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The B370H is a Siemens 3-Pole 70A Bolt-On Circuit Breaker, designed for 240V applications with a robust 22kA interrupting capacity. Ideal for ensuring reliable protection in both residential and commercial electrical systems, this breaker offers exceptional performance and durability. Trust in Siemens for your power management needs.
The B370H is designed for Siemens/ITE panelboards and loadcentres that use the bolt-on bus style — such as certain EQ, ES, PL, and PN series panels. Because not every panel in these families accepts bolt-on breakers, we recommend confirming with your panel's model number. Contact our team at any Northern Breaker Group counter and we'll verify the fit.
The 'H' suffix on the B370H denotes a higher interrupting rating — this unit is rated at 22kA, compared to the lower interrupt capacity of a standard B370. If your panel schedule or engineer's specs call for a 22kA breaker at this position, the B370H is the correct selection. Always verify the required AIC (ampere interrupting capacity) rating shown on your panel's nameplate or engineering drawings.
Siemens' BL/BA bolt-on series breakers can sometimes be difficult to source, particularly in 3-pole configurations. Northern Breaker Group specialises in obsolete and hard-to-find breakers, and we maintain stock of both current and legacy Siemens product lines. Request a quote through our website or visit one of our Calgary, Edmonton, or Vancouver counters for availability.
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