Latest Eaton / Westinghouse KL3400 – 400A 3 Pole Molded Case Circuit Breaker

Providing a critical replacement solution, the Eaton KL3400 is a 3-pole, 400A molded case circuit breaker that keeps aging infrastructure online safely. The unit mounts into legacy Westinghouse Pow-R-Line panelboards and MCCs. As the predecessor to the modern KD3400, it eliminates the need for complex retrofitting. It features fixed thermal-magnetic trip elements for standard LI protection. Rated at 22kAIC at 480VAC, it offers robust fault clearing for legacy equipment.