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4-Way Switch Wiring 4 Switches
In the diagrams below, switch 1 common terminal connects to line voltage.
Switch 1 pair of traveler terminals connects to the top or bottom pair of traveler terminals on switch 2 .
The other pair of switch 2 travelers connect the traveler terminals of switch 3.
The other pair of switch 3 travelers connect the traveler terminals of switch 4.
The switch 4 common terminal connects to the load (lights).
Diagrams shown on this page are simplified for clarity. Electrical outlet boxes can have numerous NM cables going in and out. See Actual Switch Box Wiring Diagram.
Ground connection diagram is shown separately.
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