Four Way Light Switch Wiring Diagram. What is the black screw for on a 3 way switch diagram. This circuit can be extended to four five way switching by adding additional.
Four way switch wiring schematic. As it is three way switching wiring connection we have used two switches one is ordinary 3 way switch and the second one is 3 way pilot light switch. Two wire cable is run from the light to sw1 and 3 wire cable runs between the three switches.
The hot wire in the drawing is black and is.
On 4 l 2. Connect a test light to the ground side of source. This circuit can be extended to four five way switching by adding additional. 4 way switch wiring diagram power at light.