Fantastic 3 Way Switch And 4 Way Switch

The red wire coming from the 4 way gets connected to the bottom screw of the same side.

3 way switch and 4 way switch. In the first position the contacts are connected straight through so that the switch has no effect. In case of a 3 way switch you can control the lights from two different places. If you understand how to wire a 3 way switch you ll have no issues with a 4 way switch.

At the second 3 way switch wire nut the two white wires together. You can have an indefinite number of 4 way switches in a circuit. There is one basic difference between the 3 way switch and the 4 way switch and that is the number of terminals in the switch.

In this episode i take apart a 3 way and 4 way switch and talk about how they work on the inside. Turn off the power at the circuit breaker. Remove the existing faceplates and switches from the gang boxes.

A typical 3 way switch works by allowing current 2 pathways. 2 wire cable runs from the light to the first switch and then 3 wire is run between all the switches. Watch the 4 way switch video below and pay attention.

A 4 way switch is always placed in between two 3 way switches. When connected properly a simple flip of any of the switches will turn on the light. 4 way switch wiring 4 way switch wiring fully explained 4 way switch diagrams.

At the light the black hot wire will pass right through going to the first switch. If there are no neutral wires present you may need to run additional wires. For more than two switches one or more 4 way switches are added between the 3 way switches.