General
Colour	Light grey RAL7035
Pipe size range	M16 - M32
Mounting spacing	50 - 60 cm
Mounting type	wood screw or toggle bolt
Mounting method	tool-free
Compatibility	OBO Multi-Quick and proQuick connectors
Application area	indoor and protected outdoor use
Pipe types	metric steel conduit, light and heavy insulated conduit, Quick-Pipe
Threaded connection	M6

The OBO Bettermann surface-mounted clamp type 2955 M25 is a fastening component made of polypropylene (PP) in light grey colour (RAL7035), specifically designed for mounting metric steel conduit, light and heavy insulated conduits, as well as the Quick-Pipe electrical installation conduit. It ensures secure fastening of these conduits to walls and ceilings in indoor environments and protected outdoor areas. The clamp allows tool-free installation of the conduit, thereby accelerating and simplifying the installation process. The integrated elongated slot opening enables lateral alignment during fastening with wood screws or hammer drive anchors, ensuring precise positioning of the conduits.

Surface-mounted clamp

The clamp is designed as a surface-mounted system, meaning it is mounted visibly on the surface. It is intended for use in electrical installations where quick and stable fastening of conduits is required. The design allows for easy installation without additional tools, reducing working time. The clamp is suitable for use in indoor spaces as well as protected outdoor areas, where there is no continuous direct weather exposure.

Functions and equipment in detail

The clamp features a tool-free mounting function, where the conduit is simply inserted into the clamp and secured by a clamping locking mechanism. This simplifies installation and reduces mounting effort. The elongated slot opening allows lateral adjustment of the clamp, enabling precise alignment before it is fastened with screws or anchors. The clamp is also stackable, allowing for a continuous fastening line along the conduit. It is compatible with other OBO systems such as the Multi-Quick or proQuick clamp, enabling flexible combinations of different fastening elements.

Technology explained clearly

The clamp is made of polypropylene (PP), a robust and durable plastic suitable for electrical installations. The light grey colour (RAL7035) ensures unobtrusive integration into the environment. The tool-free mounting is achieved via a clamping locking mechanism that securely holds the conduit without requiring additional tools such as pliers or screwdrivers. The elongated slot opening allows precise alignment, as the clamp can still be shifted laterally after inserting the conduit before final fastening.

Compatibility and accessories

The clamp is designed for conduits sized M16 to M32 and can be screwed onto M6 threads, enabling universal use. It is compatible with OBO Multi-Quick and proQuick clamps, allowing a uniform fastening line even across different clamp types. Fastening is done to walls and ceilings, with recommended fastening intervals between 50 and 60 cm.

Mounting and installation

Mounting is done by inserting the conduit into the clamp, where the clamping locking mechanism automatically secures the conduit. The clamp is then positioned on the wall or ceiling and fastened with wood screws or hammer drive anchors. The elongated slot opening allows lateral alignment, enabling precise positioning. Fastening intervals of 50 to 60 cm must be observed to ensure stable and secure anchoring.

Individual clamps can be connected in series to create a continuous fastening line. Compatibility with other OBO systems allows flexible combinations, enabling various installation scenarios to be addressed. The clamp is intended for use in indoor spaces and protected outdoor areas, where there must be no direct, continuous weather exposure.

Advantages in operation

The tool-free mounting reduces installation time and lowers work effort. The elongated slot opening enables precise alignment, ensuring a clean and professional installation. Compatibility with other OBO systems increases flexibility in planning and executing installations. The clamp is robust and suitable for use in electrical installations, with the material choice (PP) providing high resistance to mechanical stress and environmental influences. Fastening to walls and ceilings is simple and secure, ensuring stable anchoring of conduits.