adding a 3rd switch to controllight

[marbab]

Hi, I am planning to add a third (intermediate) switch to control the light. Could you please advise on how this can be ?
Please see the current wiring diagram below.
Many thanks in advance.

 

[endecotp]

It needs to intercept the wires shown as yellow and blue in your diagram.

 

[marbab]

Many thanks. Would sth like that be ok?

 

[endecotp]

Yes - though you need to check the labelling of the terminals on the intermediate switch.

(Earth to new switch too, obviously.)

 

[marbab]

Many thanks, I will give it a go and let you know. Sorry, forgot about earth.