Square D Double Pole 40 Amp QO Plug-On Circuit Breaker

QO Circuit Breakers provide the high level of protection you expect from Square D. When it comes to electrical protection, fast response is critical and QO Circuit Breakers can trip faster than the blink of an eye. This breaker will work only in Square D branded residential panels. Typical application for a double pole 40 Amp breaker include a electric range (240V up to 3.75kw) in a home and requiring a wire size of 8-3.

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