Schneider Electric LAP36400MB Circuit Breaker

Schneider Electric's Square D LAP36400MB is a 400-amp, three-pole molded-case circuit breaker engineered for 600-volt AC electrical distribution. As an MB variant in the LAP/PowerPact family, it uses line/load lug terminals, a short-handle lever, and a thermal-magnetic trip mechanism to deliver reliable overcurrent protection in panel boards and switchgear. Rated for 600 VAC with an interrupting capacity of 22 kA at that voltage and a 250 VDC rating for DC circuits within compatible enclosures, this device provides robust protection across AC and DC portions of a system. The LAP36400MB is a unit-mount device designed to protect feeders and main circuits in commercial and industrial installations up to 400 A in three-phase systems. Typical installations include protection of feeders to subpanels, motor circuits, and distribution panels in data centers, manufacturing facilities, and large commercial buildings.