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No, the National Electrical Code book (US) limits the current on a #12 AWG to 20 amps.

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No, a 30 amp breaker should not be used with number 12 wire. Number 12 wire is typically rated for a 20 amp circuit. Using a 30 amp breaker could lead to overheating and potential fire hazards.

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Q: Can 30 amp breaker be put in number 12 wire?
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Can you put 20amp breaker on 10-2 wire?

No, you should match the breaker size to the wire gauge. A 10-2 wire is typically rated for a 30 amp breaker. Using a 20 amp breaker on 10-2 wire could result in overheating and a potential fire hazard.


How big of a single pole breaker can you put on 12-2 wire?

You can use a 20-amp single pole breaker for 12-2 wire. This is the standard size breaker for 12-gauge wire in residential applications.


Can 10 gauge wire be used on a 20 amp breaker?

No, it is not recommended. A 20 amp breaker should be used with a wire gauge of 12 or smaller to ensure the wire does not overheat and cause a fire hazard. Using a 10 gauge wire on a 20 amp breaker could potentially overload the wire and overheated it.


Can you connect 14 gauge wire to 12 gauge wire on a 20 amp breaker if the 14 gauge is the end of the run and dedicated to lights?

It is not recommended to connect a 14 gauge wire to a 12 gauge wire on a 20 amp breaker, as this can create a safety hazard. It's important to match the wire gauge to the circuit breaker rating to prevent overheating and potential fire hazards. It would be best to run a continuous 12 gauge wire for this circuit.


Can you use 6 gauge wire on A extension cord and put 30 amp plugs on it?

If your question is can you use a #6 flexible SOOW cord and put a 30 amp plug on it, then yes. The breaker that feeds the receptacle that the cord will plug into can be no larger than a 30 amp breaker. What limits the cord capacity to 30 amps is the ratings of the plug on the end of the cord.