The portable ac in one room trips the 15 amp circuit breaker after about 45 minutes, can the breaker safely be changed to a 20 amp breaker?
Electrical – Portable AC trips circuit breaker
electrical
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Best Answer
No
The breaker size is dependent on the wire size. If the wire was 12 AWG then it would most likely already have a 20 Amp breaker. Since it has a 15 Amp breaker, most likely at least some of the wire in the circuit is only 14 AWG.