This 2B125 federal pacific FPE 2B main breaker 2 pole 125 amp 240V see my other fPE's is a circuit protection device in industrial equipment. It serves as the protective device in an electrical circuit, stopping current flow when a fault is detected. Key specifications noted on this listing include 125 Amp, 2 Pole. It is commonly in OEM equipment and MRO replacement for electrical protection devices.
