Eaton / Cutler-Hammer HKA3100 – 100A 3 Pole Molded Case Circuit Breaker Deal

Belonging to the Mark 75 family, the HKA3100 is a 3-pole, 100A molded case circuit breaker. Built for commercial and industrial power distribution, it features an interchangeable thermal-magnetic trip unit with adjustable magnetic settings. This K-frame breaker installs into Westinghouse panelboards, Eaton Pow-R-Line C switchboards, and motor control centers. Rated for 35kAIC at 480VAC, it delivers high interrupting capacity and serves as a reliable cross-reference for HKD3100 and KD3100 models.