3 And 4 Way Wiring Diagrams

4 way switch wring diagram.

3 and 4 way wiring diagrams. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. In the 1st diagram below a 2 wire. With conduit the wire colors for travelers could be any color. The travelers actually pass the electricity between the two 3 way switches as well as the 4 way switches shown in the 4 way switching wiring diagrams.

In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. The black line wire connects to the common terminal of the first 3 way switch. 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. Below is another method for wiring 4 way switches.

You can have an indefinite number of 4 way switches in a circuit. Here the source is at the first switch sw1 and 3 wire cable runs from there to the first light l1. Fully explained 4 way switch diagrams. 4 way dimmer switch wiring diagram.

Traveler wires are interchangeable. To make this circuit work a 3 way dimmer can be used in place of one or both of the standard 3 way switches. Three wire cable runs between all the switches and 2 wire cable runs to the light. More 4 way switch wiring diagrams four way switch wiring schematic.

Next connect the white wire coming into the box to the white wire on the fixture. Typical 3 way switch wiring nm cable. Watch the 4 way switch video below and pay attention. If you understand how to wire a 3 way switch you ll have no issues with a 4 way switch.

This might seem intimidating but it does not have to be. 4 way switches are a convenient way to operate lighting fixtures from three or more locations. With nm cable the wire colors for travelers will be black and red using 3 wire cable. In this circuit two light fixtures are shown but more can be added by duplicating the wiring arrangement between the fixtures for each additional light.

This is the wiring for a dimmer in a 4 way circuit. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Interested in a 4 way switch wiring diagram. To illustrate the wiring of these 3 way switches switch boxes and fixture boxes are not shown but are obviously required for every application.

With these diagrams below it will take the guess work out of wiring. Then connect the black wire coming from the fixture to the black wire going to the first 3 way switch. They all must be between the two 3 way switches. Take a closer look at a 3 way switch wiring diagram.

4 way switch diagram summary. The electrical wiring adds additional wiring to the same principles of 3 way switching. In the 2nd diagram below blue wires are used for travelers. A 4 way switch is always placed in between two 3 way switches.