Comb busbar, 3P, 63A 4 modules BIS3-3P-12 404951

Three-pole busbar for modular distribution boards

The BIS3-3P-12 comb busbar is a professional electrical installation component designed for fast and secure power distribution in modular distribution boards. The three-pole design enables even energy distribution across all three phases, forming the foundation for the stable operation of the entire installation.

Operating parameters and safety

The device operates with a rated current of 63A at a maximum voltage of 400V, allowing it to handle most standard circuits in residential and commercial buildings. A rated short-circuit current of 0.63 kA and a withstand short-time current of 1.2 kA guarantee safe operation even in the event of a fault.

Protective insulation with an impulse voltage of 2 kV effectively protects against surges and electromagnetic interference. The busbar is made of a conductor with a cross-section of 10 mm², ensuring optimal conductivity while maintaining compact dimensions.

Construction and compatibility

A width of 4 modules (spacings of 17.8 mm) allows for the mounting of a maximum of four modular devices in a single row. The length of 213 mm corresponds to standard modular cabinet dimensions, facilitating integration with existing systems.

The "pin" type construction ensures a secure connection to the screw terminals of modular devices. The ability to trim to size allows the length to be adjusted to individual installation needs, eliminating the need for additional cutting tools.

Application and practical advantages

The busbar is used in residential, office, and industrial distribution boards as a central element of power distribution. The grey color scheme fits aesthetically into most types of distribution boards, and the insulation protects against accidental contact with live parts.

An operating temperature from -20°C to +50°C and a storage temperature from -40°C to +70°C enable installation in various environmental conditions.

The three-pole architecture eliminates the need for additional phase links, which simplifies installation and reduces the risk of connection errors. Each phase has a dedicated conducting path, ensuring the stability of electrical parameters and minimizing voltage drops.