The Westinghouse FB4020 Molded Case Circuit Breaker provides four-pole, 20 A overcurrent protection for industrial power distribution. Part of the FB Frame, its thermal-magnetic protection supports three-phase systems with neutral protection and is suitable for panel- or switchboard-mounted installation. Commonly installed in switchboards, motor control centers, industrial automation panels, and manufacturing equipment, it protects branch circuits and connected equipment in demanding industrial environments operating at 50/60 Hz.
