Westinghouse Electric FB4015L Circuit Breaker

The Westinghouse FB4015L Molded Case Circuit Breaker provides reliable overload and short-circuit protection for low-voltage circuits in industrial power systems. Designed for panel-mounted installations in switchgear, motor control centers, and industrial control panels, it interrupts fault currents to safeguard downstream equipment. Key specs include a 600 VAC rating, FB frame series, thermal-magnetic trip, and configurable pole options, with interrupting capacity that varies by configuration. Part of Westinghouse’s Cutler-Hammer / Eaton legacy series, the FB4015L is compatible with common replacements in the FB-frame family and is used for panel upgrades, retrofits, and replacement of legacy molded-case breakers.