4 Wire Dimmer Switch Diagram. A device like this should only be used with an incandescent light fixture. A rheostat or dimmer makes it possible to vary the current flowing to a light fixture thereby varying the intensity of the light.
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This is the wiring for a dimmer in a 4 way circuit. 4 way switch wiring 4 way switch wiring fully explained 4 way switch diagrams. Dimmer switch wiring diagram.
Three wire cable runs between all the switches and 2 wire cable runs to the light.
Fully explained 3 way dimmer switch wiring diagram will take the mystery out of wiring a 3 way dimmer switch. Wiring colors may vary. 3 way circuits can vary depending on the method used at the time the home was wired. This 4 way switch diagram 2 shows the power source starting at the fixture.
