How to install a Dimmer switch. Wiring a Dimmer switch is as simple as Wiring a 2-way switch. If you're just replacing an already existing 2-way switch, then your objective should be as easy as swapping the wires from one switch to the other.
Ever wonder how to install a dimmer switch on a three lighting circuit. Well, think no more. In this video, I show you how it's done the easy way.
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Typical 3- Way Switch Wiring, NM Cable In the 1st diagram below, a 2- wire NM cable supplies power from the panel to the first switch box. The black (line) wire connects to the common terminal of the first 3- way switch. A 3- wire NM connects the traveler terminals of the first and second 3- way switch together.
Included are a 4-way dimmer switch diagram and an arrangement that can be used to control room lights from four different locations. Check here for 4 way switch troubleshooting and help with 3 ways switches here. For circuits that control lights from two locations only, check the wiring diagrams at this link. Wiring a 4 Way Switch with Light at
Wiring 3Way Switches Typically a 3-wire cable with a ground is installed between the two three way light switches. There are several 3-way switch wiring configurations which are based on where the electrical power enters the lighting circuit and the wiring to the light switches. More about Wiring Dimmer Switches. How to Wire a Switch