Wiring A 4 Way Switch With 3 Way. Connect the hot source to the common terminal on the first 3 way and the hot wire from the lights to the common terminal on the second 3 way. Free quick start guide here.
Please leave a comment i. If you understand how to wire a 3 way switch you ll have no issues with a 4 way switch. The other pair of the second switch 4 way travelers connect to one pair of the third switch 4 way travelers.
Return to location you plan to wire to verify that there is no electric flow to that device.
Turn on the light or device being controlled by the 3 way switches if you already have them. As you will see most 4 way switch wiring is placed between the wiring of two 3 way switches therefore a 4way switch is installed with two 3way switches. In doing so we will learn how to wire a 3 way switch as well. Connect the hot source to the common terminal on the first 3 way and the hot wire from the lights to the common terminal on the second 3 way.
