Instant Buy Eaton / Westinghouse HFB31550ML – 100A 3 Pole Motor Circuit Protector

Engineered for precise motor branch circuit protection, the Eaton HFB31550ML is a 3-pole, 100-amp instantaneous-trip device. As part of the legacy Mark 75 family, it provides dedicated short-circuit defense for industrial motors operating up to 600VAC. This unit mounts into standard motor control centers. It serves as an exact-fit replacement for older Cutler-Hammer and Westinghouse F-Frame installations. It offers an adjustable magnetic trip range spanning from 450 to 1550 amps.