Using 12 Gauge Wire With a 15 Amp Breaker

Is it alright to have a 15 amp breaker hooked up to 12 gauge cable? I know the 12 gauge is rated for a 20 amp breaker, but 15 amps is all that is required here.

By Gene



February 18, 20100 found this helpful

Absolutely safe. #12 gauge wire is the normal size wiring installed, even if the circuit breaker is smaller than 20amps. Sleep well. You're absolutely safe! It's the rating of the ckt. bkr. that protects your electrical device....A 15a ckt. bkr. can accommodate a maximum of 1440 watts @ 120vac [80% of 15a)

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