The diagrams below show the conventional wiring for 3 way switches. Wiring a standard 3 way dimmer switch.
Electrical Made Easy How To Hook Up A 3 Way Switch Z Wave
3 way switch wiring drawing. Traveler wires are interchangeable. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. Here are several variations of using 3 way switches to control lights from two locations. 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. Attach to the bonded ground wires in the switch box.
This might seem intimidating but it does not have to be. All three way switch and 2 way switch wiring diagrams have the same basic components. Wiring a 3 way light switch. In this video the instructor shows the students how to draw a ladder schematic from their three way switch project. Each 3 way switch in these examples are controlling the power source to the same load. Fixture between two three way switches.
Below is perhaps the simplest arrangement panel to switch to switch to. Components of 3 way switch wiring. 3 way switch wiring diagram. Typical 3 way switch wiring nm cable. The ground wire is pigtailed with a wire connector at the switch boxes and the ceiling box. Colors are shown consistent with the nec.
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. With these diagrams below it will take the guess work out of wiring. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. The black line wire connects to the common terminal of the first 3 way switch. Take a closer look at a 3 way switch wiring diagram.
Power through switch light is controlled by two three way switches with the light between the switches and the power first going through a switch then to the light and onto the second three way switch. 3 way dimmer switches typically come with the following pre wired leads. If you are trying to troubleshoot a 3 way switch operation you will need to identify the function of each wire. If you have any problems with these switches it may be best to call an electrician. Before reading this page you may want to visit 3 way switches and 4 way switches. Unfortunately not all 3 way switches are wired the conventional way.
3 way switch wiring edisonhvac. 3 way switch circuits variations. Wires consisting of a line a load a neutral a pair of travelers and two 3 way switches. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. These wires attach to the travelers which are the pair of wires attached to the two screws at one end of the regular 3 way switch. 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.
Gallery of 3 Way Switch Wiring Drawing
