Home Improvement > Lighting and ElectricJanuary 08, 2010

Changing From a 15 amp to 20 amp Breaker

If a #12 wire is connected to a 15 amp breaker, can I assume that it is safe to replace the 15 amp breaker with a 20 amp breaker?

By Douglas from Sacramento

Answers

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By
01/08/2010

Changing just 5 amps causes more resistance, can double temperature of wire. wires may over heat and cause FIRE! Please get knowledgeable help. Not a DIY Project.

By
01/08/2010

No. You need to make sure all wiring connected anywhere in the circuit is also 12 gauge, and all devices, switches and receptacles should be rated 20 amps as that is the current available to them from a 20 amp breaker.

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Changing From a 15 amp to 20 amp Breaker. I want to change my 15 amp breaker to a 20 amp breaker, please help.

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