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Electrical Wire and Cable

Dimmer Switch Wiring Connections

By Dave Rongey - Summary:

Electrical Wire Connections for a Dimmer Switch – Many times it is found that a white wire may be used for a switch leg which will carry current or electricity to the light fixture. If you discover this, make sure to identify the wire as a switched wire.

Identifying Dimmer Switch Wiring Connections

Wiring a Dimmer: I am connecting a light fixture to a dimmer switch.

This electrical question came from: Garry, a Homeowner from Calgary, Canada

See more about Home Wiring for Canada

Dave’s Reply:
Thanks for your electrical question Garry

Dimmer Switch Wiring Connections

Garry, with a lot of switch wiring, the actual use of the wire should be identified using a voltage tester, and this would help out with your dimmer switch wiring project. There are some designations for wiring that can be easily identified, such as the following:

Typical Electrical Wiring Connections for a Dimmer Switch

Electrical Tip for Dimmer Switch Wiring

Generally most new switches come with an explanation for the wires found on the dimmer switch. Typically two wires will be one color, usually red which identifies the traveler wires, and the third wire is typically black. Most all dimmer switches are made to be used for either a single switch or a three way switch, so if you are replacing a single switch then cap off one of the two red traveler wires with a wire connector.

The Following will assist you with Wiring Dimmer Switches:

Wiring a Dimmer Switch

Guide to Home Electrical Wire

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