Westinghouse FDB3100 Molded Case Circuit Breaker

The Westinghouse FDB3100 Molded Case Circuit Breaker is a 100 A, 600 V, 3-pole protective device designed for industrial electrical distribution. With a thermal-magnetic trip and the FDB frame, it delivers reliable overcurrent and short-circuit protection for three-phase systems in demanding environments. It is panel- or switchboard-mounted and commonly installed in motor control centers, switchboards, industrial automation panels, and manufacturing equipment powered by 50/60 Hz networks, including conveyors, HVAC infrastructure, and other automation equipment. Part Number FDB3100, this breaker protects branches and equipment in power distribution and motor control systems, and is commonly used as a replacement in MCCs and industrial control panels, with replacements such as Eaton FDB3100, Siemens HFD3100, and Square D FA34100.