Eaton / Westinghouse JKL3400 – 400A 3 Pole Molded Case Circuit Breaker Buy Today

Built to maintain older electrical infrastructure, the Eaton JKL3400 is a 3-pole, 400A molded case circuit breaker from the Series C J-Frame lineup. It integrates seamlessly into legacy Westinghouse and Cutler-Hammer motor control centers and panelboards without requiring modern adapters. Equipped with thermal-magnetic trip technology, this unit mount MCCB offers fixed thermal and adjustable magnetic protection, ensuring reliable performance with a 65kAIC rating at 240VAC.