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Under most circumstances such a wire in a home it is 20.

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Q: What size breaker is used with 12 wire?
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running wire 12-2 300ft w/9ea. 27watt lights what size breaker should be used


How big of breaker do you use for 115 volt?

Depends on the wire size used in the circuit. If you use AWG # 14 wire you must use a 15 amp breaker. If it is wired with AWG # 12 wire then you use a 20 amp breaker. If a AWG # 10 wire is used then a 30 amp breaker is required. The breaker protects the wiring from overheating so you must use the proper size breaker for the wire used.


What size amp circuit breaker should be used for 110 outlet?

The size breaker you use is determined by the size wire used in the circuit. If you use AWG #12/2 wire then use a 20 amp breaker. If you use AWG # 14/2 then use a 15 amp breaker.


What size amp circuit breaker should be used for a home entertainment system?

You use the correct size breaker depending on the size wire in the circuit. If the circuit is wired with AWG #12 wire use a 20 amp breaker. If it is wired with AWG #14 wire then use a 15 amp breaker.


What size breaker should be used with ceiling fans?

Use 15 amp breaker with 14 gage wire or 20 amp breaker with 12 gage wire. Either way will work just fine.


Should 25 amps breaker be replaced by 20 amps?

For typical residential house wiring 12 AWG wire is required for a 20 Amp breaker. If you change out the breaker for a 25 A breaker you would have to rewire the circuit with 10 AWG. In that case you could up the breaker to 30 Amps. All outlets and switches should be rated at the same voltage and current as the breaker.


What size breaker for 12 gauge aluminum wire?

A #12 aluminium conductor with an insulation factor of 75 or 90 degrees C is rated at 15 amp. Therefore the largest size breaker to protect that wire will be a breaker rated at 15 amps.


What size breaker should be used for 1500 watt bathroom exhaust fan heater?

20 amp breaker 12 gauge wire assuming its 120 volt


What size wire and breaker do you need for a 5000 watt garage heater?

Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker


What size breaker do you need for two 60W bulbes 110 volts?

It is not the number of bulbs that you worry about. It is the wire size that is your concern. If the circuit is wired with AWG 12/2 wire then use a 20 amp breaker. If it is wired with a AWG 14/2 wire then use a 15 amp breaker. You are protecting the wiring with the correct size breaker.


Size fuse for 12 AWG wire?

Use a 20 amp fuse or breaker.


What gauge wire is used on a 20 amp breaker?

AWG 12.