Busbar D9XFH3N12 A9XPC712

Acti9 comb busbar for three-phase installations

The D9XFH3N12 busbar is a professional component of the Acti9 distribution system, designed for three-phase electrical installations with a neutral conductor. The product provides a safe and efficient connection for up to 4 modular devices in a 3P+N configuration, offering a rated continuous current of 80A at a maximum operating voltage of 400V.

Electrical parameters and safety

The device operates at a rated voltage of 400V AC and provides insulation of 440V AC, guaranteeing safe operation in standard industrial and commercial installations. A rated impulse withstand voltage of 4kV protects the installation against surges, while an IP20 protection rating (with covers) ensures safe use within distribution boards.

The busbar complies with IEC 61439-1 and CEI 60439-1 standards and features fire resistance confirmed by tests according to the IEC 60695-2-1 standard - it withstands 960°C for 30 seconds. The pollution degree is rated at level 3, allowing for use in most industrial conditions.

Construction and compatibility

The busbar, with a length of 276mm, occupies a width of 12 modules (modules of 18mm) with phase-to-phase spacing of 18mm, and a phase-to-neutral spacing of only 9mm. It is manufactured in white (RAL 9003) and can be cut to size, allowing for a perfect fit into a specific distribution board.

The "pin" type construction enables rapid top-down mounting onto the tunnel terminals of modular devices. The product is fully insulated and equipped with protective end caps and finger guards, providing comprehensive protection for the connections.

Application and practical benefits

This solution is ideal for residential, commercial, and industrial distribution boards where even three-phase power distribution to multiple circuits is required. The busbar enables the powering of various types of Schneider Electric modular devices from the Acti9 (iC40), Acti9 (iDPN), Multi9 (N40) series, and their Vigi variants.

Key advantages include the ability for rapid installation without the need for individual wiring of each device, maintaining phase load symmetry, and ease of system expansion by adding further modular devices within the comb system.