Below is a simple schematic diagram that can be applied to all three way electrical light switch connections. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations.
How To Wire Three Way Switches Part 1
Three way light switch schematic. With these diagrams below it will take the guess work out of wiring. Turn the power off at circuit breaker. Interested in a 4 way switch wiring diagram. 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. Basic 3 way switch diagram how to wire 3 way light switch step by step. All of the switches shown below are 3 way.
Now discussing 3 way light switch wiring diagram as also discussed above the color codes of the wires as having three insulated conductors as black as hot red as switch wire or called traveler and white as common wire as also shown when light is connected to both black and white wires. The first step in any electrical project is to make sure there is no power going to the circuit you plan to be working on. Two very old three way switches. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 3 way switches have three terminals one common usually black color and one pair of travelers usually brass color. 3 way switch schematic wiring diagram.
This might seem intimidating but it does not have to be. With conventional wiring the common wire from one switch connects to line the common wire from the other switch connects to the load lights. Take a closer look at a 3 way switch wiring diagram.