Square D LAP36300 Three Pole Circuit Breaker

The Square D LAP36300 is a three-pole molded-case circuit breaker from Schneider Electric’s PowerPact LA family, rated for 300 A at 600 VAC with a 22 kA interrupt rating and a 250 VDC rating. It uses thermal-magnetic protection in a unit-mount configuration, providing overload protection via a thermal element and short-circuit protection via magnetic tripping across all three poles. Built on the LA frame, it’s designed for use in commercial and industrial panelboards and distribution systems that require robust 600 VAC, three-phase protection. This 3-pole breaker is suitable for main or branch-circuit protection in electrical installations where reliable interruption performance and straightforward replacement are needed.