Industrial FDB3020 Molded Case Circuit Breaker

Westinghouse FDB3020 is a 20 Amp, three-pole molded case circuit breaker built for low-amperage three-phase overcurrent protection in industrial power distribution and motor control systems. Part of the FDB Frame family, it provides thermal-magnetic protection and is designed for panel- or switchboard-mounted installation in MCCs, switchgear, and industrial control panels. It is commonly used to protect branches and connected equipment in manufacturing environments, HVAC infrastructure, conveyors, and automation machinery operating at 50/60 Hz. Common replacements include Eaton FDB3020, Siemens HFD3020, and Square D FA3420.