Assembly for mounting an electrical device on a busbar system using a height-adjustable mounting element

The device adapter with a height-adjustable mounting section and top-hat rail system addresses the inflexibility of existing busbar systems by allowing precise and tool-free adjustments, enhancing adaptability and efficiency in electrical device mounting.

WO2026098741A1PCT designated stage Publication Date: 2026-05-15RITTALWERK RUDOLF LOH GMBH & CO KG
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
RITTALWERK RUDOLF LOH GMBH & CO KG
Filing Date
2025-09-22
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing electrical mounting systems for devices on busbar systems lack flexibility and ease of adjustment, particularly in terms of height and position, often requiring complex manual adjustments and tools, which limits optimal space utilization and adaptability.

Method used

A device adapter with a height-adjustable mounting section and a variably lockable mounting element, incorporating a top-hat rail, allows for stepless height adjustment and variable positioning along the longitudinal direction, using a threaded drive and bayonet fitting for secure and tool-free installation.

Benefits of technology

Enables flexible and precise mounting of electrical devices at varying heights and positions, optimizing space utilization, reducing installation errors, and lowering costs by simplifying adjustments and maintenance, suitable for industrial applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an assembly having a device adapter (1) for mounting a first electrical device (100) on a busbar system and a mounting element (2) for mounting a second electrical device (100), the mounting element (2) being able to be locked on the device adapter (1) variably along a longitudinal direction (L) of the device adapter (1), characterized in that the mounting element (2) has a height-adjustable fastening section (3) for a second electrical device (100), such that a first mounting plane (E1) formed by the device adapter (1) and a second mounting plane (E2) formed by the height-adjustable fastening section (3) are at an adjustable distance (d) from one another.
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Description

[0001] ARRANGEMENT FOR MOUNTING AN ELECTRICAL DEVICE ON A COLLECTING RAIL SYSTEM WITH HEIGHT-ADJUSTABLE MOUNTING ELEMENT

[0002] The present disclosure relates to a system and a method for mounting electrical devices on a busbar system. In particular, the present disclosure relates to an arrangement comprising a device adapter and a variably lockable mounting element, which has a height-adjustable fastening section to allow different mounting levels with adjustable spacing.

[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 DE 20 2004011736 Ui, device adapters are used to mount electrical devices on busbars. However, these adapters offer only limited possibilities for height adjustment and variable positioning of the devices along the busbar. This can lead to limitations in the optimal use of available space and in adapting to different device heights. Furthermore, many of these systems require complex manual adjustments and tools to securely fasten and align the devices.

[0005] Despite considerable progress in the field of electrical mounting systems, there remains a need for improved solutions that allow for flexible and easy adjustment of the mounting positions and heights of electrical devices. In particular, there is a need for systems that offer preferably stepless height adjustment and variable locking along the longitudinal direction of the adapters to ensure optimal space utilization and easy installation. Furthermore, these systems should be user-friendly and operable without the use of special tools. Therefore, one of the technical problems underlying the present invention is to provide a mounting system that at least partially overcomes the disadvantages of known systems.

[0006] According to a particular feature of the invention, the arrangement comprises a device adapter for mounting a first electrical device on a busbar system, and a mounting element for attaching a second electrical device to the busbar system. The mounting element can be variably locked onto the device adapter along its longitudinal direction. A special feature of the mounting element is a height-adjustable mounting section, which allows the first mounting level, formed by the device adapter, and the second mounting level, formed by the height-adjustable mounting section, to have an adjustable distance from each other. An advantage of this arrangement is the flexible adjustment of the mounting height of the second electrical device, which offers improved adaptability to different installation requirements.

[0007] According to one embodiment of the invention, the height-adjustable mounting section includes or incorporates a top-hat rail. A top-hat rail, also known as a DIN rail, is a standardized mounting system commonly used in electrical and automation engineering to securely and efficiently mount various electrical devices and components. Integrating a top-hat rail into the height-adjustable mounting section offers several advantages. First, the top-hat rail enables flexible and modular mounting of electrical devices. This means that different devices can be installed or replaced easily and quickly without requiring extensive modifications to the mounting element. Second, the top-hat rail ensures stable and secure mounting of the devices, which increases the reliability and longevity of the entire assembly.Thirdly, the height adjustability of the mounting section allows devices to be mounted at different heights, enabling optimal space utilization and improved accessibility. This is particularly advantageous in applications where space is limited or where a specific device arrangement is required to ensure efficient cabling and maintenance. The combination of these features results in increased flexibility and adaptability of the arrangement, making it suitable for a wide range of electrical and automation applications. The use of a DIN rail in the height-adjustable mounting section not only simplifies but also standardizes the installation of electrical devices on a busbar system, ensuring compatibility with a wide variety of devices and components.This can lead to a reduction in installation and maintenance costs, as fewer special adjustments and tools are required. Overall, this design offers an improved solution for mounting electrical equipment that is both flexible and efficient, helping to overcome the challenges associated with conventional fastening technology.

[0008] In one embodiment, the arrangement features a height-adjustable mounting section that is continuously adjustable, preferably via a threaded drive. This height-adjustable mounting section allows for precise and continuous adjustment of the height of the second electrical device relative to the first mounting level, which is formed by the device adapter. The use of a threaded drive enables particularly fine and controlled height adjustment, increasing the flexibility and adaptability of the arrangement. This is especially advantageous in applications where precise positioning of the second electrical device is required to ensure optimal functionality and compatibility with other components of the busbar system. Furthermore, the threaded drive provides a robust and durable solution that allows for repeated adjustments without significant wear.The stepless adjustability ensures that no fixed positions are predetermined, thus providing maximum adaptability to different installation situations and requirements. This can be particularly advantageous in industrial applications where various devices with different dimensions and mounting requirements need to be integrated. These features make the arrangement not only more versatile and user-friendly, but also more efficient in installation and operation. The ability to steplessly adjust the height of the mounting section helps to minimize installation errors and reduce the time required for mounting and adjusting the devices. This can lead to a reduction in overall costs and improved operational efficiency.Overall, the described arrangement offers an improved solution for mounting electrical devices on busbar systems, distinguished by its flexibility, precision and durability.

[0009] In one embodiment, the mounting element comprises a lower part that allows it to be placed on the device adapter and variably locked in place along its length. This design enables flexible and easy adjustment of the mounting element's position along the device adapter, facilitating precise and needs-based placement of the second electrical device. The lower part acts as an interface between the mounting element and the device adapter, ensuring a stable and secure connection. This is particularly advantageous in applications where different electrical devices need to be mounted at varying distances and heights to meet specific installation requirements. The variable locking capability along the length of the device adapter means that the mounting element can be moved along its entire length and fixed in the desired position.This offers a high degree of flexibility in configuring the busbar system and allows for optimal use of available space. Furthermore, this feature simplifies the installation and maintenance of electrical equipment, as the mounting element can be easily moved or repositioned as needed without having to disassemble the entire device adapter. Another advantage of this arrangement is the ability to adapt the mounting element to different device types and sizes, increasing the versatility and adaptability of the busbar system. The use of a height-adjustable mounting section also allows for individual adjustment of the distance between the mounting levels, enabling even more precise adaptation to the specific requirements of the installation.This contributes to improved efficiency and safety of the electrical installation, as the devices can be mounted in an optimal position to ensure reliable and trouble-free operation. Overall, this arrangement offers improved flexibility, adaptability, and ease of use when installing and maintaining electrical equipment in a busbar system.

[0010] In one embodiment, the arrangement includes a height-adjustable mounting section that is height-adjustable relative to the base. This configuration allows for flexible adjustment of the height of the second electrical device relative to the first mounting level, which is formed by the device adapter. The height-adjustable mounting section allows for precise adjustment of the second electrical device's position to meet the specific installation requirements. This is particularly advantageous in applications where different device heights or variable distances between devices are required. The height adjustability of the mounting section allows for adjustment of the distance between the first and second mounting levels, providing greater flexibility in the arrangement and installation of the electrical devices.This not only simplifies installation but also maintenance and replacement of the devices, as their position can be changed with minimal effort. Furthermore, the height adjustability helps optimize space utilization by enabling a compact and efficient device arrangement. Another advantage of this arrangement is improved accessibility to individual devices, as the height adjustability allows for more ergonomic positioning. This can facilitate operation and monitoring of the devices, thereby increasing operational reliability. The ability to adjust the height-adjustable mounting bracket relative to the base also provides increased stability and safety of the installation, as the devices can be held firmly and securely in place.These features make the arrangement particularly suitable for use in industrial environments where flexibility, safety, and efficiency are of paramount importance. The invention thus offers an improved solution compared to the prior art by providing a simple and flexible method for mounting and adjusting electrical devices on a busbar system.

[0011] In one embodiment, the arrangement comprises a height-adjustable mounting section or a base part that has a measuring scale in the direction of height adjustment of the mounting section. The other part, whether the height-adjustable mounting section or the base part, is equipped with a pointer and / or a viewing window positioned in front of the measuring scale. This enables precise and user-friendly adjustment of the mounting section's height. The measuring scale serves as a visual reference, helping the user to set the desired height exactly. The pointer and the viewing window facilitate reading the scale and contribute to the accuracy of the setting. These new features offer several advantages.First, the mounting of electrical equipment on the busbar system is significantly simplified, as the height adjustment of the mounting section can be precisely controlled using the measuring scale and pointer or viewing window. Second, the flexibility of the arrangement is increased, as different heights can be easily set and reproduced, which is particularly useful when multiple devices need to be mounted at different levels. Third, installation safety is improved, as the precise positioning of the devices reduces the risk of incorrect installation and resulting electrical problems. Finally, the visual aid provided by the measuring scale and pointer or viewing window contributes to the efficiency of the installation process by minimizing the time and effort required for device adjustment.

[0012] In one embodiment, the lower part has a threaded receptacle, preferably an internally threaded opening, into which a vertically extending bolt with an external thread is screwed at least over a portion of its length. This allows for precise height adjustment of the mounting section for the second electrical device. The bolt is preferably equipped at one end facing the mounting section with a coupling, preferably a plug-and-turn connector, and more preferably a bayonet fitting or one half of a bayonet fitting. This coupling enables simple and secure fastening as well as quick release of the bolt from the mounting section. The threaded receptacle and the bolt allow for stepless height adjustment of the mounting section, enabling flexible adaptation to different installation heights and device sizes.The coupling also facilitates the assembly and disassembly of the second electrical device, simplifying maintenance and component replacement. The use of a bayonet fitting as the coupling offers the advantage of a quick, tool-free connection, reducing installation time and simplifying handling. The combination of threaded mount, height-adjustable bolt, and coupling ensures a robust and reliable assembly while providing high flexibility and ease of use. These technical features and benefits distinguish the invention from existing solutions by offering improved adaptability and user-friendliness often lacking in conventional systems.

[0013] In one embodiment, the mounting element comprises a slide by which the mounting element is placed on a rail of the device adapter that is complementary to the slide and is adjustable along its longitudinal direction. The slide is a movable element that engages in a rail specifically designed to enable smooth and stable movement along the longitudinal direction of the device adapter. The rail may have a longitudinally extending detent for pre-positioning the slide relative to the rail, into which the slide engages with a projecting latch.

[0014] The rail is preferably designed to be complementary to the carriage, meaning that its shape and dimensions are such that the carriage fits snugly and securely within it. This design allows for precise and controlled adjustment of the mounting element along its length. An advantage of this arrangement is the increased flexibility in positioning the second electrical device relative to the first. This enables optimal use of available space and adaptation to different installation requirements. Furthermore, the use of a carriage and a complementary rail improves the stability and security of the mounting, as the carriage is firmly guided within the rail, thus minimizing unwanted movement or vibration.Another advantage is the ease of use and installation, as the carriage can be easily moved along the rail and locked in the desired position. This reduces the effort and time required for installing and adjusting electrical devices. The ability to adjust the mounting element lengthwise also offers the flexibility to mount various device sizes and types without the need for additional adjustments or special brackets.

[0015] In one embodiment, the arrangement comprises a slide which, in conjunction with a complementary rail of the device adapter, has a plurality of locking positions at which the slide can be locked relative to the complementary rail. The slide serves as a movable element that can be moved along the complementary rail to reach different positions. The locking is preferably achieved by a friction-fit but, if necessary, releasable connection between the slide and the rail. These locking positions make it possible to fix the slide in several defined positions along the rail, thus enabling flexible and precise adjustment of the position of the second electrical device relative to the first electrical device.

[0016] The complementary rail can be designed with a variety of detents or notches into which the carriage can engage, ensuring a stable and secure mounting. This offers the advantage of allowing the position of the second electrical device to be adjusted quickly and easily without the need for additional tools or complicated adjustments. The multiple locking positions allow the user to select the optimal position for the second electrical device to ensure optimal functionality and accessibility. This flexibility is particularly useful in applications where the device arrangement needs to be frequently changed or adapted, such as in modular control cabinet systems or industrial automation applications.Furthermore, the ability to lock the carriage in various positions contributes to the safety and stability of the entire assembly, as the second electrical device is held firmly and securely in place, even under vibration or other mechanical stress. The invention thus offers an improved solution compared to the prior art by providing a simpler, more flexible, and safer method for mounting and positioning electrical devices in a busbar system. According to one embodiment, the assembly comprises a carriage with a slider that is adjustable back and forth between a locking position and a release position. In the locking position, the slider secures the carriage to the busbar, while in the release position, it releases the carriage relative to the busbar.In the locking position, a positive and non-positive connection between the slider and the rail is preferably established. This design allows for flexible and secure attachment of the slider to the rail, which facilitates the installation and removal of the second electrical device. The slider acts as a mechanism that stabilizes the position of the slider on the rail, thus enabling precise adjustment of the mounting element along the longitudinal direction of the device adapter. This feature is particularly advantageous because it allows for easy adjustment of the position of the second electrical device relative to the first, which significantly simplifies the installation and maintenance of the devices in a busbar system. The ability to adjust the slider between the two positions ensures a high degree of flexibility and user-friendliness in handling the assembly.This can be particularly advantageous in applications requiring frequent adjustments or repositioning of the devices. The height-adjustable mounting section of the mounting element further ensures that the mounting levels of the two electrical devices have an adjustable distance from each other, enabling optimal alignment and placement of the devices within the busbar system. The combination of these features results in improved functionality and flexibility of the entire assembly, thereby increasing the efficiency and safety of installing and operating electrical devices within a busbar system.

[0017] In one embodiment, the arrangement features a slider with a projection that engages a recess in the rail in the locking position and is disengaged in the release position. This specific design enables precise and secure fixation of the slider to the rail, thereby stabilizing the position of the mounting element along the longitudinal direction of the device adapter. The projection on the slider acts as a locking mechanism, engaging in the recess of the rail to ensure a secure connection. In the release position, the projection is retracted from the recess, allowing for easy and quick adjustment or removal of the mounting element. This mechanism offers the advantage of increased flexibility and ease of use when mounting and dismounting electrical devices on a busbar system.The ability to position the slider in either a locking or release position simplifies adjustment of the mounting element's position without the need for additional tools. This saves time and reduces the effort required for installing and maintaining electrical equipment. Furthermore, the secure locking of the slider in the rail recess ensures high stability and reliability of the entire assembly, which is particularly important in industrial applications.

[0018] In one embodiment, the rail has a plurality of recesses along its longitudinal direction, preferably spaced equally apart. These recesses allow for flexible and precise positioning of the mounting element along the rail, thus increasing the adaptability of the arrangement. The equally spaced recesses also facilitate the installation and adjustment of the mounting element, as they provide a clear and predictable structure that enables quick and easy adjustment. This reduces installation time and minimizes the risk of assembly errors. Furthermore, the plurality of recesses can contribute to increasing the flexibility of the arrangement by offering a greater number of possible mounting positions. This is particularly useful in applications where the positioning of electrical devices can vary or where there are specific requirements regarding the distance between the devices.The ability to slide the mounting element along the rail and lock it in various positions allows for optimal use of available space and better adaptation to different installation environments. Another advantage of the equally spaced recesses is the improved modularity of the system. The standardized recess arrangement allows for the easy integration and replacement of various mounting elements and device adapters, simplifying system maintenance and expansion. This is particularly beneficial in industrial applications where flexibility and adaptability are crucial. Overall, the equally spaced recesses along the rail offer a range of advantages, including increased stability, improved adaptability, reduced installation time, and enhanced modularity, significantly increasing the efficiency and versatility of the system.

[0019] In one embodiment, the arrangement comprises a slide having an actuating end that, in the locking position, is flush with an end face of the carriage, the slide being adjustable perpendicular to this end face between the locking position and the release position. The actuating end of the slide can be designed to be flush with the end face of the carriage in the locking position, ensuring precise and reliable locking. This arrangement ensures that the mounting element remains firmly fixed to the device adapter when in the locking position, while simultaneously allowing easy release and adjustment of the mounting element along the longitudinal direction of the device adapter when the slide is moved into the release position.

[0020] According to one embodiment, the arrangement, comprising a device adapter for mounting a first electrical device on a busbar system and a mounting element for mounting a second electrical device on a busbar system, includes means that enable a parallel arrangement of the first and second mounting planes. These parallel planes are configured to have an adjustable distance along their orthogonal planes. This means that the two mounting planes, formed by the device adapter and the height-adjustable mounting section, are parallel to each other, and the distance between them can be variably adjusted. The advantage of this configuration lies in the flexible adjustment of the mounting heights of the electrical devices, which allows for optimized space utilization and improved accessibility of the devices.The parallel arrangement of the mounting levels ensures an even distribution of mechanical loads, which increases the stability and safety of the mounted equipment. Furthermore, the height adjustment capability facilitates adaptation to different equipment sizes and types, thus increasing the versatility and adaptability of the arrangement.

[0021] In one embodiment, the mounting arrangement comprises an arrangement in which the device adapter is attached to a busbar system consisting of several current busbars, and the mounting element is fixed to the device adapter. A first electrical device, preferably an electric motor starter, is mounted on the first mounting level of the device adapter, while a second electrical device, preferably a contactor, is mounted on the second mounting level of the height-adjustable mounting section. The device adapter, also called a busbar adapter, serves as a base that is attached to a busbar system consisting of several current busbars to ensure the electrical connection and mechanical fastening. The busbar system can be enclosed by a touch protection system. Such a touch protection system is known from EP 3446381 Bi.

[0022] The mounting element, which can be variably locked along the longitudinal direction of the device adapter, allows for flexible positioning and adjustment. The height-adjustable mounting section of the element allows the height of the second electrical device relative to the first mounting level to be adjusted, thus creating an adjustable distance between the two mounting levels. This offers the advantage of efficiently and space-savingly mounting different electrical devices with varying heights and distances. The specific arrangement, in which an electric motor starter is mounted on the first mounting level and a contactor on the second, allows for optimized use of the available space and improved accessibility of the devices.The height adjustability of the mounting section allows for flexible adaptation to different installation requirements, increasing the versatility and adaptability of the entire mounting arrangement.

[0023] According to a particular feature of the invention, the complementary bayonet connector is a device that connects two components by means of a rotatable locking mechanism. A bayonet connector is characterized by its ease of use and quick connection capability, achieved by inserting the two parts into one another and locking them with a rotary motion. An advantage of this solution is its increased user-friendliness, as the connection can be made and detached without tools. A further advantage lies in the secure and stable connection ensured by the mechanical locking mechanism.

[0024] Further details of the invention are explained with reference to the figures below. These show:

[0025] Figure 1 shows a side view of an embodiment of an arrangement;

[0026] Figure 2 shows a perspective view of a mounting element with a height-adjustable fastening section of another embodiment of an arrangement;

[0027] Figure 3 shows an exploded view of a mounting element with a height-adjustable fastening section of yet another embodiment of an arrangement;

[0028] Figure 4 shows a longitudinal cross-section of a mounting element with height-adjustable

[0029] Mounting section of yet another embodiment; and Figure 5 a perspective view of an electrical device mounted on a height-adjustable mounting element according to an embodiment of the

[0030] Invention.

[0031] Figures i to 3 each show an arrangement consisting of a device adapter 1 and a mounting element 2, which serves to mount a second electrical device on a busbar system. The device adapter 1 is designed for attaching a first electrical device, while the mounting element 2 can be variably locked along the longitudinal direction L of the device adapter 1. The mounting element 2 has a snap-fit ​​connector 23 on each of its opposite longitudinal sides, in the form of teeth regularly spaced along the longitudinal direction L, which ensures pre-positioning of the mounting element 2 on the device adapter 1. The lower part 5 has at least one complementary tooth for each of the two snap-fit ​​connectors 23, which engages in the respective snap-fit ​​connector 23.

[0032] The first electrical device (not shown) could be, for example, a motor starter mounted on the first mounting level Ei of the device adapter 1, and the second device (not shown) could be, for example, a contactor mounted on the second mounting level E2 of the mounting element 2.

[0033] The mounting element 2 includes a height-adjustable mounting section 3, which forms a second mounting level E2. This second mounting level E2 is adjustable in the height direction H, so that there is an adjustable distance d between the first mounting level Ei of the device adapter 1 and the second mounting level E2 of the height-adjustable mounting section 3.

[0034] The height-adjustable mounting section 3 is continuously adjustable in the vertical direction H via a threaded drive 4. The mounting element 2 has a lower part 5 that is placed on the device adapter 1 and can be variably locked in the longitudinal direction L. The height-adjustable mounting section 3 is height-adjustable relative to the lower part 5.

[0035] The lower part 5 is provided with a threaded receptacle 9 into which a bolt 10, extending in the vertical direction H and having an external thread 11, is screwed at least over part of its length. The bolt 10 has a coupling 12 at its end facing the mounting section 3, preferably designed as a bayonet fitting, so that the end can be secured to and detached from the mounting section 3. To adjust the distance d, it may be provided that the mounting section 3 is detached from the bolt 10, and the bolt is rotated about its longitudinal axis to a length by which it protrudes from the lower part 5. This length is dimensioned such that the mounting section 3, in particular the second mounting level E2, has the desired distance d to the first mounting level Ei when the mounting section 3 is reattached to the bolt end via the connector.

[0036] The mounting element 2 comprises a slide 13 on its lower part 5, which rests on a rail 14 of the device adapter 1 that is complementary to the slide 13 and is adjustable along the longitudinal direction L. The slide 13 has a plurality of locking positions at which it can be locked relative to the complementary rail 14. The locking positions are defined by recesses 17, which are regularly formed along the longitudinal direction L of the rail 14. The fastening section 3, in particular the lower part 5, has a projection 16, for example a locking pin and / or a slide, which extends through the lower part 5 into one of the recesses 17 in order to lock the lower part 5 onto the rail 14.

[0037] As shown in Figures 4 and 5, the carriage 13 can be equipped with a slide 15 that is adjustable back and forth between a locking position, in which the slide 15 secures the carriage 13 to the rail 14, and a release position, in which the slide 15 releases the carriage 13 relative to the rail 14. The slide 15 is provided with a projection 16 that engages in a recess 17 of the rail 14 in the locking position and is disengaged from the recess 17 in the release position.

[0038] The rail 14 has a plurality of recesses 17 along its longitudinal direction L, which are preferably equally spaced apart. The recesses 17 are preferably designed as through holes. The slide 15 has an actuating end 18 which, in the locking position, is aligned with an end face 19 of the carriage 13. For this purpose, the lower part 5 has a receptacle 20 in which the actuating end 18 is fully received in the locking position.

[0039] Figure 2 shows a further embodiment of a mounting element 2 that can be mounted on a device adapter. The mounting element 2 comprises a height-adjustable mounting section 3, which forms a second mounting level E2. The mounting section 3 is height-adjustable with respect to a lower part 5, the lower part 5 being placed on the device adapter 1 and variably lockable in the longitudinal direction L. The height-adjustable mounting section 3 is provided with a measuring scale 6, which enables precise height adjustment. A pointer 7 and / or a viewing window 8 are also provided to read the exact position on the measuring scale 6. The lower part 5 has a threaded receptacle 9 into which a bolt 10, extending in the vertical direction H and having an external thread 11, is screwed at least over part of its length.The bolt 10 is provided at one end facing the fastening section 3 with a coupling 12, preferably a bayonet fitting, by means of which the end can be fixed to and released from the fastening section 3.

[0040] The mounting element 2 is further equipped with a slide 13, which is mounted on a rail 14 of the device adapter 1 that is complementary to the slide 13 and is adjustable along the longitudinal direction L. The slide 13 has a plurality of locking positions at which the slide 13 can be locked relative to the complementary rail 14. A slide 15 is adjustable back and forth between a locking position, in which the slide 15 secures the slide 13 to the rail 14, and a release position, in which the slide 15 releases the slide 13 relative to the rail 14. The slide 15 is provided with a projection 16 that engages in a recess 17 of the rail 14 in the locking position and is disengaged from the recess 17 in the release position.

[0041] The rail 14 has a plurality of recesses 17 along its longitudinal direction L, which are preferably equally spaced apart. The slide 15 is provided with an actuating end 18 which, in the locking position, is aligned with an end face 19 of the carriage 13.

[0042] Additionally, the lower part 5 is provided with a receptacle 20, which serves to fasten and stabilize the mounting element 2. The first mounting plane Ei and the second mounting plane E2 are parallel planes that have an adjustable distance d along their orthogonal sides.

[0043] This arrangement allows for flexible and precise mounting of electrical devices at different heights, enabling adaptation to various installation requirements and optimized space utilization. Figure 3 shows a detailed exploded view of a mounting element used to attach a second electrical device to a busbar system. The figure illustrates the various components and their assembly.

[0044] Mounting element 2 includes a height-adjustable mounting section 3, which forms a second mounting level E2. Mounting section 3 is adjustable in the vertical direction H to allow for an adjustable distance to the first mounting level Ei of the device adapter. The height-adjustable mounting section 3 is equipped with a DIN rail for mounting an electrical device. In principle, any electrical device from switchgear construction that is designed for DIN rail mounting is suitable. The electrical device could, for example, be a contactor.

[0045] The mounting section 3 is adjustable in the vertical direction H via a threaded drive 4. The threaded drive 4 consists of a bolt 10 with an external thread 11, which is screwed into a threaded receptacle 9 of the lower part 5. The lower part 5 serves as a base on which the mounting section 3 is placed and relative to which it can be variably adjusted in the vertical direction H.

[0046] The bolt 10 is provided at its upper end with a coupling 12, preferably designed as a bayonet fitting, or more preferably as one half of two complementary halves of a bayonet fitting. This coupling 12 allows the fastening section 3 to be locked and unlocked. For this purpose, the fastening section 3 preferably has a complementary half of the bayonet fitting. The complementary half can be designed as a passage through the fastening section 3, which has a contour on its inner circumference to form the bayonet fitting. A measuring scale 6 and a viewing window 8 are also provided to facilitate precise height adjustment of the fastening section 3.

[0047] Additionally, the mounting element 2 has a slide 13 which is mounted on a complementary rail of a device adapter and is adjustable along the longitudinal direction L. The slide 13 can be fixed in various locking positions to allow flexible adjustment of the mounting element's position.

[0048] A spring element 21 is arranged between the mounting section 3 and the lower part 5 to support and stabilize the height adjustment. The mounting section 3 is equipped with a complementary bayonet connector 22, which ensures a secure connection with the coupling 12 of the bolt 10.

[0049] Figure 4 shows a cross-sectional view of a mounting element for attaching a device to a device adapter. The figure illustrates the essential components and their arrangement.

[0050] Mounting section 3 is shown above and serves to mount a second electrical device. Mounting section 3 is height-adjustable and is supported by a base 5, which is placed on a device adapter and can be variably locked in the longitudinal direction.

[0051] A slide 15 is attached to opposite longitudinal sides of the lower part 5 and allows the carriage 13 to be locked in various positions along the complementary rail 14 of the device adapter. The slide 15 has a projection 16 that engages in a recess 17 of the rail 14 to fix the carriage 13 in the locking position (right slide). In the release position (left slide), the projection 16 is disengaged from the recess 17. If the right slide 15 is also disengaged from the recess 17, analogous to the left slide 15, the carriage 13 can be moved along the rail 14.

[0052] Figure 5 shows a detailed view of a height-adjustable mounting section 3 mounted on a base 5. The mounting section 3 is part of a mounting element used to attach a second electrical device 100.

[0053] The slide 15 is arranged in the locking position, in which one actuating end of the slide 15 is fully received in a receptacle of the lower part 5, so that the actuating end is flush with an outer surface of the lower part and forms a flat surface. The slide 15 has a projection that engages in a recess 17 of the lower part 5 to lock the mounting element in a fixed position relative to the device adapter.

[0054] The electrical device 100 is mounted on the height-adjustable mounting section 3. This configuration allows the device 100 to be positioned at different heights to meet the requirements of the respective application. The features of the invention disclosed in the preceding description, in the drawing, and in the claims can be essential for the realization of the invention, both individually and in any combination.

[0055] Reference symbol list: i Device adapter

[0056] 2 Mounting element

[0057] 3 Mounting section

[0058] 4 screw drive

[0059] 5 lower part

[0060] 6 measuring scale

[0061] 7 hands

[0062] 8 viewing windows

[0063] 9 Threaded receptacle io Bolt ii External thread

[0064] 12 Coupling / bayonet connector

[0065] 13 sleds

[0066] 14 rails

[0067] 15 sliders

[0068] 16 lead

[0069] 17 Exclusion

[0070] 18 End of operation

[0071] 19 Front

[0072] 20 recordings

[0073] 21 Spring element

[0074] 22 complementary bayonet connectors

[0075] 23 snap connectors

[0076] 100 device d distance

[0077] The first assembly level

[0078] E2 second mounting level H height direction

[0079] L Longitudinal direction

Claims

Claims:

1. Arrangement comprising a device adapter (i) for mounting a first electrical device (100) on a busbar system and a mounting element (2) for mounting a second electrical device (100), wherein the mounting element (2) can be variably locked on the device adapter (1) along a longitudinal direction (L) of the device adapter (1), characterized in that the mounting element (2) has a height-adjustable mounting section (3) for a second electrical device (100), such that a first mounting level (Ei) formed by the device adapter (1) and a second mounting level (E2) formed by the height-adjustable mounting section (3) have an adjustable distance (d) from each other.

2. Arrangement according to claim 1, wherein the height-adjustable mounting section (3) is a top-hat rail or has a top-hat rail.

3. Arrangement according to claim 1 or 2, wherein the height-adjustable fastening section (3) is continuously adjustable and preferably via a threaded drive (4) in the height direction (H).

4. Arrangement according to one of the preceding claims, wherein the mounting element (2) has a lower part (5) with which the mounting element (2) can be placed on the device adapter (1) and variably locked in the longitudinal direction (L).

5. Arrangement according to claim 4, wherein the height-adjustable fastening section (3) is height-adjustable with respect to the lower part (5).

6. Arrangement according to claim 5, wherein the height-adjustable mounting section (3) or the lower part (5) has a measuring scale (6) extending in the height direction (H) in which the mounting section (3) is height-adjustable, and the respective other part of the height-adjustable mounting section (3) and lower part (5) has a pointer (7) and / or a viewing window (8) positioned in front of the measuring scale (6).

7. Arrangement according to claim 5 or 6, wherein the lower part (5) has a threaded receptacle (9) into which a bolt (10) extending in the vertical direction (H) is inserted. a bolt (10) is screwed into an external thread (11) at least over part of its length, preferably having a coupling (12), preferably a plug-and-turn connector, particularly preferably a bayonet fitting, at an end facing the fastening section (3), by means of which the end can be fixed to and released from the fastening section (3).

8. Arrangement according to one of the preceding claims, wherein the mounting element (2) has a slide (13) with which the mounting element (2) is placed on a rail (14) of the device adapter (1) complementary to the slide (13) and is adjustable along the longitudinal direction (L).

9. Arrangement according to claim 8, wherein the slide (13) in conjunction with the complementary rail (14) of the device adapter (1) has a plurality of locking positions at which the slide (13) can be locked in relation to the complementary rail (14).

10. Arrangement according to claim 9, wherein the carriage (13) has a slider (15) which is adjustable back and forth between a locking position in which the slider (15) secures the carriage (13) to the rail (14) and a release position in which the slider (15) releases the carriage (13) with respect to the rail (14).

11. Arrangement according to claim 10, wherein the slider (15) has a projection (16) with which the slider (15) engages in a recess (17) of the rail (14) in the locking position and which is disengaged from the recess (17) in the release position.

12. Arrangement according to claim 11, wherein the rail (14) has a plurality of recesses (17) along the longitudinal direction (L), the recesses (17) preferably being equidistant from each other.

13. Arrangement according to one of claims 10 to 12, wherein the slide (15) has an actuating end (18) which in the locking position is aligned with an end face (19) of the slide (13), perpendicular to which the slide (15) is adjustable between the locking position and the release position. 14- Arrangement according to one of the preceding claims, wherein the first mounting plane (Ei) and the second mounting plane (E2) are parallel planes which have the adjustable distance (d) along their orthogonal sides.

15. Mounting arrangement with an arrangement according to one of the preceding claims, wherein the device adapter (1) is fixed to a busbar system consisting of several current busbars and the mounting element (2) is fixed to the device adapter (1), wherein a first device (100), preferably an electric motor starter, is mounted on the first mounting level of the device adapter (1) and a second device (100), preferably a contactor, is mounted on the second mounting level of the height-adjustable mounting section (3).