This Siemens SENTRON 400 AMP CIRCUIT BREAKER 3 POLE 600 VAC W/ 400A TRIP JXD63B400 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 600 VAC, 400 AMP, 400A, 3 POLE. It is commonly in power distribution panels and industrial control circuits.
