Circuit Breakers

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About this category

Circuit breakers for residential, commercial and industrial panels — Siemens Q and more, in stock in Canada.

Circuit breakers and circuit protection for residential and light-commercial panels, including Siemens Q-series plug-in breakers in single-pole, two-pole, GFCI and AFCI configurations plus Littelfuse protection products. Stocked in Canada by Maple Electric — CAD pricing, ships Canada-wide, will-call pickup in Vaughan.
Common questions
Can I put a Siemens breaker in any panel?
No. Breakers must match the panel's listing — Siemens Q breakers are for Siemens/EQ panels or panels explicitly listed for them. Confirm compatibility with a licensed electrician and the CEC before installing.
What's the difference between GFCI and AFCI breakers?
GFCI breakers protect people from ground-fault shock; AFCI breakers detect arc faults that can start fires. Many Canadian circuits now require one or both — a licensed electrician can confirm per the CEC.
How do I know what amperage breaker I need?
The breaker must match the circuit's wire gauge and load — for example, 15A on 14-gauge copper. Never upsize a breaker to stop nuisance tripping; have a licensed electrician assess per the CEC.

Maple Electric Supply ships electrical materials across Canada from our Vaughan, Ontario warehouse. Free shipping on orders over $150 in Ontario and Quebec, 10% off orders everywhere else in Canada, and counter pickup in Vaughan. Lighting, wire, breakers, controls, heating, EV charging and tools for electricians, builders and facility teams.