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Wiring a 15amp 125volt Receptacle with Multiwire Configuration

Michael in Maine asks: Is it permissible to connect a 15A, 125V duplex receptacle to both phase conductors of a 120 240V, single phase multiwire branch circuit?


Multi-Wire Duplex Receptacle Outlet
Electrical Question: Is it permissible to connect a 15A, 125V duplex receptacle to both phase conductors of a 120 240V, single phase multiwire branch circuit by breaking out the tab connection between the two ‘hot’ terminal screws of the receptacle? I have seen this practice used in residential construction.

This electrical wiring question came from Michael, a Electrician in Kennebunk, Maine.

Michael, Thank You for Visiting Ask-the-Electrician!
You were visiting this Electrical Wiring resource page.

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

Wiring a Multi-Wire Duplex Receptacle Outlet

Application: Wiring a Multi-Wire Wall Outlet.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Certified 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 to the Wall Outlet, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Wall Outlet 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 Kennebunk, Maine. A permit and inspections may also be required.

See more about Home Wiring for Maine

Wiring a Duplex Receptacle Outlet

This electrical wiring project is about Wiring a Wall Outlet in an Apartment.

Multiwire Configuration
Reviewing the Electrical Question:

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Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
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Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
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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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