answersLogoWhite

0


Best Answer

Yes, if you are running it no farther than 100 feet. If you are going over 100 feet use AWG # 10 wire on the 20 amp breaker.

User Avatar

Wiki User

10y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

2w ago

No, a 12 gauge wire is rated for 20 amps, which matches the breaker size. It is not recommended to use a wire that matches the breaker size as it can result in overheating and potentially cause a fire hazard. Consider using a thicker wire, such as 10 gauge, for the 20 amp breaker to ensure safety for the sub panel.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Is a 12 gauge wire on 20 amp breaker safe for a sub panel?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

What size wire to run 100' from panel using a 30amp breaker for a RV?

For a 100' run from the panel to the RV using a 30amp breaker, you should use 10 gauge wire to ensure safe and efficient power delivery. This wire gauge is appropriate for the distance and the current capacity of the breaker.


Can you use 10 gauge wire to connect a 2 15 amp outlets to a 30 amp breaker?

No, it is not safe to use 10 gauge wire with a 30 amp breaker as the wire is not rated for that high of a current. It is important to use the correct wire gauge that matches the breaker amperage to prevent overheating and potential fire hazards. For a 30 amp breaker, you should use at least 10 gauge wire.


How do you wire a 15 amp 120V breaker in a 240v 30 amp breaker panel?

Look to see if the 30 amp panel is fed with a two wire or a three wire. If it is a two wire then you are out of luck. If the panel is fed with a three wire then the panel should have the neutral terminated in the panel. It is this neutral that you need for 120 volt connections. You didn't state how many panel slots there are in the panel. If you are able install a 15 amp breaker into the panel and connect the wires going to the load. The black wire will go to the breaker and the white wire will go to the neutral bar in the panel.


Can 13 gauge wire be connected to a 20 amp breaker?

No, it is not recommended to connect 13 gauge wire to a 20 amp breaker. The wire gauge should match the amp rating of the breaker to prevent overheating and potential fire hazards. In this case, a 20 amp breaker should be used with at least 12 gauge wire.


14 gauge wire can be on what size circuit breaker?

A 14 gauge wire is typically used on a 15 amp circuit breaker. It is not recommended to use a larger circuit breaker with a smaller wire size as this can create a fire hazard.

Related questions

What size wire to run 100' from panel using a 30amp breaker for a RV?

For a 100' run from the panel to the RV using a 30amp breaker, you should use 10 gauge wire to ensure safe and efficient power delivery. This wire gauge is appropriate for the distance and the current capacity of the breaker.


Can you use 10 gauge wire to connect a 2 15 amp outlets to a 30 amp breaker?

No, it is not safe to use 10 gauge wire with a 30 amp breaker as the wire is not rated for that high of a current. It is important to use the correct wire gauge that matches the breaker amperage to prevent overheating and potential fire hazards. For a 30 amp breaker, you should use at least 10 gauge wire.


Is it safe to use 10 gauge wire on a 20 amp breaker for a microwave?

No, 10 gauge wire requires the use of a 30 amp breaker. A 20 amp breaker is only used on 12 gauge wire.


How do you wire a 15 amp 120V breaker in a 240v 30 amp breaker panel?

Look to see if the 30 amp panel is fed with a two wire or a three wire. If it is a two wire then you are out of luck. If the panel is fed with a three wire then the panel should have the neutral terminated in the panel. It is this neutral that you need for 120 volt connections. You didn't state how many panel slots there are in the panel. If you are able install a 15 amp breaker into the panel and connect the wires going to the load. The black wire will go to the breaker and the white wire will go to the neutral bar in the panel.


Can you 14 gauge wire from the panel box to 12 gauge wire to the light?

no


Can you use 14-3 wire on a 20amp breaker?

No. A 20 amp breaker needs 12 gauge wire.


Can 13 gauge wire be connected to a 20 amp breaker?

No, it is not recommended to connect 13 gauge wire to a 20 amp breaker. The wire gauge should match the amp rating of the breaker to prevent overheating and potential fire hazards. In this case, a 20 amp breaker should be used with at least 12 gauge wire.


Can you use 14-3 wire to power metal halide light outside?

The question isn't what you're powering with a particular gauge of wire, but what's the current draw. If the metal halide light can run on a 15 Amp breaker (from the breaker panel), fine use your metal halide in your residential application and run it on the 14 gauge wire.


14 gauge wire can be on what size circuit breaker?

A 14 gauge wire is typically used on a 15 amp circuit breaker. It is not recommended to use a larger circuit breaker with a smaller wire size as this can create a fire hazard.


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.


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.


What size cable is used for house wiring?

Copper SE cable gauge 00 from the meter socket to the breaker panel for a 200A service. Then 8, 10, 12, and 14 gauge wire depending on the load.