Westinghouse FD3020 Molded Case Circuit Breaker

Westinghouse FD3020 is a 3-pole, 20-amp molded case circuit breaker designed for three-phase overcurrent protection in industrial electrical distribution. This thermal-magnetic device is suitable for motor control centers, switchboards, industrial automation panels, and manufacturing equipment requiring reliable branch-circuit protection. It belongs to the FD Frame family, rated for 50/60 Hz operation, panel or switchboard mounting, and provides overcurrent and short-circuit protection for low-amperage three-phase systems. Typical applications include MCCs, switchgear, and industrial control panels, as well as equipment like conveyors, HVAC infrastructure, and automation machinery. Common replacements include Eaton FD3020, Siemens HFD3020, and Square D FA3420.