Can you use 12-gauge wire on a 30 amp breaker?
Can you use 12-gauge wire on a 30 amp breaker? A 30-amp breaker does not operate safely with a 12-gauge wire. The minimum wire size that is allowable for use with a 30-amp breaker is 10 gauge. A smaller gauge of wire indicates a larger diameter and the ability to carry more current safely. Twelve-gauge wire is acceptable with 20-amp or smaller circuit breakers. Why do you need a circuit breaker for an RV? If your circuit breakers are old or have seen better days, check out our selection of high-quality RV circuit breakers. RV circuit breakers help keep your...