Siemens B250 Molded Case Circuit Breaker Type BL

Siemens B250 is a 2-pole molded case circuit breaker from the BL family, rated for 50 A at 120/240 V AC, designed for panelboard mounting in Siemens distribution systems. It carries a 10 kA interrupt rating at 240 V, offering reliable overcurrent protection for typical residential and light commercial panelboards, and belongs to the BL series which covers 15–50 A models. This UL-listed device is CSA and NOM certified, with a thermal-magnetic trip mechanism, and is intended for panelboard-mounted, non-interchangeable use within Siemens BL line installations. Common applications include protecting branch circuits and feeders in residential load centers and light commercial distribution panels that rely on Siemens Type BL breakers, ensuring compatibility with Siemens panelboards and related accessories.