B2125H – SIEMENS 2P100A 240V BOLT ON 22kA BREAKER

No, they are not interchangeable. The B-frame (BL/BA) series uses a bolt-on mounting that physically fastens to the bus bar with a screw, while QP/QT breakers clip directly onto a plug-in bus. Each style requires a panelboard designed specifically for that mounting type. Using the wrong style in a panel is a code violation and a safety hazard. Check your panel's label or send us the model number and we'll point you to the correct breaker.

Yes. The B2125H is a 2-pole breaker rated for 240 V, making it appropriate for double-pole branch circuits — such as electric ranges, dryers, HVAC equipment, or a sub-panel feeder — up to 125 A, provided the panel and wiring are sized accordingly and the installation meets all applicable Canadian Electrical Code (CEC) requirements.

Yes, Northern Breaker Group specialises in obsolete and hard-to-find breakers, including legacy Siemens/ITE B-frame bolt-on units. Stock levels on older B-frame breakers can be limited, so we recommend contacting us early. Reach out via our quote form or visit one of our counter locations in Calgary, Edmonton, or Vancouver and our team will check current availability for you.