Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. In this diagram the electrical source is at the first switch and the light is located at the end of the circuit.
4 Way Switch Wiring Diagrams Do It Yourself Help Com
3 way wiring diagram. With these diagrams below it will take the guess work out of wiring. A point often overlooked is the traveler wires. This is the 3 wire cable which you must have to wire a 3 way. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut. Its much better to watch the video above to have a realistic 3 way wiring diagram. If you are trying to troubleshoot a 3 way switch operation you will need to identify the function of each wire.
Three wire cable runs between the switches and 2 wire cable runs to the light. 3 way switch diagram 2 above shows the electricity source starting at the fixture. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Traveler wires are interchangeable. The black and red wires between sw1 and sw2 are connected to the traveler terminals. Typical 3 way switch wiring nm cable.
Take a closer look at a 3 way switch wiring diagram. Wiring diagrams for 3 way switches. This electrical wiring diagram shows power into light switch box 1 wire to light from switch box 1 and from switch box 1 to three way light switch box 2. Wiring a 3 way light switch. Installing a 3 way switch with wiring diagrams three way switches control lights and receptacles from two points. Heres a 3 way wiring diagram i made back in the 1990s on a very crude version of microsoft publishing software.
The black line wire connects to the common terminal of the first 3 way switch. Wiring diagram 3 way switch with light at the end. Regardless of what 3 way switch wiring diagram youre following youll need to use a 3 wire cable to connect the two 3 way light switches. 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. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.
All three way switch and 2 way switch wiring diagrams have the same basic components. For example a light in a hallway that can be operated from the first floor and second floor install a three way switch. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Was this page helpful. 3 way switch wiring diagram. Diagram 1 above shows the electricity source starting at the left 3 way switch.
With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Make a small donation 1 5 to keep it running. This might seem intimidating but it does not have to be. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. These wires connect to the brass screws on the switch. 3 way switch wiring diagram.
Gallery of 3 Way Wiring Diagram
