Westinghouse Replacement HFD3100 Molded Case Circuit Breaker

The Westinghouse HFD3100 Molded Case Circuit Breaker is a 100 Amp, 3-pole unit engineered for dependable overload and short-circuit protection in industrial power distribution. This 600 VAC, 50/60 Hz rated breaker employs thermal-magnetic tripping and bolt-on mounting within the HFD frame series, designed for branch circuits in demanding power systems. It is commonly installed in manufacturing equipment, automation panels, HVAC systems, conveyors, and facility electrical distribution assemblies, where reliable protection supports motor control centers, processing equipment, OEM machinery, pumps, and industrial control panels. The HFD3100 provides robust overload and short-circuit protection for 3-phase branches, making it suitable for MCCs and industrial control cabinets requiring dependable thermal-magnetic operation. Common replacements include Eaton HFD3100, Cutler-Hammer HFD3100, and Westinghouse HFD3100L.