The BA2-B0-46-620-221-D is a B-Series hydraulic-magnetic circuit breaker designed for precision overcurrent protection. This two-pole device is rated for 20A and has a maximum voltage rating of 277VAC or 80VDC. It features a series trip (current) circuit with a 50/60Hz long, high-inrush time delay, making it suitable for applications with temporary current surges. The breaker is equipped with a handle actuator and screw 8-32 terminals with upturned lugs for secure connections. Designed for temperature-stable operation, it is ideal for use in power supplies, medical equipment, marine systems, and control panels.