Moeller Electric B3.1 4-PKZM0-U Busbar Jumper

Moeller Electric B3.1 4-PKZM0-U busbar jumper is a 3-pole, 4-position connector rated for 63 A at 690 VAC, built for direct insertion into Moeller B3.1 busbar assemblies and designed to maintain consistent contact across all poles in demanding panel layouts. The device functions as a multi-pole interconnect that links busbar sections within modular distribution blocks, enabling configurable electrical paths in 690-volt systems while maintaining axial alignment, secure fastening, and repeatable performance across multiple mating surfaces. Designed specifically for the B3.1 family, it supports three conductors across four selectable positions, providing flexible routing options for power distribution in control panels, switchgear, motor control centers, and other industrial enclosures that rely on Moeller busbar hardware. Key specs to note are 63 A current rating and 690 VAC maximum voltage, which define its suitability for medium-power interconnects in compact layouts within Moeller's modular busbar ecosystem and ensure compatibility with complementary B3.1 jumpers and connectors.