Can you use 12 gauge wire for a new electric dryer? Circuit Wire Size for an Electric Clothes Dryer: 220 Volt Dryer, 3-wire or 4-wire receptacle outlet.

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Electric Dryer Wire SizeElectrical Question: Can you use 12 gauge wire for a new electric dryer?

Someone told us that #12 wire could be used. We thought that 10 gauge wire is the right size for an electric dryer.

This electrical question came from: Tina, from Dunkirk, New York.

Dave’s Reply:Thanks for your electrical question Tina.

The Correct Wire Size for an Electric Dryer Circuit

Application: 220 Volt or 240 Volt Dryer Cord and Outlet Wiring.Skill Level: Beginner to Intermediate – Best if wired by a Licensed Electrical Contractor.Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.Estimated Time: Depends on personal level experience, ability to work with tools and the available access to the dryer cord electrical connection box.Precaution: Identify the dryer circuit, turn it OFF and Tag it with a Note before working with the dryer cord wiring.

Circuit Wire Size for an Electric Clothes Dryer

If the new electric dryer requires a 240volt 30amp circuit then the electrical circuit wiring requires a #10 gauge copper wire not a #12 gauge.10 gauge copper wire with THHN or THWN insulation is rated for 30 amps.12 gauge copper wire with THHN or THWN insulation is rated for 20 amps.More about Wiring an Electric Dryer

Wiring a Dryer for 3-Wire and 4-Wire Cords


3-Wire and 4-Wire Configurations for Clothes Dryers

See an electric dryer installation with a typical 220 Volt electric power cord wiring system.You may find yourself with either a 3-wire or 4-wire electric dryer, or a 3-wire or 4-wire outlet.Lets look a how the electric dryer is wired and what to do if your cord does not match the plug.

Guide to Home Electrical Wire


Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.
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Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,Handyman, Handy Women, and ElectriciansIncludes:Wiring GFCI OutletsWiring Home Electric Circuits120 Volt and 240 Volt Outlet CircuitsWiring Light SwitchesWiring 3-Wire and 4-Wire Electric RangeWiring 3-Wire and 4-Wire Dryer Cord and Dryer OutletHow to Troubleshoot and Repair Electrical WiringWiring Methods for Upgrading Electrical WiringNEC Codes for Home Electrical Wiring....and much more.
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Please Note:Unless otherwise posted, please refer to the following Guidelines when working on Electrical Projects:Skill Level:Intermediate to Advanced - Electrical Repairs and Circuit Wiring is Best Performed by a Certified Electrician or Licensed Electrical Contractor.Electrical Tools Required:Basic Electricians Pouch of Hand Tools, a Voltage Tester and a Multi Meter.Estimated Time:Depends on personal level experience, ability to work with tools, work with electrical wiring, and the available access to the project area.Precaution:Identify the project circuit, turn it OFF and Tag it with a Note before working with the wiring.Important:Modifying existing electrical circuits or installing additional electrical wiring should be done according to local and National Electrical Codes, with a permit and be inspected.
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