Four Way Light Switch Diagram. Power from light fixture to light switch. Do you need a 3 way switch wiring diagram.
Click here to access note. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. This 4 way switch diagram 1 shows the power source starting at the left 3 way switch.
Keep in mind that each light switch will count as two wires when calculating your box fill.
The white neutral splices to the white to the light. Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. At the center box with a four way switch black and red from the first box goes to two terminals with the black and red going to the third box to the other two terminals. The 4 way is used when you want to control the light or lights from two or more locations.
