A two way switch uk schematic diagram of old wire colours.
2 gang 1 way switch wiring diagram uk.
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.
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In this video you will be guided from installation to the actual wiring and testing.
Schematic diagram of new wire colours.
Each of the gangs or switches above in fig 2 of which there are two work like this fig 3.
In position 1 when the switch is down or on com and l1 are connected together just like the one way switch.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
For simplicity the earth wire is not shown in the above diagram.
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.
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The cable going to the light switch is connected as follows fig 2.
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.
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.
Your lighting circuit must have an earth cable terminating in the switch back box and also at the switch plate if it is metal.
Connect the line brown wire to the l terminal together with the supply cable line wire and connect the blue wire with the brown slewing to the swl terminal together with the lamps line wire.