2 Gang 2 Way Light Switch Wiring Uk. The next length of the twinearth cable will run from the light to the first two way switch. To switch from two locations you ll need 2 two way switches and wire them together in a particular way.
Some brands of light switch may have slightly different labeling on the terminals such as c l1 l2 or even l1 l2 and l3. A 1 gang switch will control a single lighting circuit and with a 2 gang switch you can control two lighting circuits and so on. Need help on wire terminals as new is different.
Connect the pigtail to the ground screw on the double gang switch.
I think com to coms on. However if you need two switches to control a single lighting circuit such as in the case of at the head and foot of stairs so you can switch the lights on and off in both places you need to understand a 2 way switch. Secure the switch to the box with the top and bottom screws. Turn off the power going to the circuit you ll be working on at the circuit breaker.