Eaton Cutler-Hammer FB3040PL 3 Pole Circuit Breaker

The Eaton Cutler-Hammer FB3040PL is a 3-pole, 40-amp circuit breaker in the FB Tri Pac family, designed to protect three conductors from overload and short-circuit conditions in electrical panels. With its three-pole configuration, it provides simultaneous interruption across three live paths, making it suitable for multi-wire branch circuits and three-phase supply arrangements in commercial or industrial panels. The FB3040PL uses the FB Tri Pac style enclosure/linkage format, and carries the exact part number FB3040PL for identification and replacement compatibility within Eaton's Cutler-Hammer catalog. This unit is intended for installation in compatible Eaton/Cutler-Hammer electrical distribution systems where 40-amp protection is required, ensuring quick interruption of excessive current to prevent equipment damage and reduce risk of electrical fires. Typical applications include feeders and branch circuits in control panels, motor starters, or other electrical installations that require reliable triple-pole protection at 40 A. Always verify compatibility with the existing panel board and follow local electrical codes during installation.