BA1-B2-26-620-5A1-D is a B-Series hydraulic-magnetic circuit breaker designed for precision operation in OEM applications requiring temperature-stable overcurrent protection. This 2-pole unit features a handle actuator (one per multipole unit), series trip circuit configuration, AC long time delay, and a 20A current rating. The breaker utilizes front panel snap-in mounting with a 0.75" (19.05mm) wide bezel without handleguard and includes barriers for multi-pole configurations. It carries VDE Certified, UL Recognized, and CSA Accepted agency approvals. Typical applications include power supplies, medical equipment, generators, welders, office equipment, control panels, marine, and military systems.