The AB2-B0-34-630-5B1-C is a 2-pole hydraulic-magnetic circuit breaker designed for precise overcurrent protection in compact panel-mount applications. It is rated for a maximum voltage of 277 VAC at 50/60 Hz or 80 VDC, with a current rating of 50 amps per pole and a maximum interrupting capacity of 7,500 amps. The breaker features a series trip (current) circuit configuration with quick-connect (Q.C.) type terminals and operates with a sealed toggle actuator. Dimensionally, the breaker has a maximum width of 0.755 inches (19.18 mm) and a panel cutout of 0.630 inches (16.00 mm) diameter per pole. This breaker is well-suited for marine, telecom, renewable energy, industrial automation, and military applications where reliable load protection and compact design are essential.