Eaton / Cutler-Hammer HLB3125 – 125A 3 Pole Molded Case Circuit Breaker Affordable

Engineered for commercial and industrial applications, this 125-amp molded case circuit breaker delivers reliable overcurrent protection. It is part of the Mark 75 family and utilizes an L-frame design. The unit installs into legacy Westinghouse panelboards, switchboards, and motor control centers via a standard bolt-on connection. For modern upgrades, this hardware is replaced by the newer HKD3125 model. Rated for 35 kAIC at 480VAC and 25 kAIC at 600VAC, it handles demanding fault currents.