Simple Three Wire Switch Schematic

Injunction of two wires is generally indicated by black dot on the intersection of 2 lines.

Three wire 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. This might seem intimidating but it does not have to be. But it does not imply connection between the cables.

Pick the diagram that is most like the scenario you are in and see if you can wire your switch. This is the 3 wire cable which you must have to wire a 3 way light switch. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture.

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. The line white neutral wire gets connected to the light fixture. As stated previous the traces at a 3 position toggle switch wiring diagram signifies wires.

Take a closer look at a 3 way switch wiring diagram. With these diagrams below it will take the guess work out of wiring. 3 way switch wiring diagram.

3 way switch wiring diagram depicting all wires in the ceiling junction box. These wiring diagrams are available in this post to be used as references and illustrations on how to set a 3 ways switch wiring. Wiring of 3 way light switches is certainly more complicated than that of the more common single pole switch so follow our 3 way switch wiring diagram.

At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw. The black wire from the other 3 way gets connected to the line black wire.