1 Way Light Switch Wiring Diagram. Line diagram of a one way lighting circuit using in line method fig 1. Twinearth from the ceiling rose to the first switch and three wires between the switches usually 3 core and earth cable.
Incorrect installation will invalidate your guarantee. You have an incoming hot wire black going to one screw it does not matter if you use the brass or silver screw on the side of the 2-way switch and a black wire from the other screw on the 2-way switch going to the load light ceiling fan etc. Such an arrangement is not permitted as isolating only one of the circuits leaves live wiring depending on the position of the light switches.
A commonC L1 and L2.
Three way switches are used any time two switches are needed to control a light. More common in domestic properties. In the ceiling light fixture electrical box one black wire from a 3-way switch gets connected to the black LOAD wire on the light fixture. This is the diagram of what i tried the other diagram was the same with the red and white in.