**Yes, you can use 10 AWG copper conductors with a 20 ampere breaker**. The smallest size conductors you could use with a 20 ampere breaker, are 12 AWG copper conductors. There’s no problem using larger conductors, other than cost to you, and difficulties associated with working with thicker conductors.

## How far can you run 10 gauge wire on 20 amp circuit?

How Far Can You Run 10 Gauge Wire? You can run a 10 gauge wire up to **85 feet** on a 20 amp circuit. If you opt to use this type of wire on a 15 amp circuit, it can run up to 115 feet. After these distances, the circuit will go over the recommended 3% voltage drop.

## What size breaker can 10 gauge wire handle?

30 amps

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for **30 amps**, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

## What size wire will fit in a 20 amp breaker?

12 AWG

A 20 amp breaker requires a wire size of **12 AWG**. This is the smallest wire size you should use for a 20 amp circuit breaker since an AWG gauge of 12 represents 20 amps.

## When should I use 10 gauge wire?

10-gauge are used in **electric clothes dryers, 240-volt window air conditioners, electric water heaters supporting 30 amps**. 6-gauge are used for cook tops and ranges carrying 40-50 amps. 4-gauge are used for electric furnaces and large electric heaters protected at 60 amps.

## Can I use 10 gauge wire on a 15 amp breaker?

**Only for 15 Amp items**, 14 or 888-282-0465 888-282-0465 888-282-0465, or smaller for 20 Amp ones. The #10 wire wouldn’t fit into a back wired receptacle and wouldn’t work with screw terminals or devices with wired connections.

## How far can you run 10 gauge wire on a 30 amp breaker?

10-gauge wire can accommodate a 30-amp breaker until you reach **150 feet**. At 150 feet or more, you should get 8AWG or 6AWG wire.

## How many amps will a 10 gauge wire carry?

30 AMPS

#10 Gauge THHN Copper Stranded Wire is the most popular single conductor copper wire and RATED FOR **30 AMPS**.

## Can I use 10 gauge wire on a 30 amp circuit?

**A 30-amp circuit breaker requires a minimum of 10-gauge wire for the conductor**, according to the American Wire Standard, or AWS. Using a wire larger than 10-gauge on a 30-amp circuit can pose a significant fire and safety risk. You can always use a lower gauge wire, but never bigger.

## How many amps can a 10 gauge wire handle at 12 volts?

Maximum current (amps) in a 12V electrical circuit vs. size (AWG) and length of wire.

American Wire Gauge (#AWG) | ||
---|---|---|

Length (feet) | Maximum Current (amps) | |

50 |
10 |
8 |

60 |
10 |
6 |

70 |
10 |
6 |

## Can I connect 10 gauge wire to 12 gauge wire?

**There is no problem at all connecting a 10 gauge wire to a 12 gauge wire**. Make sure that the current in the wire does not exceed 120 volts. Use a 20 amp circuit protector to make sure that the connection is safe. The combination of different gauges is a perfectly safe and normal procedure.

## What is 10 gauge stranded wire used for?

10 Gauge Stranded. 10 Gauge wire solid is the most frequent type of wiring used in **construction and construction projects**. It can also be employed in electronics when you get down to the tiniest gauge sizes.

## Will 10 gauge wire carry 50 amps?

**A 10-gauge bare copper wire can carry a 50-amp load**, but the resistance in the cable will cause it to heat up substantially.

## What is 20amp wire?

Why Wire Gauge Is Important

Wire Use | Rated Ampacity | Wire Gauge |
---|---|---|

Low-voltage lighting and lamp cords | 10 amps | 18-gauge |

Extension cords (light-duty) | 13 amps | 16-gauge |

Light fixtures, lamps, lighting circuits | 15 amps | 14-gauge |

Kitchen, bathroom, and outdoor receptacles (outlets); 120-volt air conditioners | 20 amps | 12-gauge |

## What gauge wire do I need for 220 volts?

A 30 Amp circuit is needed for most 220V tools. You will need to run a 10-2 to the outlet. **10-2 copper wire** is usually good for up to 40 Amps on start loads and 35 Amps on constant load.

## What size wire do I need to run 50 amps 100 feet?

6 AWG

For every 100 feet, voltage drops by 20%.

Example: 50 amp wire is usually the **6 AWG** (we require at least 62.5A and 6 AWG can handle 65A). If you have to power an electric device 100 feet away, you need 20% amps more. Instead of 62.5A, you’re looking at 62.5A × 1.2 = 75A.

## Can I use 8 gauge wire for a 50 amp breaker?

Can You Use 8-Gauge Wire On A 20,30,40,50 Amp Breaker? **You can use 8-gauge wire on a 20,30,40 and 50-amp breaker**. It will only be a problem if it exceeds 55 Amps.

## What is 10 2 Romex used for?

NM-B is primarily **used in residential wiring as a branch circuit for switches, outlets and other loads**. NM-B may run in air voids of masonry block or tile walls where locations are not damp.

## What size wire do I need to run 100 amp Service 150 feet?

2/0 AWG wire

100 amp service 150 feet away from the sub panel requires **#00 AWG wire** (also known as 2/0 AWG wire). This wire has a median ampacity of 175 amps; more than enough than the required minimum 162.5 ampacity.

## What wire size do I need to go 100 feet for a 100 amp service to a workshop?

For a 100 ampere circuit, the conductors will likely be required to be **3 AWG copper or 1 AWG aluminum**.

## What size wire is needed for a 100 amp sub panel?

The cable must have a wire gauge sufficient to the amperage of the subpanel—a 100-amp subpanel requires **#4 copper wires or, more commonly, #2 aluminum wires**, for example. (Aluminum is often used for feeder cables because the cost is typically much lower than that of copper wires.)