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The BQ3B090H from Siemens is a reliable 3-pole 90A bolt-on breaker, designed for 240V applications. With a breaking capacity of 22kA, it provides optimal protection for your electrical systems. Ideal for both residential and commercial use, this circuit breaker ensures safety and performance in various installations.
The BQ series uses a bolt-on mounting method, where the breaker is fastened directly to the panelboard bus with screws, rather than clipping on like a QP plug-in breaker. The two mounting styles are not interchangeable, so your panel must specifically support bolt-on breakers. Check your panel's label or send us the model number and we'll confirm compatibility before you order.
Yes — at 90A, 3-pole, 240V with a 22kA interrupting rating, the BQ3B090H is well suited for use as a main or feeder breaker in sub-panels, or for protecting 3-phase loads in light commercial environments. Ensure your panel's available fault current does not exceed the 22kA interrupting rating; if it does, a higher AIC-rated breaker will be required to meet code.
Absolutely. Sourcing obsolete and hard-to-find Siemens breakers like the BQ3B090H is one of our specialties. We maintain extensive inventory and supplier networks across Canada. Reach out to our Calgary, Edmonton, or Vancouver counter — or request a quote online — and we'll do our best to get you what you need.
