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.
1 gang 2 way switch wiring diagram uk.
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.
Wiring diagram for 2 gang 1 way light switch.
Line diagram of a one way lighting circuit using in line method fig 1.
When l1 is off l2 would be on.
Some brands of switch may have slightly different labeling on the terminals such as c l1 l2 or even l1 l2 and l3.
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.
Wiring a two way switch.
This is very useful in a number places particularly hallways and stairs.
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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.
Two way switching allows you to control a light from two locations.
Wiring a two way switch.
There are two wiring options for this.
A two way switch has 3 terminals.
The cable going to the light switch is connected as follows fig 2.
When l1 is on l2 would be off.
The red wire from the feed cable is connected to the top terminal the red wire going to.
A common c l1 and l2.
I have an existing light switch and i want to add a second switch for a new light that will be operated separately.
In position 1 when the switch is down or on com and l1 are connected together just like the one way switch.
Two way switches have a com terminal as well as l1 and l2 terminals.
Two way switching means you can switch the same light fixture from two switches that are located in different sides of a room.
To switch from two locations you ll need 2 two way switches and wire them together in a particular way.
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A two way light switch has three terminals and is quite like a sigle way switch but now the off position can be utilised also.