Federal Pacific Electric FPE 3P40 N 40A 3P 240V 10K Circuit Breaker

Federal Pacific Electric FPE 3P40 N is a three-pole, 40-amp circuit breaker designed for 240-volt electrical systems, providing automatic disconnection when overloads or faults occur in commercial or residential distribution panels, and it supports standard electrical installation practices for 240-volt feeders. The 3P40 N model designation confirms three poles and a 40-amp load rating, while the 10K marking denotes its interrupting capability for fault currents in typical wiring scenarios and aligns with common protective device expectations. This protective device functions as part of a panel's overcurrent protection scheme, interrupting current to prevent overheating and damage to conductors and connected loads. As a member of the FPE family, the 3P40 N is intended for use in panels that accept Federal Pacific Electric breakers, offering a straightforward replacement option for established installations requiring this series. The 40-amp at 240-volt specification defines its operating envelope for circuits that demand higher current capacity while maintaining safety and protection within the electrical system, and electricians rely on this rating to determine suitability for a given 240V, three-pole circuit.