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3-Way Dimmer Switch Compatibility

Understanding 3-Way Dimmer Switch Compatibility – When using two or more dimmer switches they must be compatible with each other. Some brands will require you to have Master and Slave units, such as Lutron.

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Wiring 3-Way Dimmer Switches
[ad#block]Electrical Question: Just one quick question concerning 3-way dimmers. Is it OK to use a dimmer switch at each end of the run to control the same set of lights, or should only one dimmer be used & a regular 3-way switch be used at one end.


This electrical question came from: Ed, a Handyman from Rutland, Vermont.
Additional Comments: Easy to find what I needed.

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

3-Way Dimmer Switches for Light Fixtures

Application: Wiring Dimmer Switches.
Skill Level: Beginner to Intermediate – Best installed by a Licensed Electrician.
Tools Required: Basic Electricians Tools,  Pouch Hand Tools and Voltage Tester.
Estimated Time: Depends on personal level experience with electrical wiring and ability to work with tools.
Precaution: Identify the light circuit, turn it OFF and  Tag it with a Note before working with the dimmer switch wiring.
Materials: Make sure the replacement dimmer switch has the same amperage and voltage rating as the original switch, and is fully compatible with the electrical circuit, the light fixture and the type of light bulbs being used. The dimmer switch must be rated for the  amount of watts that will be controlled.

Understanding 3-Way Dimmer Switch Compatibility

  1. It depends on the dimmer switches that you will be using.
  2. When using two or more dimmer switches they must be compatible with each other.
  3. Some brands will require you to have a pair of Master and Slave units.

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