Eaton Cutler-Hammer FD3040 Bolt-On Circuit Breaker

The Eaton Cutler-Hammer FD3040 Bolt-On Circuit Breaker is a 40-amp, three-pole protective device designed for bolt-on installation in compatible FD-type panels, delivering reliable overcurrent protection for 3-phase feeders in industrial and commercial power-distribution setups. Rated for up to 600 VAC, it supports 3-phase circuits across a broad voltage range, making it suitable for motor feeders, control circuits, and distribution branches within Eaton's FD-series infrastructure. With an interrupting rating of 25 kA at 600 VAC, the FD3040 is engineered to safely interrupt fault currents typical of many industrial environments, helping protect conductors, devices, and downstream equipment from short-circuit energy. As part of the Type FD family, this bolt-on breaker is intended for use in Eaton equipment that accepts Type FD devices, ensuring compatibility with existing installations and straightforward replacement within FD-panel systems.