B330– SIEMENS (BL) 3P 30A 240V BOLT ON 10kA BREAKER

The BL series uses a bolt-on mounting method, where the breaker is physically bolted to the bus bar — providing a more secure connection, typically required in commercial panelboards or certain older residential loadcentres. The QP series uses a plug-in clip mount common in modern residential loadcentres. These two series are not interchangeable, so it's important to confirm which style your panel requires before ordering.

The Siemens B330 is rated for 240V, 3-pole use, making it appropriate for 240V three-wire or multi-wire branch circuit applications in single-phase panels (such as protecting a 240V load like a sub-panel feed or large motor). For true 3-phase (208V or 480V) applications, a different breaker rated for that voltage system would be required. Contact us if you're unsure which configuration suits your installation.

Yes — sourcing obsolete and hard-to-find Siemens BL-series bolt-on breakers is exactly what we specialize in. Whether you need a single B330 or a larger quantity for a maintenance or replacement project, our Calgary, Edmonton, and Vancouver teams can assist. Reach out for a quote and we'll confirm availability and lead time.