 500 is shown in its initial position. Only by removing the blocking element 5, which is attached to the housing wall of the housing 1, thereby bringing the blocking element 500 into its release position, in which it no longer closes the housing opening, is it possible to arrange the supplementary supply contact fingers 3, 4 with their contact sections 30, 40 at the level of the first and third phase selection positions. From the Figures 6b and 6c It is further evident that the supplementary supply contact finger housings of supplementary supply contact fingers 3, 4 have an outer contour that corresponds to the outer contour of the phase selection contact finger housing of phase selection contact finger 2. Due to the corresponding outer contour, in Figure 6cThe second desired state of the contact device 100 shown does not prevent the phase selection contact finger 2 with its contact section 20 from being positioned at the level of the first and third phase selection positions. Rather, the phase selection contact finger 2 with its contact section 20 is located in the second phase selection position and is fixed there. The transverse position of the phase selection contact finger 2 is fixed by the engagement of a housing section 55 of the phase selection contact finger housing by housing sections 53, 54 of the supplementary supply contact finger housings of the first and second supplementary supply contact fingers 3, 4.

[0047] In Figure 7For illustrative purposes, a schematic diagram shows a section of a system according to the invention in its second operating state. In this operating state, conductor wires 400 are arranged in the channels of the busbar 300. The contact device 100, with its contact sections 20, 30, 40, is arranged in the channels and in contact with the conductor wires 400. The busbar 300 is attached to a mounting rail base of the mounting rail 200. The contact device 100 is mounted on a Figure 7 a mounting body (not shown) is attached, which in turn is attached to the side of the support rail 200 opposite the base of the support rail, which is generally advantageous according to the invention.

[0048] In Figure 8 comprehensive the Figures 8a and 8bThe phase selector contact finger 2 of an embodiment of a contact device 100 according to the invention is shown in detail. The phase selector contact finger 2 has a guide projection 22 which is guided in the first housing opening 10 provided on the first connection side to ensure guidance of the phase selector contact finger 2 relative to the housing 1. The phase selector contact finger 2 also has a phase selector contact finger housing 23 in which a contact element 25 is slidably guided in the vertical direction Z. The contact element 25 forms the contact section 20 of the phase selector contact finger 2 and is vertically spring-loaded by a spring element 24. The contact element 25 has a guide section 26 by which it is guided in the vertical direction Z in the phase selector contact finger housing 23. The contact element 25 also has a contact interface 27 for receiving and connecting a connecting line 21.

[0049] In Figure 9 comprehensive the Figures 9a, 9b , 9c and 9d Various schematic diagrams illustrate different views of components of a further embodiment of a contact device 100 according to the invention. In this particularly advantageous embodiment, the housing 1, the supplementary supply contact finger housing 34, and the locking element 5 are designed to correspond to each other in a particularly advantageous manner. The supplementary supply contact finger housing 34 is designed as a common contact finger housing for the two supplementary supply contact fingers 3 and 4. The supplementary supply contact finger housing 34 has a spring 346 at one longitudinal end, which corresponds to a groove 17 of the housing 1, whereby, as already shown in [reference to relevant section] Figure 4It is explained that guidance of the supplementary supply contact finger housing 34 relative to the housing 1 is ensured during the realization of the second operating state. Furthermore, the supplementary supply contact finger housing 34 has a projection 347 at its opposite longitudinal end, which is designed as a locking element that, in the second operating state, locks into a corresponding locking element 16 of the housing 1. Housing 1 and supplementary supply contact finger housing 34 thus form a corresponding fixing device and fixing assembly.It should be noted here that the housing 1 has such a fixing device which is designed to correspond to the fixing device of the supplementary supply contact finger housing 34 in both the first operating state and the second operating state, so that in each operating state a detent element 16 of the housing is engaged with the projection 347 and the spring 346 is guided in a groove 17 of the housing 1. This is generally advantageous according to the invention. While in the . Figures 9a and 9b The interaction between the fixing device and the fixing assembly is evident from the overall view of the Figure 9a , 9c and 9dThe interaction between the locking element 5 and the housing 1 is evident. The housing 1 forms a sliding guide for the locking element 5. This sliding guide is designed as a linear guide, by which the locking element 5 is guided longitudinally displaceable relative to the housing 1 in the longitudinal direction X. For this purpose, the locking element 5 has two guide sections 501, 502, wherein a sliding guide section of the housing 1 is arranged in the vertical direction Z between these two guide sections 501, 502, as shown in Figure 9d in conjunction with Figure 9cAs can be seen, the housing 1 has a longitudinally elongated opening 18 through which a guide section 503 of the locking element 5, connecting the two aforementioned guide sections 501 and 502, passes. This opening 18 also has a constriction, which is designed as a detent 19 of the housing 1. The aforementioned guide section 503 is locked in every operating state (in) by the detent 19. Figure 9d (The position of the locking element 5 in the first operating state is shown) is restricted with respect to longitudinal displacement in X relative to the housing 1. Longitudinal displacement of the locking element 5 relative to the housing 1 is only possible through spring-elastic deflection of this guide section 503 in the transverse direction Y, which itself forms a detent corresponding to the detent device 19 of the housing 1. Figure 9It is thus evident that the locking element 5 is fixed by the sliding guide of the housing 1 in the transverse direction Y and in the vertical direction Z relative to the housing 1 and is only displaceable in the longitudinal direction X relative to the housing 1. To facilitate access to the second operating state from the first operating state, the second locking element section 52 of the locking element 5 is designed as an actuating section with an actuating surface that runs obliquely to the longitudinal direction X and obliquely to the vertical direction Z. By inserting the supplementary supply contact finger housing 34, which is in Figure 9b As shown, the supplementary supply contact finger housing 34 can thus slide into the housing 1 on the chamfered actuating surface and thereby generate a longitudinal displacement of the locking element 5 relative to the housing 1 to achieve the second operating state, which is generally advantageous according to the invention.

[0050] In the Figures 10-13A further embodiment of a contact device according to the invention is shown in various schematic representations. Figure 10 comprehensive the Figures 10a, 10b and 10c Various views of the further embodiment are shown in schematic diagrams. Figure 10a Figure 1 shows a top-down oblique view of the contact device 100 in an operating state in which the supplementary supply contact fingers 3, 4 occupy the positions they occupy in the first operating state, and in Figure 10c This shows a view from a slightly elevated angle in the second operating state. Figure 10b Is the contact device 100 in operating condition according to Figure 10a , however, shown in an oblique frontal view. In Figure 11 comprehensive the Figure 11a , 11b , 11c and 11dThe supplementary supply contact fingers of the aforementioned embodiment are shown in various schematic diagrams, each depicting different views or components of the supplementary supply contact fingers 3, 4. Figure 12 The housing 1 of the aforementioned embodiment is shown in a schematic diagram, taken on its own. Figure 13 The housing 1 together with components of the supplementary supply contact fingers 3, 4 is shown in a schematic diagram from below.

[0051] During the Figures 10-13 In the embodiment shown, the supplementary supply contact finger housings of the supplementary supply contact fingers 3, 4 are formed by a common housing component and thus a common supplementary supply contact finger housing 34. As can be seen from the Figure 11a , 11b and 11cThe supplementary supply contact finger housing 34 has springs 346, 348 and projections 347, 349. The projections 347, 349 function as detent elements, with the housing 1, as shown in the Figure 12 and 13 As can be seen, it has corresponding locking elements 16, 169. The housing 1, as shown from Figure 12 Several contact receptacles 101 are visible, into which the supplementary supply contact finger housing 34 can be inserted to realize a specific operating state of the contact device 100. In each of the contact receptacles 101, after insertion, the supplementary supply contact finger housing 34 is held in a positionally fixed relative to the housing 1 by the interaction of at least one of the springs 346, 348 with at least one groove 17, 18 formed by the respective contact receptacle 101 and by the interaction of at least one of the projections 347, 349 with at least one of the detent elements 16, 169. Figure 10aThe contact device 100 is in an operating state in which the phase selection contact finger is in its position corresponding to the second phase selection position and in which the supplementary supply contact fingers are in positions they occupy in the first operating state. Accordingly, the supplementary supply contact finger housing 34, and thus the supplementary supply contact fingers 3, 4, are arranged in a first contact receptacle 101. The phase selection contact finger 2 is guided in a phase selection contact finger guide so as to be displaceable in the transverse direction Y. In the Figure 10a In the operating state shown, the contact section 20 of the phase selection contact finger 2 is in the second phase selection position; however, it is freely movable to position its contact section 20 in the first or third phase selection position, which is shown in Figure 10ato the right of the first phase selection position. The phase selection contact finger 2 is reliably held in its position corresponding to the respective phase selection position by means of recesses 220 in the phase selection contact finger guide, to which a projection (not shown) on the contact finger housing of the phase selection contact finger 2 is assigned. In each position of the phase selection contact finger 2 assigned to a specific phase selection position, its projection is located in a recess 220 assigned to that phase selection position, so that a displacement of the phase selection contact finger 2 in the transverse direction Y to reach a different position of the phase selection contact finger 2 is only possible when the projection is removed from this recess 220. However, the phase selection contact finger 2 can be moved from the position shown in Figure 10aThe operating state shown can be moved in the transverse direction to each position corresponding to one of the phase selection positions, without requiring any movement of the supplementary supply contact fingers 3 and 4. Figure 10b It can be seen that in the Figures 10a and 10b In the operating state shown, the contact sections 30, 40 of the first and second supplementary supply contact fingers 3, 4 are offset in the transverse direction Y to the contact section 20 of the phase selection contact finger 2, and this is the case when the contact section 20 of the phase selection contact finger 2 is arranged in every possible phase selection position. Figure 10c Another operating state of the contact device 100 is shown, in which the supplementary supply contact fingers 3, 4 and thus also their common supplementary supply contact finger housing 34 are arranged in a second contact receptacle 101. While they are oriented with respect to the transverse direction Y in both operating states, which the Figures 10aAs shown in Figures 10c and 10c, respectively, their positions are offset from each other in the longitudinal direction X in the two operating states. By offsetting the supplementary supply contact fingers 3 and 4, they are in the position shown in Figure 10c. Figure 10c The operating state shown is arranged in the transverse direction Y next to the phase selection contact finger 2 and furthermore in the same longitudinal section as the phase selection contact finger 2, so that their presence blocks the phase selection contact finger 2 from moving in the transverse direction Y and thus from positioning the phase selection contact finger 2 in positions corresponding to the first or third phase selection position. As can be seen from the overall view of the Figures 10a , 10c , 12 and 13The first and second contact receptacles 101 each form differently designed fixing devices for the housing 1, which, however, are each configured to correspond to the fixing device of the supplementary supply contact finger housing 34. While the first contact receptacle 101 has a locking element 16 and grooves 17, 18, the second contact receptacle 101 has a locking element 169 formed on the underside of the housing 1 and grooves 17, 18. When the supplementary supply contact finger housing 34 is arranged in each of the contact receptacles 101, the corresponding design of the fixing device and the fixing device ensures a positionally fixed fixation of the supplementary supply contact fingers 3, 4 relative to the housing 1. From the Figures 10 and 12It is further evident that the housing has additional contact receptacles 101 with correspondingly designed fixing devices. Thus, further identically designed supplementary supply contact fingers can be inserted into these contact receptacles 101 to implement a configuration such as that found, for example, in the Figures 10a and 10cAs shown, with such a configuration of the contact device 100, the contact device 100 has two groups of contact fingers that are offset from each other in the longitudinal direction X. In the described embodiment, all contact fingers except the supplementary supply contact fingers 3, 4 are permanently assigned to one of the two groups. Depending on the selection of the first or second operating state, the supplementary supply contact fingers 3, 4 are assigned to either the first or the second group of contact fingers. In the described embodiment, each group of contact fingers is arranged only in exactly one of the mounting areas that the housing 1 of the present embodiment has and that are arranged side by side without overlap in the longitudinal direction X, and in this case spaced apart from each other.

[0052] Out of Figure 11 comprehensive the Figure 11a , 11b , 11c and 11dIt is evident that the supplementary supply contact fingers 3, 4 each have a contact group 7 and a section of the common supplementary supply contact finger housing 34. The contact group 7 comprises a contact element 75, a guide element 71, and a spring element 74. This contact group 7 is inserted into a section of the supplementary supply contact finger housing 34. The spring element 4 applies a vertically acting spring force to the guide element 71 and / or the contact element 75, and the guide element 71 serves to guide the contact element 75 in the supplementary supply contact finger housing 34. Providing such a contact group 7 is generally advantageous according to the invention. According to the invention, the supplementary supply contact fingers 3, 4 have such a contact group 7, and a plurality of further contact fingers of the contact device 100 also have an identically designed contact group 7.In the embodiment described here, and advantageously in general according to the invention, all contact fingers of the contact device 100 each have an identically designed contact group 7. The housing 1 has, as shown in . Figure 12 As can be seen, several further contact receptacles 103 are provided, into each of which a contact group 7 can be inserted, so that further contact fingers of the contact device 100 can be implemented in a particularly simple manner. The phase selection contact finger housing of the phase selection contact finger 2 also has a receptacle into which such a contact group 7 can be inserted. As can be seen from Figure 12As can be seen, the housing for forming the phase selection contact finger guide has an extended contact receptacle 102, which, together with a section, forms the second contact receptacle 101 described above. This is generally advantageous according to the invention, since it preferably achieves that both the phase selection contact finger guide and the second contact receptacle for the supplementary supply contact fingers 3, 4 can be provided by a common contour provided in the housing 1. The phase selection contact finger guide thus forms the second contact receptacle 101, and this second contact receptacle 101 is formed in a transverse area of ​​the phase selection contact finger guide in which the phase selection contact finger 2 is arranged in the first operating state. Reference symbol list

[0053] 1 Housing 2 Phase selection contact finger 3 First supplementary supply contact finger 4 Second supplementary supply contact finger 5 Locking element 6 Plate element 7 Contact group 10 Housing opening 11 Partial opening 12 Partial opening 13 Partial opening 14 Partial opening 15 Mounting element 16 Detent element 17 Groove 18 Groove 20 Contact section 21 Connecting line 22 Guide projection 23 Phase selection contact finger housing 24 Spring element 25 Contact element 26 Guide section 27 Contact interface 30 Contact section 31 Connecting line 34 Supplementary supply contact finger housing 40 Contact section 41 Connecting line 51 First locking element section 52 Second locking element section 53 Housing section 54 Housing section 55 Housing section 71 Guide element 74 Spring element 75 Contact element 100 Contact device 101 Contact point 102 Contact point 103 Contact point 169 Locking element 220 Recess 300 Conductor rail 346 Spring 347 Projection 348 Spring 349 Projection 400 Conductor wire 500 Locking element XL Longitudinal direction Y Transverse directionVertical direction

Claims

1. System for creating a luminaire, the system comprising a support rail elongated in a longitudinal direction (X), a mounting body elongated in the longitudinal direction (X) and having arranged thereon an electrical functional element, in particular a light module, and a contact means (100) which includes several contact holders spaced from each other in the transverse direction (Y) on an access side pointing in a vertical direction (Z), in which contact holders a respective contact is or can be received with its contact position fixed, wherein the contact means (100) comprises a housing (1) in which several contact fingers (2, 3, 4), each having a contact section (20, 30, 40), are arranged, one of which is designed as a phase selection contact finger (2) and another as a first supplementary supply contact finger (3, 4) and another, in particular, as a second supplementary supply contact finger (3, 4), wherein each of the contact fingers (2, 3, 4) is assigned to exactly one connection device of the electrical functional element and is electrically connected to it in order to supply the electrical functional element with power, wherein the phase selection contact finger (2) can be arranged in at least two, in particular at least three different positions inside the housing (1) with its contact section (20) arranged in a phase selection position uniquely assigned to its respective position, wherein each of the phase selection positions is respectively arranged at the transverse level of exactly one contact position assigned to the respective phase selection position and in a first operating state, the contact section (20) of the phase selection contact finger (2) is arranged in a first of the phase selection positions and the contact section (30, 40) of the first supplementary supply contact finger (3, 4) and in particular the contact sections (30, 40) of the supplementary supply contact fingers (3, 4) is(are) arranged at a transverse level of a contact position arranged outside the contact position assigned to the phase selection positions, wherein the first supplementary supply contact finger (3, 4) can be arranged in at least two different positions inside the housing (1) with its contact section (30, 40) arranged in a supplementary contact position uniquely assigned to its respective position, characterized in that in a second operating state, the contact section (20) of the phase selection contact finger (2) is arranged in a second of the phase selection positions and the first supplementary supply contact finger (3) is arranged in a position other than in the first operating state and blocks an arrangement of the phase selection contact finger (2) in its position assigned to the first phase selection position.

2. System according to claim 1, characterized in that the second supplementary supply contact finger (4) can be arranged in at least two different positions inside the housing (1) with its contact section (40) arranged in a supplementary contact position uniquely assigned to its respective position, wherein in the second operating state, the second supplementary supply contact finger (4) is arranged in a position other than in the first operating state and blocks an arrangement of the phase selection contact finger (2) in its position assigned to the third phase selection position.

3. System according to any of the preceding claims, characterized in that the contact section (20) of the phase selection contact finger (2) is displaceable between the different phase selection positions while maintaining an electrical connection with the connection device assigned to it of the electrical functional element and / or the contact section (30, 40) of the first and in particular the contact section (30, 40) of the second supplementary supply contact finger (3, 4) is displaceable between its position in the first operating state and its position in the second operating state while maintaining its electrical connection with the connection device assigned to it of the electrical functional element.

4. System according to any of the preceding claims, characterized in that the contact sections (30, 40) of the supplementary supply contact fingers (3, 4) are spaced from each other by a constant transverse distance in any operating state, wherein in particular the supplementary supply contact fingers (3, 4) are arranged next to each other and rigidly connected to each other in the transverse direction (Y) so that the supplementary supply contact fingers (3, 4) can be jointly displaced while maintaining their arrangement relative to each other along the transverse direction (Y).

5. System according to any of the preceding claims, characterized in that the contact section (30, 40) of the first supplementary supply contact finger (3, 4), in particular the contact sections (30, 40) of the supplementary supply contact fingers (3, 4) is(are) spaced from the contact section (20) of the phase selection contact finger (2) in the longitudinal direction (X), at least in the first operating state, in particular in each of the operating states.

6. System according to any of the preceding claims, characterized in that in the first operating state and in particular also in the second operating state, at least one of the supplementary supply contact fingers (3, 4) is arranged with its contact section in the transverse direction (Y) between two of the phase selection positions.

7. System according to any of the preceding claims, characterized in that the housing (1) has two retaining regions arranged next to each other in the longitudinal direction (X) without overlapping, wherein in each of the operating states, the contact section (20) of the phase selection contact finger (2) is arranged in a first of the retaining regions and in the first operating state, at least the contact section (30, 40) of the first supplementary supply contact finger (3, 4), in particular the contact sections (30, 40) of the supplementary supply contact fingers (3, 4) is(are) arranged in a second of the retaining regions, wherein in particular the contact means (100) comprises a wrong plug protection device arranged between the first and the second retaining region which is configured to prevent the contact means from being plugged onto the contact device in order to establish one of the operating states if the contact means (100) is not correctly aligned with the contact device.

8. System according to any of the preceding claims, characterized in that the housing (1) has a phase selection contact finger guide in which the phase selection contact finger (2) is guided in a displaceable, in particular slidable manner in the transverse direction (Y) relative to the housing (1) for the arrangement of its contact section (20) in the various phase selection positions, wherein in particular the phase selection contact finger guide is configured such that it enables positioning of the phase selection contact finger (2) in the housing (1) only in such positions in which the contact section (20) of the phase selection contact finger (2) is arranged in exactly one of the phase selection positions, wherein in particular the phase selection contact finger guide in the first operating state and / or in the second operating state extends in the transverse direction (Y) over and beyond at least one of the supplementary supply contact fingers (3, 4).

9. System according to any of the preceding claims, characterized in that the housing (1) has a supplementary supply contact finger guide in which at least the first supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4) is(are) guided in a displaceable, in particular slidable manner relative to the housing (1) for the arrangement in its(their) various positions provided in the first and second operating states, wherein in particular at least the first supplementary supply contact finger (3, 4) can be displaced relative to the housing (1) in the transverse direction (Y) and / or in the longitudinal direction (X) for the arrangement in its various positions provided in the first and second operating states.

10. System according to any of the preceding claims, characterized in that the housing (1) has a locking device which in an initial position prevents an arrangement of each supplementary supply contact finger (3, 4) with its contact section (30, 40) at the level of one of the phase selection positions for establishing the second operating state, wherein the locking device can be brought from the initial position into a release position in which an arrangement of at least the first of the supplementary supply contact fingers (3, 4), in particular the supplementary supply contact fingers (3, 4), with its(their) contact section (30, 40) at the level of one of the phase selection positions is enabled for establishing the second operating state, wherein in particular the locking device comprises a blocking element (500) which in the initial position is connected to a housing wall of the housing (1) and which can be detached from the housing wall in order to achieve the releasing position starting from the initial position, wherein in particular the blocking element (500) is designed in the form of a plate.

11. System according to claim 10, characterized in that the locking device comprises a locking element (5) arranged along the longitudinal direction (X) between the first supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4), and the phase selection contact finger (2), which locking element (5) comprises a first locking element section (51) pointing to the phase selection contact finger (2) and a second locking element section (52) pointing to the supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4), wherein in the first operating state, the locking element (5) is in a locking position and the first locking element section (51) is in contact with the phase selection contact finger (2) and the second locking element section (52) prevents positioning of each of the supplementary supply contact fingers (3, 4) with its contact section (30, 40) at the transverse level of any phase selection position and wherein in the second operating state, the locking element (5) is in a second locking position and the second locking element section (52) is in contact with at least the first supplementary supply contact finger (3, 4) and the first locking element section (51) prevents positioning of the phase selection contact finger (2) with its contact section (20) in the first phase selection position, in particular in any other than the second phase selection position.

12. System according to claim 11, characterized in that the locking element (5) protrudes into a first locking region in its first locking position within which at least the first supplementary supply contact finger (3, 4) is arranged in the second operating state and protrudes into a second locking region in its second locking position within which the phase selection contact finger (3, 4) protrudes when its contact section (20) is arranged in a phase selection position different from the second phase selection position.

13. System according to any of claims 11 or 12, characterized in that the locking element (5) is guided in a sliding guide of the housing (1) in a displaceable manner in the longitudinal direction (X), wherein in particular the housing (1) and the locking element (5) have mutually corresponding latching devices (19, 501) by means of which the locking element (5) is respectively latched with housing (1) in the first and in the second operating state while restricting a relative movement of the locking element (5) relative to the housing (1) in the longitudinal direction (X).

14. System according to any of claims 11 to 13, characterized in that the second locking element section (52) is configured as an actuating section having an actuating surface beveled towards the longitudinal direction (X) and towards the vertical direction (Z), wherein in particular the second locking element section (52) has two sub-sections spaced from each other in the transverse direction (Y), which sub-sections each constitute a part of the beveled actuating surface, wherein in particular in the second operating state, a section of the supplementary supply contact finger housing of the first and / or second supplementary supply contact finger (3, 4) is arranged in the transverse direction (Y) between the sub-sections.

15. System according to any of the preceding claims, characterized in that the contact positions respectively assigned to one of the phase selection positions are spaced from each other along the transverse direction (Y) by a distance which is smaller than an extension of the phase selection contact finger (2) and or an extension of the first supplementary supply contact finger (3, 4) along the transverse direction (Y).

16. System according to any of the preceding claims, characterized in that the housing (1) has several mutually offset contact receptacles (101) which are designed corresponding to the first supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4), into which contact receptacles the first supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4) can be plugged in a releasable manner in order to achieve the respective operating state.

17. System according to any of the preceding claims, characterized in that at least the first supplementary supply contact finger (3, 4), in particular the supplementary supply contact fingers (3, 4) is(are) arranged in a first contact receptacle (101) of housing (1) assigned to it when in the first operating state and is(are) arranged in a second contact receptacle (101) of housing (1) when in the second operating state, wherein the first and / or second supplementary supply contact finger (3, 4), when arranged in the second contact receptacle (101), extends over a same length section within which the phase selection contact finger extends in the second operating state and is arranged next to the phase selection contact finger (2) in the transverse direction (Y) in the second operating state, wherein in particular the first and the second contact receptacles (101) extend over and beyond a same transverse region.

18. System according to claim 17, characterized in that the second contact receptacle (101) and / or at least one of the supplementary supply contact fingers (3, 4) extend in the transverse direction (Y) at the level of one of the positions of the phase selection contact finger (2) which are assigned to the first or the second phase selection position.

19. System according to any of the preceding claims, characterized in that the contact fingers (2, 3, 4) each have a connection interface, wherein the housing (1) has a first housing opening (10) pointing to the first connection side through which the phase selection contact finger (2) is electrically connected to the connection device assigned to it via its connection interface, wherein the housing (1) has a second housing opening pointing to the second connection side through which the first supplementary supply contact finger, in particular the supplementary supply contact fingers (3, 4) is(are) each electrically connected to the connection devices respectively assigned to it(them), wherein in particular the locking device in its initial position limits an extension of the second housing opening, in particular in the transverse direction (Y).

20. System according to any of the preceding claims, characterized in that that the contact device (100) comprises a first and a second group of contact fingers (2, 3, 4), wherein in the first and in the second operating state, the first group is offset in the longitudinal direction (X) from the second group and at least one contact finger (2, 3, 4) of the second group is arranged between a plurality of contact fingers (2, 3, 4) of the second group in reference to the transverse direction.

21. System according to any of the preceding claims, characterized in that the system comprises two contact devices (300), wherein in both contact devices a respective contact holder is provided at the same three transverse positions in each case, wherein each of these three contact holders of each of the contact devices is assigned to exactly one of the three phase selection positions and a contact is respectively received in these contact holders, wherein a further contact holder is provided in both contact devices at a same transverse position in each case, in particular a further contact holder is provided at the same two further transverse positions in each case, which are offset from all phase selection positions in the transverse direction (Y), wherein in a first of the two contact devices (300) a respective contact is received in the further contact holders and in a second of the two contact devices (300) the further contact holders are free, wherein in the first operating state of the system, the first contact device is fixed to the support rail and the contact section of the first supplementary supply contact finger (3, 4) bears against the contact arranged in the further contact holder, in particular the contact sections (20, 30, 40) of the supplementary supply contact fingers (3, 4) bear against the contacts arranged in the further contact holders, and the phase selection contact finger (3, 4) bears against a first of the contacts received in the contact holders assigned to the phase selection positions, wherein in the second operating state of the system, the second contact device is fixed to the support rail and the contact section (30, 40) of the first supplementary supply contact finger (3, 4) bears against the first of the contacts received in the contact holders assigned to the phase selection positions, in particular the contact sections (20, 30, 40) of the supplementary supply contact fingers (3, 4) bear against the first and a third of the contacts received in the contact holders assigned to the phase selection positions, and the phase selection contact finger (3, 4) bears against a second of the contacts received in the contact holders assigned to the phase selection positions.

22. System according to any of the preceding claims, characterized in that the contacts are designed as lead wires (400) and the contact device, in particular the first and / or the second contact device is designed as a busbar (300) elongated in the longitudinal direction (X) which comprises several channels arranged next to each other along the transverse direction (Y) and open to an access side, wherein the contact holders are designed as lead wire holders for receiving a respective one of the lead wires (400) with its contact position fixed.

23. Luminaire comprising a system according to any of claims 1 to 22.