Light Switch 3 Way Diagram. Four way circuits are just a tad different than three way circuits mostly since the light switch that you add in has to be a four way switch rather than just another three way switch. 3 way switch wire diagram power to light switch in this diagram the incoming hot wire attaches to the first switch s common dark colored terminal.
Typical 3 way switch wiring nm cable. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. With these diagrams below it will take the guess work out of wiring.
Interested in a 4 way switch wiring diagram.
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. 3 way switch wiring diagram depicting all wires in the ceiling junction box. With conventional wiring the common wire from one switch connects to line the common wire from the other switch connects to the load lights. The fixture s hot wire connects.
