Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 3 way switch wiring diagram with line and load in the same switch box.
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Three way switch wiring diagram. With these diagrams below it will take the guess work out of wiring. 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. The black line wire connects to the common terminal of the first 3 way switch. Traveler wires are interchangeable. Three wire cable runs between the switches and 2 wire cable runs to the light.
Take a closer look at a 3 way switch wiring diagram. The white wire between switches is not being used as a neutral. 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. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. 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. Wiring a 3 way light switch.
3 way switch wiring diagram. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. In the above diagram the white wire must be re identified as a hot wire at each switch location. An example of three way switch wiring with the line and load in the same 4 square electrical box. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. 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.
Typical 3 way switch wiring nm cable.
Gallery of Three Way Switch Wiring Diagram
