The MVS 1 2 comb rail from DEHN is a single-phase, two-pole component of the modular wiring system, specifically designed for earth-side bridging in electrical switchgear. It is used, for example, to connect two DEHNguard-S surge protectors, ensuring a safe and reliable grounding. The comb rail is designed for a maximum installation length of two module units according to DIN 43880, making it suitable for standard installations in distribution boxes and enclosures. The product is made of copper with a nominal cross-section of 16 mm², ensuring high current-carrying capacity and low resistance values.

Applications
The MVS 1 2 comb rail is used in electrical distribution systems, particularly in enclosures and distribution boxes, where a secure and durable connection between multiple components is required. It is especially suitable for grounding surge protectors, where a stable and resistance-free connection to earth is necessary to ensure a safe discharge path during overvoltages. The single-phase, two-pole design makes it compatible with standard installations in low-voltage systems.

Functions and Features in Detail
The comb rail features two contact pins that ensure a secure connection with the corresponding modules in the modular wiring system. The use of copper with a cross-section of 16 mm² ensures high electrical conductivity and minimizes heat losses during current flow. The design allows for easy installation in standard modular systems, with a maximum installation length of two modules supporting installation in typical switchgear.

Technology Explained Simply
The comb rail functions as a mechanical and electrical connection between two or more components mounted in a modular system. Grounding is achieved via the contact pins, which are directly inserted into the modules. The use of copper as the conductor material ensures high conductivity, which is especially important at high current levels. The DIN 43880 standard defines the dimensions and module spacing, allowing the comb rail to be easily integrated into standard distribution boxes.

Compatibility and Accessories
The MVS 1 2 comb rail is specifically designed for use with DEHNguard-S surge protectors, enabling the earth-side connection between two protectors. It is part of DEHN’s modular wiring system and therefore fits into all systems designed according to DIN 43880. No additional specific accessories are mentioned in the sources.

Installation and Mounting
Installation is performed by inserting the contact pins into the corresponding modules in the distribution box. The comb rail is designed for a maximum length of two modules, enabling simple and quick installation. The connection is mechanically stable and ensures permanent electrical conductivity. No additional tools or mounting aids are required.

Operational Advantages
Using the MVS 1 2 comb rail ensures a reliable and resistance-free grounding, increasing the safety of the electrical installation. The easy mounting and compatibility with standard modules reduce installation time and costs. The high conductivity of copper with a 16 mm² cross-section ensures efficient current transfer and minimizes the risk of overheating.