Wiring 4 Way Switch Diagram. 4 way switch wiring diagram with the power feed through the light. At the risk of being repetitious make sure the power is off before making any connections to an existing circuit.
A 3 wire nm connects the traveler terminals of the first 3 way switch and the first 4 way switch. 4 way switch wiring diagrams national electrical code. For complete instructions on wiring a basic 4 way switch see our wiring a 4 way switch article.
The hot source is connected to the common on the first switch and the hot terminal on.
A 3 wire nm connects the traveler terminals of the first 3 way switch and the first 4 way switch. At the risk of being repetitious make sure the power is off before making any connections to an existing circuit. 4 way switch wiring with light first. A 3 wire nm connects the traveler terminals of the first 4 way switch and the second 4 way switch and so on.
