Three Way Switch Wiring Diagrams

This might seem intimidating but it does not have to be. With these diagrams below it will take the guess work out of wiring. Two three way switches control one light with the electric power coming through the first switch flowing to the second switch and then to the light fixture.

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In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.

Three way switch wiring diagrams. Wiring diagram for 2 way dimmer switch save wiring diagram for. Typical 3 way switch wiring nm cable. Interested in a 4 way switch wiring diagram. If you are trying to troubleshoot a 3 way switch operation then you will need to identify the function of each wire.

This is the 3 wire cable which you must have to wire a 3 way light switch. Fixture between two three way switches. Below is another method for wiring 4 way switches. Take a closer look at a 3 way switch wiring diagram.

All three way switch and 2 way switch wiring diagrams have the same basic components. 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. This arrangement allows for lowering the lights in a 3 way circuit. With these diagrams below it will take the guess work out of wiring.

With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Wiring a 3 way light switch. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Interested in a 4 way switch wiring diagram.

Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. The ground wire goes through both switch boxes and the ceiling light box and it is connected at all junctions except the light with a pigtail short piece of wire and wire connector. Three way switch diagram wiring diagram for westinghouse ceiling. The electrical switch box that contains the line and load wires may need to be bigger than the other switch boxes especially if there are other wires going into the switch box.

The black line wire connects to the common terminal of the first 3 way switch. 3 way dimmer switch wiring diagrams the following 3 diagrams show the wiring for a specially made dimmer that can be used in these circuits in place of either of the the 3 way switches or both. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. More 4 way switch wiring diagrams four way switch wiring schematic.

The exact cable you use depends on the gauge of the existing wiring in the rest of the circuit but in most cases the correct cable will be either 12 3 or 14 3.