Wiring A 3 Way Switch Diagram For Two Light
This 3 way light switch wiring diagram shows how to do the light switch wiring and the light when the power is coming to the light fixture.
Wiring a 3 way switch diagram for two light. Red and blue wires link traveler terminals of both switches. With these diagrams below it will take the guess work out of wiring. This might seem intimidating but it does not have to be. Now discussing 3 way light switch wiring diagram as also discussed above the color codes of the wires as having three insulated conductors as black as hot red as switch wire or called traveler and white as common wire as also shown when light is connected to both black and white wires.
In this updated diagram 3 wire cable runs between the receptacle and sw2 to allow for splicing the neutral source through to the second switch box. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Take a closer look at a 3 way switch wiring diagram. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit.
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. Typical 3 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Three wire cable runs between the switches and 2 wire cable runs to the light. The black hot wire connects to the far right switch s common terminal.
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. 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. Here the white is not used for hot but instead the black wire serves that purpose for the second switch. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw.
3 way switch wiring diagram depicting all wires in the ceiling junction box. The black and red wires between sw1 and sw2 are connected to the traveler terminals. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.