3 Way Diagram Switch. By correctly connecting two of these switches together toggling either switch changes the state of the load from off to on or vice versa. With these diagrams below it will take the guess work out of wiring.
This is the most common and the easiest wiring diagram to follow of any of the wiring diagrams for a 3 way switch circuit. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. All of the switches shown below are 3 way.
Electrically a typical 3 way switch is a single pole double throw spdt switch.
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. 3 way switch wiring diagram. In the above 3 way switch wiring diagram at each switch the black wire gets connected to the copper or black screw. Electrically a typical 3 way switch is a single pole double throw spdt switch.
