Three Way Light Switch Schematic

So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire.

Three way light switch schematic.

Wiring a 3 way light switch. Take a closer look at a 3 way switch wiring diagram. This might seem intimidating but it does not have to be. Interested in a 4 way switch wiring diagram.

3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. Three way switches allow for controlling a light fixture from two separate locations these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room. 3 way switch schematic wiring diagram. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

This is only a wiring schematic and not the actual wiring method used for 3 way switch installations. Two very old three way switches are depicted in the photo above. With these diagrams below it will take the guess work out of wiring. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections.

Regardless of what 3 way switch wiring diagram you re following you ll need to use a 3 wire cable to connect the two 3 way light switches. Two very old three way switches. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.