Westinghouse F3020 U Molded Case Circuit Breaker

The Westinghouse F3020 U is a 20 A, 3-pole, 600 V molded case circuit breaker (F Frame) with thermal-magnetic overcurrent protection for three-phase systems, designed for panel or switchboard mounting in industrial power distribution and motor control applications. It provides branch-circuit and equipment protection for MCCs, industrial panels, switchgear, HVAC systems, conveyors, and automation equipment operating on 50/60 Hz three-phase networks. This part number is used by maintenance personnel, OEMs, and electrical integrators for replacements, retrofit upgrades, and ongoing system protection. Cross-reference equivalents include Eaton FD3020, Siemens HFD3020, and Square D FA36020.