The diagrams below show the conventional wiring for 3 way switches. 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.
3 Way Switch Wiring Diagram House Electrical Wiring Diagram
3 way switch to light diagram. The methods shown here are some of the safest and most versatile though not the only options. 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. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. A 3 way light switch allows you to control a light source from two separate points. Three way switches allow for controlling a light fixture from two separate locations these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room. There are several ways to install a 3 way light switch.
In this diagram the electrical source is at the first switch and the light is located at the end of the circuit. This might seem intimidating but it does not have to be. 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. Three wire cable runs between the switches and 2 wire cable runs to the light. With these diagrams below it will take the guess work out of wiring. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw.
See alternate 3 way switch wiring configuration for another way 3 way switches may be wired. Wiring diagram 3 way switch with light at the end. In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. If you have any problems with these switches it may be best to call an electrician. Take a closer look at a 3 way switch wiring diagram. 3 way switch wiring diagram depicting all wires in the ceiling junction box.
No longer allowed after 2011 nec if no neutral wire in switch boxes 3 way switch wiring diagram light fixture between switchesline voltage enters the first 3 way switch outlet box light fixture is located between switch boxesno longer allowed after 2011 nec if no neutral wire in switch boxes. Although a 3 way is one of the hardest electrical circuits to figure out its also one of the most useful. Unfortunately not all 3 way switches are wired the conventional way. 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. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit.
Interested in a 4 way switch wiring diagram. 3 way switch wiring diagram line to light fixtureline voltage enters the light fixture outlet box. The black and red wires between sw1 and sw2 are connected to the traveler terminals.
Gallery of 3 Way Switch To Light Diagram
