Wiring A 4 Way Switch
Then connect the black wire coming from the fixture to the black wire going to the first 3 way switch.
Wiring a 4 way switch. Power from light fixture to light switch. The 4 screw terminals will be grouped in pairs. If you want more than three locations to control the lights you will need a 4 way switch for each of those extra locations. For a 4 way light circuit to work you need two 3 way switches and at least one 4 way switch.
After that connect the black wire from the fixture to a red or white wire leading out of the box to the first. Connect the hot wire from the source to the common terminal on the first 3 way and the hot wire from the lights to the common on the other 3 way. To wire a 4 way switch start by turning off the circuit breaker for the room you re working in. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.
A 4 way switch has 4 screw terminals and a green grounding screw. Quick 4 way light wiring. The hot connects to the common on that switch and the neutral is spliced through all the switch boxes to the neutral terminal of the light. Connect the traveler terminal between all.
Next connect the white wire coming into the box to the white wire on the fixture. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. How to wire a 4 way light switch with power feed via the light switch in this 4 way light circuit the power source is via the first switch sw1.