Comb busbar, 4P, 63A 3 modules BI4-3PN-12 404969

Application and Purpose

The horizontal comb-type busbar is a key element of distribution systems, enabling efficient three-phase power distribution in electrical installations. The four-pole design (4P) ensures even distribution of electrical energy to a maximum of three modular devices mounted in a standard distribution board.

The busbar with a width of 3 modules and a length of 1 row has been adapted for use in industrial and residential conditions, offering a compact installation while maintaining full functionality of the power system.

Electrical parameters and operational safety

The device operates with a rated continuous current of 63A and a maximum operating voltage of 400V, allowing it to handle most standard loads in three-phase installations. The 10 mm² conductor cross-section guarantees minimization of energy losses and adequate current capacity.

The system ensures a high level of safety thanks to a rated impulse voltage of 2 kV and a rated conditional short-circuit current Iq of 0.63 kA. Additionally, a rated short-time withstand current Icw of 1.2 kA protects the installation from the effects of short circuits.

Mounting and system compatibility

Standard contact pitch of 17.8 mm enables mounting in most available modular distribution boards from various manufacturers. The busbar is cuttable to size, which significantly increases the flexibility of the installation configuration.

The design allows for quick connection of modular devices without the need for additional power cables, simplifying the assembly process and reducing installation time.

Design features and materials

The busbar is made of high-quality insulating materials in grey, ensuring durability and resistance to environmental conditions. The insulation guarantees safe operation and protects against accidental contact with live parts.

The device operates in a wide temperature range: from -20°C to +50°C during operation and can be stored at temperatures from -40°C to +70°C. The design height is only 26.8 mm, allowing for space savings in the distribution board while maintaining the full functionality of the three-phase power system.