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. Typical 3 way switch wiring nm cable.
Wiring Diagram A Comprehensive Guide
Three way switch schematic diagram. If you have any problems with these switches it may be best to call an electrician. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. The diagrams below show the conventional wiring for 3 way switches. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections. 3 way switch wiring diagram. Assortment of 3 way switch wiring schematic.
Take a closer look at a 3 way switch wiring diagram. Two very old three way switches are depicted in the photo above. A wiring diagram is a streamlined conventional pictorial depiction of an electrical circuit. Traveler wires are interchangeable. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. This might seem intimidating but it does not have to be.
3 way switch schematic wiring diagram. The black line wire connects to the common terminal of the first 3 way switch. Wiring a 3 way light switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. It reveals the components of the circuit as streamlined shapes and the power and also signal links in between the gadgets. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.
With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Unfortunately not all 3 way switches are wired the conventional way. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations. Two very old three way switches. With these diagrams below it will take the guess work out of wiring.