Eaton / Westinghouse HLB3300 – 300A 3 Pole Molded Case Circuit Breaker Hot Picks

Built for commercial and industrial distribution, the Eaton HLB3300 is a 300A, 3-pole molded case circuit breaker from the classic Mark 75 family. It provides reliable thermal-magnetic protection for heavy-duty electrical systems. This L-Frame unit serves as an exact physical and electrical match for legacy Westinghouse panelboards. Using this original-spec breaker eliminates the need for the TAD3 spacer kit required when retrofitting with newer Series C KD3300 models. Rated for 65kAIC at 240V.