Westinghouse HFB3020 Molded Case Circuit Breaker

The Westinghouse HFB3020 is a 20 Amp, 3-pole molded case circuit breaker designed for industrial electrical distribution and motor control. It operates at 600 VAC with 50/60 Hz in a 3-phase system and uses a thermal-magnetic trip for reliable overload and short-circuit protection. This bolt-on, frame HFB molded case breaker is commonly installed in control panels and motor control centers (MCCs) for branch circuit protection in industrial power distribution systems, with typical applications in manufacturing equipment, HVAC systems, conveyors, automation panels, and processing equipment. Common replacements include Eaton HFD3020, Cutler-Hammer HFD3020, and Westinghouse HFB3020L.