Square D LIL36400 – 400A 3 Pole Molded Case Circuit Breaker Last Chance

Designed for commercial power distribution, this 400A current-limiting MCCB provides exceptional fault protection. It incorporates a thermal-magnetic trip unit with adjustable instantaneous functions. This unit-mount breaker installs into Square D switchboards, motor control centers, and enclosures using lug connections. For system upgrades, it is replaced by the LRL36400U31X. Capable of interrupting 200 kAIC at 480VAC, it significantly reduces let-through current to protect sensitive equipment.