20 Amp Breaker Wire Size. The 3800 can be wired with 122 wire and a 20 amp breaker. The typical rule of thumb that techs will usually go by is that when you.
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But a 15-amp breakers wires out on the circuit may be 14-gauge 12-gauge or even a mixture. 40 AMP Wire Size. If it says 151 amps we need to step it up to 12-gauge copper wire.
A 15-amp breaker on the other hand will trip before 14-gauge wire overheats.
If it says 151 amps we need to step it up to 12-gauge copper wire. For a maximum of 30 amps youll need a wire gauge of 10. If it says 34 amps like in the example. CB size should be 125 of the circuit current.
