![]() You need a gauge that can withstand that spike, which is why most electricians use 4AWG copper wire for 70 amps. Some appliances will double or even triple their electrical draw when they start. But that is not an excuse to use thin wires. ![]() The NEC encourages consumers to limit the load to 80 percent of the circuit’s capacity. Your choice will influence the safety and security of your home. Therefore, you should select the breaker wire carefully. They will overheat and melt long before the 60-amp breaker trips. If you force the wires to carry more than 60 amps, the 60A breaker will trip, preventing the wires from overheating.īut what if the wires are just 10AWG? 10-gauge cables can withstand 35 to 40 amps. The breaker is supposed to protect the cables.įor instance, 6AWG is suitable for 60A breakers. Also, match each breaker to the correct wire size. If you prefer the cheaper option, get 2AWG aluminum cables.
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