Traveler wires are interchangeable. Wiring a 3 way light switch.
The Three Way Switch
Wiring diagram 3 way switch power to light. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. Wiring diagram 3 way switch with light at the end. The black line wire connects to the common terminal of the first 3 way switch. 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. In this light switch wiring diagram the power feed joins the circuit via the light fixture where a two wire cable c2 runs from the light to the first 3 way switch sw1 and a 3 wire cable c3 joins the two 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.
With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. 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. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. 3 way switch wiring diagram depicting all wires in the ceiling junction box. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw.
Interested in a 4 way switch wiring diagram. 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. Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. This might seem intimidating but it does not have to be. With these diagrams below it will take the guess work out of wiring. Take a closer look at a 3 way switch wiring diagram.
The black and red wires between sw1 and sw2 are connected to the traveler terminals. Each 3 way switch in these examples are controlling the power source to the same load. 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. 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 ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box.
Typical 3 way switch wiring nm cable. Three wire cable runs between the switches and 2 wire cable runs to the light. 3 way switch wiring diagram with power feed via light. Pick the diagram that is most like the scenario you are in and see if you can wire your switch.
Gallery of Wiring Diagram 3 Way Switch Power To Light
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