2 Way Switch Diagram Light Loopback Wiring. Cable d fig 2 is a three core and earth this is the 3 wire control that links the two light switches together. How to connect 2 way switch wiring using three wire control.
Com on the first switch connects to com on the second switch l1 on the first switch connects to l1 on the second and l2 on the first switch connects to l2 on the second. Black wire power or hot wire. Double gang switch face plate.
Both of the three way switching diagrams can be extended to four five or even more switches.
All earth wires should connect to the earth terminal in the switch back box and if you are using metal. There are two wiring options for this. Two way switch can be operated from any of the switch independently means whatever be the position of other switchonoff you can control the light with other switch. This is a completed circuit.