Four Way Light Switch Wiring Diagram. 4 way switch wiring diagrams national electrical code. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches.
Click here to access note. For complete instructions on wiring a basic 4 way switch see our wiring a 4 way switch article. The white neutral splices to the white to the light.
4 way switch wiring diagrams national electrical code.
Do you need a 3 way switch wiring diagram. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut. Rear view of an old four way switch with copper screw terminals on one side and brass screw terminals on. The white neutral splices to the white to the light.
