Westinghouse FB3070S Molded Case Circuit Breaker

The Westinghouse FB3070S Molded Case Circuit Breaker is a 70 Amp, three‑pole, three‑phase device in the FB Frame series that provides thermal‑magnetic overcurrent protection for industrial power distribution. It is panel‑ or switchboard‑mounted and serves as branch circuit and equipment protection in motor control centers, switchboards, and industrial automation panels, as well as conveyors, HVAC infrastructure, and manufacturing equipment. Rated for 50/60 Hz operation, this molded case breaker is designed for high‑current three‑phase systems in MCCs, switchgear, and industrial control panels, and can be used for replacement or retrofit of existing installations. Common replacements include Eaton FB3070S, Siemens HFB3070, and Square D FA3470.