Siemens BL B220 Heavy Duty Industrial Circuit Breaker

Siemens B220 BL-type two-pole heavy-duty circuit breaker is a 20 A, 240 V AC protection device built on the BL frame with bolt-on mounting and common-trip operation. It is a 2-pole breaker designed for panelboard installations (panelboards, switchboards, and load centers), providing thermal-magnetic protection with a 10 kA short‑circuit rating at 240 V. The unit features load-side lug terminals and a bolt-on mounting style for secure installation in Siemens BL-series equipment, and it is UL-listed for use with 60/75°C conductors. The B220 is compact, roughly 2 in wide by 3 in deep by 3-9/16 in high, and is HACR-rated for use in general lighting, receptacle, and other 120/240 V circuits in commercial and light-industrial applications.