3 Wire Switch

3 Wire Switch. Three-way switches allow you to control lights or receptacles from two points. Is there a methodical way for me to identify which wires represent which piece of the.

electrical - Connecting a Leviton 3-Way Dimmer Switch to ... (Belle Bell)

Wire A Three Way Switch In Your Backyard Shed or Basement Finishing Project (or any Three way switches are used to have two switches turn on light(s). Disconnect all three wires (or four, if the outlet is grounded) from both switches. The colors will vary depending on whether NM cable or conduit was used.

The colors will vary depending on whether NM cable or conduit was used.

For example, this allows lighting in a hallway, stairwell, or other large rooms to be controlled from multiple locations.

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Three-way switches allow you to control lights or receptacles from two points. Three-way light switches control a light from two locations, such as from both ends of a staircase or hallway. So basically, you just need to add those wires to those screws and both switches.