A one way light switch is quite easy to wire up.
2 gang 1 way light switch wiring diagram uk.
When the switch is on both terminals are connected together.
A two way switch has 3 terminals.
In position 1 when the switch is down or on com and l1 are connected together just like the one way switch.
Line diagram of a one way lighting circuit using in line method fig 1.
Wiring a two way switch.
2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching.
Each of the gangs or switches above in fig 2 of which there are two work like this fig 3.
Although technically it doesn t matter which way round you connect the wires it is best to stick to convention and connect the permanemt live from the supply to com and the switched live to the lamp.
To switch from two locations you ll need 2 two way switches and wire them together in a particular way.
2 gang 1 way light switch you don t see these as much now days as many manufactures only make 2 gang 2 way light switches that serve the same purpose you just don t use the third l2 terminal on each gang however i thought we would include it just in case you come across one.
The red wire from the feed cable is connected to the top terminal the red wire going to the light is connected to the bottom terminal the.
There are two terminals in a one way light switch.
A common c l1 and l2.
The cable going to the light switch is connected as follows fig 2.
Two way switching allows you to control a light from two locations.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
In position 1 when the switch is down or on com and l1 are connected together just like the one way switch in position 2 when the switch is up or off com and l2 are connected together.
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Typically these terminals will be marked com and l1 sometimes l1 and l2.