Westinghouse Electric LB2400LB2P Circuit Breaker

The Westinghouse LB2400LB2P is a two-pole circuit breaker rated for 400 A at 120 V AC, designed to interrupt current in high-load electrical circuits and protect distribution panels from overloads. With a shunt-trip capability, this unit can be triggered remotely to disconnect power, enabling integration with safety interlock and emergency-control schemes. The two-pole configuration ensures simultaneous disconnection of both conductors in a 120 VAC line, providing robust protection for demanding applications that require a 400 A rating. Typically used in electrical distribution panels to protect feeders and main circuits, the LB2400LB2P is a Westinghouse LB series device identified by its model designation and suitable for installations where high-current, low-voltage protection is required.