Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. This might seem intimidating but it does not have to be.
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3 way 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. This diagram illustrates another multiple light circuit controlled by 3 way switches. Three wire cable runs between the switches and 2 wire cable runs to the light. Typical 3 way switch wiring nm cable. As with the other diagrams on this page more lights can be added by duplicating the wiring arrangement between the fixtures. Wiring 2 lights and 3 way switches.
Take a closer look at a 3 way switch wiring diagram. Make a small donation 1 5 to keep it running. The black line wire connects to the common terminal of the first 3 way switch. 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 diagrams for 3 way switches 3 way switch diagram 2 above shows the electricity source starting at the fixture. The black and red wires between sw1 and sw2 are connected to the traveler terminals.
The white wire must be re identified as a hot wire at each switch location. The white wire between switches is not being used as a neutral. With these diagrams below it will take the guess work out of wiring. 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. 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 two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. This is the 3 wire cable which you must have to wire a 3 way. Traveler wires are interchangeable on each switch. An example of three way switch wiring with the line and load in the same 4 square electrical box. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wire nut.
3 way switch wiring diagram with line and load in the same switch box. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. The fixtures hot wire connects. 3 way switch wire diagram power to light switch in this diagram the incoming hot wire attaches to the first switchs common dark colored terminal. Was this page helpful. The white wire becomes the energized switch leg as indicated by using black or red electrical tape.
A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Here the source and the fixtures come before the switches. 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. Installing a 3 way switch with wiring diagrams three way switches control lights and receptacles from two points.
Gallery of 3 Way Wiring Diagram
