The AD2-B0-34-450-3B1-C is a 3-pole A-Series hydraulic-magnetic circuit breaker designed for precise overcurrent protection in compact installations. This breaker is rated for a maximum voltage of 277 VAC at 50/60 Hz or 80 VDC, with a current rating of 450 A and a maximum interrupting capacity (IC) of 7,500 A. It features a series trip (current) circuit configuration with a handle actuator (one per multipole unit) and an S.P.D.T. auxiliary switch with 0.093 inch quick-connect terminals. The breaker is UL 1077 recognized, UL 508 listed for industrial control, CSA certified, and TUV/VDE certified to EN60934, making it suitable for demanding applications. Common applications include marine systems, renewable energy installations, industrial automation, welders, and military equipment where reliable electrical protection and compact design are essential.