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Electrical Wire and Cable

Electrical Circuit for a Microwave

How to Wire a Microwave Oven Circuit: Microwave Cords and Plugs, The Problem with Shared Electrical Circuits

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How to Wire a GFCI Outlet
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Microwave Oven Electrical Circuit Requirements

Electrical Question: We are making some small kitchen changes, including moving and changing the built-in microwave (to a drawer type model).

Thanks so much.

This electrical wiring question came from: John, from Overland Park, Kansas.

Dave’s Reply:
Thanks for your electrical wiring question John.

How to Wire a Microwave Oven Circuit

Application: Microwave Oven Electrical Wiring.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your local area. A permit and inspections may also be required.

Microwave Oven Electrical Circuit

Microwave Cords and Plugs

The Problem with Shared Electrical Circuits

Please Note: The adage that “it works so it must be OK”  can be a very dangerous assumption when it comes to electricity!

Do it Right the First Time, You’ll Sleep Better at Night! (otherwise, make sure your smoke alarms are working!)

More about Electrical Wiring for a Microwave

Microwave Electrical Wiring
Microwave Wiring

The following may also be helpful for you:

Dave's Guide to Home Electrical Wiring:

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

Learn more about Home Electrical Wiring
with my Online Video Course:
Basic Home Electrical Wiring by Example

Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

Electrical Tips to Help You Wire it Right

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

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FAQs Frequently Asked Questions and Comments

4 Responses to “Electrical Circuit for a Microwave”
  1. lorenzo says:

    What are the suggested location of electrical outlets for microwave ovens and dishwashers. I have always seen the plug for these appliances located in adjoining cabinets instead of directly behind them. Is there a reason for this?

  2. Dave Rongey says:

    Hi Lorenzo,
    The outlet for the microwave oven is typically located behind the unit so this helps to hide the cord. However the outlet for the dishwasher used to be located directly behind it at the base of the wall but with that set up the only way to unplug the power was to uninstall the dishwasher. So now it is better to locate the dishwasher outlet under the sink where it is much more accessible. Under the sink it is best to install a separate 20 amp circuit to a duplex receptacle which is then shared by the disposal and the dishwasher.
    By the way, Camp Lorenzo looks like a nice place, I would like to visit there some time.

  3. Mike Yang says:

    I have a GE micro oven, model JVM1540DN1WW. It keeps running without touching. I unplugged the unit and plugged back after an hour. It seemed OK for 2-3 hours. Then started running again.

  4. Dave Rongey says:

    Hi Mike,
    If your microwave oven is running by itself and without your control then the unit should be unplugged and serviced by an authorized technician.
    I hope this helps,