Mounting element for mounting an electrical device, arrangement with a device adapter and a mounting element, and busbar system with an arrangement

Abstract

The invention relates to a mounting element (1) for mounting an electrical device (100), wherein the mounting element (1) has a fastening section (3) for an electrical device (100) and wherein the fastening section (3) has a plurality of first mounting levels (E1). A first of the plurality of first mounting levels (E1) is spaced a distance (d) in the vertical direction (H) of the mounting element (1) from a second of the plurality of first mounting levels (E1). The invention further relates to an arrangement with a device adapter (2) and a mounting element (1) according to the invention, as well as a busbar system with an arrangement according to the invention.

Description

[0001] The invention relates to a mounting element with a fastening section for attaching electrical devices. The mounting element can be placed on a device adapter such that a mounting plane of the fastening section is spaced vertically apart from a mounting plane of the device adapter. Such a mounting element is disclosed, for example, in EP 2 555 356 A1.

[0002] DE 10 2024 132 715 B3 discloses a further mounting element for the installation of an electrical device, in which the mounting section has a plurality of first mounting levels realized by stepless height adjustability of the mounting section, wherein a first of the plurality of first mounting levels has a distance in the height direction of the mounting element to a second of the plurality of first mounting levels. Similar arrangements are also described in DE 10 2009 023 802 B4 and in DE 10 2004 043 469 B4.

[0003] In the field of electrical installations and mounting systems, it is common practice to mount various electrical devices, such as motor starters, contactors, and other control components, in control cabinets or on busbar systems. These systems must be flexible and adaptable to meet varying requirements and space constraints. Common systems typically include rigid mounting rails or adapters that dictate fixed device positioning. This can lead to problems when the device layout needs to be changed or additional devices added, as the fixed positions make flexible adjustments difficult.

[0004] According to known systems, such as those described in EP 2 555 356 A1, device adapters are used to mount electrical equipment on busbars. However, these adapters offer only limited possibilities for height adjustment and variable positioning of the equipment along the busbar. This can lead to limitations in the optimal use of available space and in adapting to different equipment heights. Furthermore, many of these systems require complex manual adjustments and tools to securely fasten and align the equipment.

[0005] The object of the invention is therefore to provide a mounting element that allows for flexible and efficient adaptation to different installation situations and device configurations, thereby achieving improved compatibility, simplified assembly and increased versatility in use.

[0006] This problem is solved by a mounting element with the features of claim 1. Dependent claim 12 relates to an arrangement and dependent claim 17 to a busbar system.

[0007] Accordingly, a mounting element for mounting an electrical device is provided, wherein the mounting element has a fastening section for an electrical device and the fastening section has a plurality of first mounting levels. A first of the plurality of first mounting levels E1 is spaced at a distance in the vertical direction of the mounting element from a second of the plurality of first mounting levels.

[0008] The term "mounting level" refers to a surface or zone on which the electrical device can be attached. A plurality of first mounting levels refers to at least two, thus enabling the electrical device to be mounted at at least two different heights.

[0009] The design with multiple, vertically offset mounting levels allows for flexible positioning of the electrical device vertically, relative to the mounting element's longitudinal direction. This offers the advantage of improved adaptability to various installation situations, accommodating different device types, even from different manufacturers or product lines, or varying installation heights. A further advantage lies in simplified installation, as the user can select the appropriate mounting level as needed without having to replace or adjust the mounting element. This allows for tool-free mounting of the electrical device at different heights.

[0010] The distance between the majority of the first mounting levels can be identical for all first mounting levels or it can vary. This allows the heights of the individual mounting levels to be advantageously designed for specific requirements.

[0011] Preferably, the majority of the first mounting planes are designed as parallel planes, which maintain a distance along their orthogonal lines. The term "parallel planes" describes geometric surfaces that maintain the same distance from each other at all points and never intersect. The orthogonal line is the direction perpendicular to these planes, which in this case typically corresponds to the vertical direction of the mounting element.

[0012] This arrangement enables precise and repeatable positioning of the electrical devices to be mounted, as each first mounting level provides a defined reference height and the first mounting levels are identically aligned.

[0013] The fastening section of the mounting element is designed to be wedge-shaped. The term "wedge-shaped" refers to a geometric design in which the fastening section has a tapered form, typically characterized by a sloping or inclined surface. This design results in the fastening section having a different thickness or width in one direction—for example, in the vertical direction of the mounting element—so that one side of the fastening section is thicker or wider than the opposite side.

[0014] For example, the first mounting levels can be arranged on the inclined surface of the mounting element. A first mounting level with a low mounting height can thus be located at a thinner end of the mounting element, while a first mounting level with a higher mounting height can be located at a thicker end.

[0015] Particularly when a constant height distance is maintained between the first mounting elements, the first mounting levels can also be spaced equally apart in a longitudinal direction of the mounting element.

[0016] The angle of the wedge shape can be less than 25°, preferably less than 10°, and most preferably less than 5°.

[0017] Furthermore, the majority of the first mounting levels can be formed by steps in the fastening section. A step here refers to a ledge or offset in the material of the fastening section, which allows for different levels at varying heights. The mounting element can therefore be designed in a stepped manner.

[0018] This design means that the first mounting levels are not simply defined by separate, flat areas, but rather feature a stop. This stop can be, for example, a right-angled or beveled edge that creates a transition from one mounting level to the next. This design of the mounting levels with steps enables a particularly stable and positive-locking connection of the electrical device to the mounting element, as the stops serve as additional contact and support surfaces. This facilitates the positioning and fixing of the electrical device at different heights.

[0019] According to a further development, the mounting element has a lower part that allows it to be attached to a device adapter, with the lower part being variably lockable in one longitudinal direction of the device adapter. The term "lower part" refers to a structural section of the mounting element that serves to establish a mechanical connection between the mounting element and the device adapter. When the mounting element is installed, the lower part faces the device adapter, while the upper part, the fastening section, faces the electrical device to be attached.

[0020] The ability to place the base onto the device adapter means that the mounting element can be positioned in a designated location on the adapter, facilitating easy and secure installation of the electrical device. Variable longitudinal locking describes a mechanism by which the base can be fixed in different positions along the longitudinal axis of the device adapter. This can be achieved, for example, by a locking or clamping device, a rail with multiple locking positions, or a similar means that allows for flexible adjustment of the mounting element's position on the device adapter.

[0021] This design achieves improved adaptability to different installation situations and device configurations, as the mounting element is not limited to a fixed position, but can be moved along the device adapter as needed and securely fixed there.

[0022] The lower part of the mounting element can have a locking lever, which allows the lower part to be released and locked in the longitudinal direction of the device adapter. The term "locking lever" refers to a mechanical component that creates a positive connection between the lower part and the device adapter and enables this connection to be released or locked by targeted actuation. This release and locking can be performed without tools. The longitudinal direction refers to the direction of expansion of the device adapter, along which the lower part can be moved or positioned.

[0023] The releasable locking mechanism using the locking lever ensures a flexible yet secure attachment of the lower part to the mounting element, allowing the lower part to be easily detached and reattached as needed. This significantly simplifies the installation and removal of the electrical device, as the user can position and secure the lower part without additional tools or complicated procedures.

[0024] Preferably, the lower part has two locking levers that engage in opposing rails of the device adapter. This allows the mounting element to be locked on both sides, preventing, for example, tilting or slippage of the mounting element relative to the device adapter.

[0025] Preferably, the locking lever can be elastically deformable. For example, it can be provided that the locking lever, in a locking position (which may correspond to a rest position), makes contact with the device adapter at least partially, and is locked in the device adapter. By moving the locking lever, for example by tilting or pivoting it, it can be moved into a release position, so that the locking lever no longer makes contact with the device adapter, at least partially, thus releasing the locking mechanism and allowing the mounting element to be positioned relative to the device adapter.

[0026] Furthermore, the locking lever can have a detent point that, for releasable locking with the device adapter, is designed to complement recesses in the device adapter. The detent point is a specially shaped structure on the locking lever, designed to engage positively or non-positively with a corresponding recess on the device adapter. The recesses on the device adapter are arranged and dimensioned to allow precise engagement of the detent point.

[0027] This design creates a detachable connection between the mounting element and the device adapter, based on a mechanical interaction: The locking lever can be moved by a tilting or pivoting movement into a position in which the locking point engages in the recess of the device adapter, thus creating a detachable connection.

[0028] Preferably, the mounting element comprises a plug-in element, the plug-in element having a clamping surface for holding the electrical device. The plug-in element provides a means for mechanical coupling between the mounting element and the electrical device to be mounted, and in particular enables tool-free or at least simplified attachment of the device to the mounting element. The clamping surface of the plug-in element is designed to receive the electrical device in a form-fit or force-fit manner and hold it in a defined position.

[0029] Providing such a clamping surface ensures reliable, and in particular tool-free, fixation of the electrical device. The clamping surface can, for example, be elastic, allowing it to adapt to different housing shapes or sizes of the electrical device and / or preventing damage such as scratching of the housing surface. Furthermore, the clamping surface can be a flat surface or have a textured surface that can, for example, engage with a complementary texture on the device.

[0030] The plug-in element can be height-adjustable within the mounting element, allowing for particularly flexible adaptation to different installation situations and device configurations. This height adjustability enables the mounting of devices of varying heights. The height adjustability can be achieved, for example, through a guide, a locking mechanism, or a screw connection, allowing the plug-in element to be fixed or repositioned at different heights.

[0031] Furthermore, the plug-in element can have a locking mechanism that secures it in the mounting element in a form-fitting manner, particularly with regard to height adjustment. The locking mechanism is a mechanical device that, when the plug-in element is inserted into the mounting element, engages in a corresponding recess or locking structure, thereby creating a positive connection. In this context, positive locking means that the plug-in element is secured against unintentional disengagement by the locking mechanism, as the geometry of the locking structure prevents displacement or removal unless the locking mechanism is intentionally released. The locking mechanism can be designed, for example, as a spring-loaded locking arm, a snap hook, or another suitable locking geometry that automatically engages when the components are assembled and can be released again if necessary.

[0032] Furthermore, the height-adjustable design of the locking mechanism allows the plug-in element to be fixed in different height positions within the mounting element. This height adjustability can be achieved, for example, through multiple locking positions along a guide within the mounting element, enabling the plug-in element to be moved and locked in discrete increments.

[0033] The mounting element can also have multiple slots into which the plug-in element can be received. The term "slot" refers to a specially shaped receptacle or opening in the mounting element, designed so that the plug-in element can be inserted securely and releasably.

[0034] The multiple slots allow the connector element to be positioned in various locations, so that, depending on the electrical device and the selected first mounting level, the connector element can be positioned in a suitable slot for clamping the device. In particular, it can be provided that at least one of the slots is located in one of the first mounting levels. Furthermore, the slots can have at least one projection that engages with the connector element, especially with a locking mechanism of the connector element, to create a positive and / or force-fit connection between the slot and the connector element.

[0035] In one embodiment, the mounting element comprises a slide with which the mounting element is placed on a rail of the device adapter that is complementary to the slide and adjustable along its longitudinal direction. The term "slide" here refers to a component that serves as a guide element and establishes a sliding or movable connection between the mounting element and the rail of the device adapter. The rail, in turn, is designed to ensure a positive-locking and secure guidance of the slide, with the geometry of the rail being matched to that of the slide. This design enables targeted and controlled movement of the mounting element along a predetermined longitudinal direction.

[0036] The carriage can have a projection on one side facing the rail, which engages in one or more complementary recesses, such as a snap-fit ​​connector, in the rail. This allows the mounting element to be moved and positioned precisely on the device adapter.

[0037] In particular, a lower part of the mounting element can encompass the slide. Preferably, after the mounting element is placed on the device adapter, the slide is arranged on a first side, for example, an outer side, of the rail, and a locking lever of the mounting element is arranged on a second side, for example, an inner side, of the rail. In a locking position, the locking lever clamps the rail between the locking lever itself and the slide, thus fixing the position of the mounting element on the rail. In a release position, however, contact between the locking element and the rail is at least partially released, so that the mounting element can be moved along the rail by means of the slide.

[0038] According to a further aspect of the invention, an arrangement is provided comprising a device adapter for mounting an electrical device on a busbar system and a mounting element according to the invention for mounting the electrical device or another electrical device on one of the first mounting levels. The majority of the first mounting levels are spaced apart from a second mounting level formed by the device adapter in the vertical direction of the mounting element. An advantage of such an arrangement lies in the increased modularity and variability in the mounting of electrical devices, since the different mounting levels and their defined distances allow for individual adaptation to various device types and sizes.

[0039] The device adapter serves as an interface between the electrical device and the busbar system, enabling mechanical and, if necessary, electrical coupling. The second mounting level of the device adapter itself provides an additional mounting or contact surface for electrical devices. By creating a vertical separation between the first mounting levels of the mounting element and the second mounting level formed by the device adapter, an additional option for the vertical staggering and arrangement of multiple electrical devices within a compact assembly is provided. This allows for the flexible and space-saving integration of various electrical devices or functional units at different levels, which is particularly advantageous in the implementation of complex switchgear or distribution panels.

[0040] Preferably, the majority of first mounting planes and the second mounting plane are designed as parallel planes which have a distance along their orthogonal sides.

[0041] In one embodiment, the device adapter can have a rail onto which the mounting element is placed and adjustable along a longitudinal direction of the device adapter. The mounting element, in conjunction with the rail of the device adapter, can have a plurality of locking positions at which the mounting element can be locked relative to the rail. Alternatively or additionally, the rail can have a plurality of recesses along its longitudinal direction for locking the mounting element, the recesses preferably being equidistant from one another.

[0042] Another aspect of the invention relates to a busbar system with an arrangement according to the invention comprising several power busbars, wherein the device adapter is fixed to the busbar system and the mounting element is fixed to the device adapter, wherein a first device, preferably an electric motor starter, is mounted on a second mounting level of the device adapter and the first device or a second device, preferably a contactor, is mounted on one of the first mounting levels of the mounting section.

[0043] Providing multiple mounting levels enables space-saving and organized installation of various devices at different levels, which is particularly advantageous in compact switchgear or distribution cabinets. The ability to mount different devices on both the second mounting level of the device adapter and the first mounting levels of the mounting section allows for flexible adaptation to various applications and system requirements.

[0044] The details and advantages disclosed for the mounting element according to the invention are transferable and applicable to the arrangement and busbar system according to the invention, and vice versa.

[0045] Further details of the invention are explained with reference to the figures below. The embodiments shown in the figures have features that, individually or in any combination, can be suitable for realizing embodiments of the invention. These show: Fig. 1 an embodiment of an arrangement according to the invention comprising a mounting element and a device adapter; Fig. 2 the embodiment of an arrangement according to the invention Fig. 1 in a sectional view; Fig. 3 another embodiment of an arrangement according to the invention with a mounting element and a device adapter in a top view; Fig. 4 the embodiment of an arrangement according to the invention Fig. 3 in a view from below; Fig. 5 an embodiment of a mounting element according to the invention in a perspective view; and Fig. 6 the embodiment of a mounting element according to the invention made of Fig. 5 in a side view.

[0046] Fig. Figure 1 shows an arrangement with a device adapter 2 for mounting an electrical device 100 on a busbar system and a mounting element 1 for mounting the electrical device 100. Fig. 1 shows the arrangement in a side view, Fig. 2 in a sectional view. The electrical device 100 is attached to the mounting element 1. The Fig. 3 and Fig. Figure 4 shows the arrangement without the electrical device in a top and bottom view. The mounting element 1 is in the Fig. 5 in a perspective view and in the Fig. 6 shown in a side view.

[0047] The in the Fig. 1, Fig. 2, Fig. 3 to Fig. The arrangement shown in Figure 4 can, for example, be used in a busbar system comprising several power busbars. The device adapter 2 can then be fixed to the busbar system, and the mounting element 1 to the device adapter 2. A first device 100, preferably an electric motor starter, can be mounted on a second mounting level E2 of the device adapter 2, and the first device 100 or a second device, preferably a contactor, can be mounted on one of the first mounting levels E1 of the mounting element 1. Since the first mounting levels E1 of the mounting element 1 are spaced apart from the second mounting level E2 formed by the device adapter 2 in the vertical direction of the mounting element 1, the first device 100 or another device can be mounted at different heights. This allows for a flexible arrangement of devices in the busbar system.

[0048] As especially in the Fig. 5 and Fig. As shown in Figure 6, the mounting element 1 has a mounting section 3 for an electrical device 100, wherein the mounting section 3 has a plurality of first mounting levels E1 and wherein the first mounting levels E1 are each spaced apart from each other by a distance d in the vertical direction H of the mounting element 1. Depending on the design of the device 100 to be mounted and depending on a desired positioning, the device can thus be arranged on a suitable first mounting level E1. In the case of the Fig. 1 and Fig. In the version shown in 2, the device 100 is mounted, for example, on the second mounting level E1 from below.

[0049] Due to the multiple first mounting levels E1 and the vertical spacing of the first mounting levels E1 from each other, the electrical device 100 can be arranged at different heights without tooling and without adjusting the mounting element 1.

[0050] The majority of the first assembly levels E1 and the second assembly level E2 are parallel planes spaced apart along their orthogonal planes. There is a constant distance d between the first assembly levels E1, and a slightly larger distance between the lowest first assembly level E1 and the second assembly level.

[0051] As particularly in Fig. As shown in Figure 6, the fastening section 3 of the mounting element 1 is wedge-shaped. The inclined upper surface of the wedge shape has steps that form the majority of the first mounting levels E1. This stepped design of the fastening section 3 allows the electrical device 100 to be positioned precisely on the mounting element 1, since the angled transitions between the first mounting levels E1 can serve as stops for the electrical device 100.

[0052] To secure the electrical device 100, the mounting element 1 comprises a plug-in element 8, the plug-in element 8 having a clamping surface 9 for holding the electrical device 100. As shown in the Fig. 1 and Fig. As can be seen in Figure 2, the electrical device 100 can be held securely between the clamping surface 9 and the first mounting level 1. For this purpose, the plug-in element 8 has a vertical section by which it is received in the mounting element 1, and a horizontal section on the underside of which, facing the electrical device 100, the clamping surface 9 is formed.

[0053] The plug-in element 8 is height-adjustable and is held in the mounting element 1. It features a locking mechanism 10 that secures the plug-in element 8 to the mounting element 1. To position the electrical device 100, the plug-in element 8 can therefore be pulled upwards out of the mounting element 1 without tools, allowing the electrical device 100 to be placed on a first mounting level E1. For fastening, the plug-in element 8 can then be reinserted into the mounting element 1 and locked in place by the locking mechanism 10, thus securely holding the electrical device 100.

[0054] The mounting element 1 has a plurality of slots 11 in which the plug-in element 8 can be received. The slots 11 are designed as continuous slots in the first mounting levels E1, with projections on their short inner sides that engage positively in the locking mechanism 10 of the plug-in element 8. This allows for tool-free adjustment of the plug-in element 8 in the vertical direction H, while the locking mechanism 10 and the complementary projections prevent the plug-in element 8 from shifting unintentionally.

[0055] The device adapter 2 has two rails 14 onto which the mounting element 1 is placed and adjustable along the longitudinal direction L. The mounting element 1 has a slide 13 by which it is placed on the rails 14 of the device adapter 1 and adjusted along the longitudinal direction L. For defined adjustment, the slide 13 is formed on each side of the mounting element 1 by two clamp-like leg elements. When the mounting element 1 is placed on the rails, the vertical sections of the leg elements are arranged on the outer surfaces of the rails 14. An upper, horizontal section of the leg elements rests on the upper surface of the rails 14, and a lower, horizontal section of the leg elements engages behind the rails 14. The lower, horizontal sections also have at least one projection facing the rails 14, which can engage in a snap-fit ​​connector 15.This allows the mounting element 1 to be positioned on the rails 14 without tools, while the positive locking mechanism between the projections of the leg elements and the snap connector 15 prevents unintentional adjustment. Preferably, both rails 14 have the snap connector 15 on their outer sides. Furthermore, each leg element preferably has such a projection.

[0056] The mounting element 1, in conjunction with the rails 14 of the device adapter 2, has a plurality of locking positions at which the mounting element 1 can be locked relative to the rails 14. The rails 14 have a plurality of recesses 17 along the longitudinal direction L, designed as through holes, for locking the mounting element 1. The recesses 17 are preferably equidistant from one another.

[0057] The mounting element 1 in turn has a lower part 5 with which the mounting element 1 can be placed on the device adapter 2, the lower part 5 being variably lockable in the longitudinal direction L of the device adapter 2. Here, the lower part 5 also includes the slide 13 with the leg elements, and the mounting element 1 can be placed on the rails 14 of the device adapter 2 by means of the upper, horizontal sections of the leg elements.

[0058] For variable locking, the lower part 5 has two locking levers 6, so that the lower part 5 can be detachably locked in the longitudinal direction L of the device adapter 2 via the locking levers 6. As particularly shown in the Fig. 1 and Fig. As shown in Figure 4, each locking lever 6 has two locking points 7 on a side facing the rails 14, which are designed to allow releasable locking with the device adapter 2 in a manner complementary to the recesses 17 of the device adapter 2.

[0059] This shows Fig. 1 and Fig. 4. The locking levers 6 are in a locking position. In this position, the outer surfaces of the locking levers 6 are predominantly in contact with the inner surface of the rails 14, and the locking points 7 can engage positively in the recesses 17. The mounting element 1 is thus secured against displacement in the locking position shown. The illustrated design secures the mounting element 1 on both sides of the rails 14: on the inner surface by the locking levers 6, and on the outer surface by the leg elements of the slide 13.

[0060] To reposition the mounting element 1, the locking levers 6 can be moved into a release position, in this case by moving them towards the central axis of the mounting element 1. This at least partially releases the contact between the locking lever 6 and the inside of the rail 14, and the locking points 7 no longer engage in the recesses 17. The mounting element 1 is thus released and can be moved along the rails 14. Preferably, the locking levers 6 can be designed to be elastically deformable, so that they automatically assume the locking position without being actuated.

[0061] The features of the invention disclosed in the foregoing description, in the drawings and in the claims may be essential for the realization of the invention both individually and in any combination, the scope of protection being determined by the claims. Reference symbol list 1 mounting element 2 device adapters 3 Mounting section 5 lower part 6 locking levers 7 Locking point 8 plug-in elements 9 clamping surface 10 Locking 11 slots 13 sleds 14 rail 15 snap connectors 17 Exclusion 100 Electrical appliance d distance E1 First assembly levels H Altitude L Longitudinal direction

Claims

Mounting element (1) for mounting an electrical device (100), wherein the mounting element (1) has a fastening section (3) for an electrical device (100), wherein the fastening section (3) has a plurality of first mounting levels (E1) and wherein a first of the plurality of first mounting levels (E1) has a distance (d) in the height direction (H) of the mounting element (1) to a second of the plurality of first mounting levels (E1), characterized in that the fastening section (3) is wedge-shaped. Mounting element (1) according to claim 1, wherein the plurality of first mounting planes (E1) are parallel planes which have a distance (d) along their orthogonal planes. Mounting element (1) according to one of the preceding claims, wherein the plurality of first mounting levels (E1) is formed by steps of the fastening section (3). Mounting element (1) according to one of the preceding claims, comprising a lower part (5) with which the mounting element (1) can be placed on a device adapter (2), wherein the lower part (5) can be variably locked in a longitudinal direction (L) of the device adapter (2). Mounting element (1) according to claim 4, wherein the lower part (5) has a locking lever (6), wherein the lower part (5) can be detachably locked in the longitudinal direction (L) of the device adapter (2) via the locking lever (6). Mounting element (1) according to claim 5, wherein the locking lever (6) has a locking point (7) which is designed to allow releasable locking with the device adapter (2) in a manner complementary to recesses (17) of the device adapter (2). Mounting element (1) according to one of the preceding claims, comprising a plug-in element (8), wherein the plug-in element (8) has a clamping surface (9) for holding the electrical device (100). Mounting element (1) according to claim 7, wherein the plug-in element (8) is height-adjustable in the mounting element (1). Mounting element (1) according to claim 7 or 8, wherein the plug-in element (8) has a locking mechanism (10) by means of which the plug-in element (8) is received in the mounting element (1) in a form-fitting manner, in particular in a height-adjustable manner. Mounting element (1) according to one of claims 7 to 9, comprising a plurality of slots (11) in which the plugging element (8) can be received. Mounting element (1) according to one of the preceding claims, comprising a slide (13) with which the mounting element (1) is placed on a rail (14) of a device adapter (2) complementary to the slide (13) and is adjustable along a longitudinal direction (L) of the device adapter (2). Arrangement comprising a device adapter (2) for mounting an electrical device (100) on a busbar system and a mounting element (1) according to one of the preceding claims for mounting the electrical device (100) or another electrical device on one of the first mounting levels (E1), wherein the plurality of first mounting levels (E1) to a second mounting level (E2) formed by the device adapter (2) is spaced at a distance in the vertical direction of the mounting element (1). Arrangement according to claim 12, wherein the plurality of first mounting planes (E1) and the second mounting plane (E2) are parallel planes which have a distance along their orthogonal sides. Arrangement according to claim 12 or 13, wherein the device adapter (2) has a rail (14) on which the mounting element (1) is placed and on which the mounting element (1) is adjustable along a longitudinal direction (L) of the device adapter (2). Arrangement according to claim 14, wherein the mounting element (1) in conjunction with the rail (14) of the device adapter (2) has a plurality of locking positions at which the mounting element (1) can be locked in relation to the rail (14). Arrangement according to claim 14 or 15, wherein the rail (14) has a plurality of recesses (17) along the longitudinal direction (L) for locking the mounting element (1), wherein the recesses (17) are preferably equally spaced apart from each other. Busbar system with an arrangement according to one of claims 12 to 16, comprising several current busbars, wherein the device adapter (2) is fixed to the busbar system and the mounting element (1) is fixed to the device adapter (2), wherein a first device (100), preferably an electric motor starter, is mounted on the second mounting level (E2) of the device adapter (2) and the first device (100) or a second device (100), preferably a contactor, is mounted on one of the first mounting levels (E1) of the mounting section (3).

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