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Electrical Wire and Cable

How to Correct 3-Way Switch Wiring

How are lights wired for three way switches? Electric Wire Configuration for 3-Way Switches.

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Wiring Three Way Switches
Electrical Question: How are lights wired with three way switches?

Please tell me how to connect the lights 3 wire into the three way switch.

This electrical wiring question came from: Stuart, a Homeowner from Marlboro, New Jersey.

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

3-Way Switch Wiring for Light Fixtures

Wire Configuration for 3-Way Switches

When wiring three way switches there is typically a “white wire” as part of the 3-wire cable, the ground is assumed. The white wire is typically used for 3-way switching, however the “Neutral” conductor of the light circuit which is normally the “white wire” is NOT connected to the white wire that is used for 3-way switching. This is why the white wire should be identified with black electrical tape or black permanent marker when use for any switch wiring to prevent confusion. The two wires that are used as travelers and connected to the bottom brass colored pair of screws on the switches are not configuration sensitive. The “Point” or Dark colored screw at the other end of the switch will need to be connected correctly. A lot of instructions refer to this screw as the “Common” which can be confused with the “Neutral” which is sometimes referred to a the common wire.

More about 3-Way Switch Wiring

3 Way Switch Diagram
Easy to Understand 3 Way Switch Diagrams
3 Way Switch Diagrams Fully Explained. Detailed Electrical Wiring Diagrams and Pictures assist your Home Electrical Projects.

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The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.

Home lighting
recessed lighting
Home Lighting Articles
Home Lighting Articles covering recessed lighting, under cabinet lighting, lighting terminology and more.

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Wiring Diagram
Wiring Diagram
Wiring Diagram
Home electrical wiring diagrams are an important tool for completing your electrical projects. An electrical wiring diagram can be as simple as a diagram showing how to install a new switch in your hallway, or as complex as the complete electrical blueprint for your new home or home improvement project.

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Electrical Wiring Video #2

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Basic Home Electrical Wiring by Example

Dave's Guide to Home Electrical Wiring:

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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.

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

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