This Siemens AMP CIRCUIT BREAKER 600Y/347 VAC 3 POLE NGB3B040 is a circuit protection device manufactured by Siemens. 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 347 VAC, 40 AMP, 3 POLE. It is commonly in equipment protection and branch-circuit wiring applications.
