The Westinghouse FD3040 Bolt-On Molded Case Circuit Breaker is a 3-pole, 40 A, 600 VAC overcurrent protection device in the FD frame that bolts onto industrial panels. Its thermal-magnetic design carries a 25 kA interrupt rating, making it suitable for protecting branch circuits and connected equipment in power distribution and motor control systems. Rated for 50/60 Hz operation, it is commonly installed in motor control centers, switchboards, and industrial automation panels, as well as manufacturing equipment requiring dependable three-phase protection.
