**For a maximum of 30 amps, you’ll need a wire gauge of 10. The most common household item that requires a 30 amp circuit is a central air conditioner.**

10 gauge

Thereof, What size wire do I need for a 220 volt circuit?

If you’re wiring a 220v, 20-amp outlet to run power tools, you can use the same 12-gauge wire you would use for a 110-volt, 20-amp circuit. Remember that the cable must have an extra hot wire. If the appliance draws 30 amps, you need a different type of receptacle, and the cable needs to be 10-gauge.

Also to know is, How many amps can 12 gauge wire handle at 240 volts? Use 12-gauge wire for a 20-amp circuit, 10-gauge for 30 amps, 8-gauge for 40 amps, and 6-gauge for 50 amps.

Subsequently, question is, What is the ampacity of 12 gauge wire? Copper

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Wire Gauge Size 60°C (140°F) NM-B, UF-B

14 15

12 20

10 30

Also, How far can you run 10 gauge wire for 30 amps?

10/3 will be fine for 50′. That’s about as long as you’d wanna go, though. a good rule of thumb is that voltage drop doesn’t start becoming an issue until the distance in feet is greater than the number of the voltage level (e.g. 120 ft for 120 volt, 240 ft for 240 volt, etc.)Feb 23, 2016

## Will 12 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].”Sep 18, 2017

## How far will 10 gauge wire carry 30 amps?

#10 is normally used for short runs of 30 amps. With 150 feet though, I’d opt at least for #8, and maybe even #6. Go to any standard wire table to find the ohmage of the wire size.

## How far can you run 10 gauge wire?

14 AWG 100 feet

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12 AWG 120 feet

10 AWG 128 feet

8 AWG 152 feet

6 AWG 188 feet

## Is 10 3 wire heavy enough for a dryer?

10/3 is FINE for the dryer. 12/2 for the washer. Typically a 220v/30 amp Dryer circuit would utilize 10/3 with ground. According to this voltage drop table, it looks like for 100′ run you would want to up-size the wire to #8 copper, to maintain voltage drop less than 3%.

## Can you use 10 2 wire for a dryer?

If your dryer does not require the neutral, and is a pure 220V appliance, than you can use the 10-2 and be code compliant.

## How far can you run 10 2 wire?

The size of the wire you run to your shed depends on how far away it is and whether you use 120V or 240V. If your shed is 50 feet from your breaker box, you can use 10/2 AWG UF-B wire for a 120V circuit up to 20A.

## What size wire do I need for a 30 amp breaker?

Any circuit fused for 30 amps must use a minimum of 10 ga copper or 8 ga alu. Longer runs may require an upgrade of wire size. In your case, use at least 10 copper for your welder regardless how far it is from the breaker panel.

## How many amps can 12 gauge wire handle?

20 amps

## What is 10 2 Romex used for?

Wire Gauge or Type Rated Amperage Common Uses

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14-2 Romex 15 A Lighting Circuits

12-2 Romex 20 A Lighting and Outlet Circuits, refrigerator

10-2 Romex 30 A Electric water heater, baseboard heaters

10-3 Romex 30 A Electric Clothes Dryer

## How far can you run 12 gauge wire on a 20 amp circuit?

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. You can run a 12 gauge wire up to 70 feet on a 15 amp circuit.

## What size wire do you need for 30 amps?

Any circuit fused for 30 amps must use a minimum of 10 ga copper or 8 ga alu. Longer runs may require an upgrade of wire size. In your case, use at least 10 copper for your welder regardless how far it is from the breaker panel.

## Can I use 12 gauge wire on a 30 amp circuit?

No. 12 gauge wire is rated for a maximum of 20 amps. You need a minimum of 10AWG wire for 30 amps.

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