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