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Wiring Dimmer in multi-gang install


NickJ82
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Hi, sorry I know this is asked a million times over, I have installed Dimmer 2 modules in my house before no problem but now I have the desire to instal dimmers in a room with a 4 gang switch.

 

I do not have enough space to fit 4 dimmer modules in one box, so the overhead lights these will go into the ceiling rose.

 

The 3 separate wall light circuits will have remote (but accessible) dimmer locations.

 

My problem is that there are 5 wires into the switch for the current setup (common live feed). I can rob an earth 😬 but would rather not do that.

 

So I cannot have totally independently wired S1 & SX for each of the three switches.

 

So can I utilise a common SX feed to the switches? Alternatively I can wire live directly to the switches and have 3 S1 cables back to the modules. I know Fibaro are not keen on that setup though it works.

 

I cannot pull another cable through the wall.

 

It would be really helpful if Fibaro would provide some transparency on the internals of the dimmer, and what features may not work correctly by omitting the SX.

 

Thank you in advance for your help.

Edited by NickJ82
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perhaps you can use a wall controller? 1 push 1 light, 2 push second light etc

aeotec has a 4 button wall controller

here is a 8 button

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  • 44 minutes ago, akatar said:

    perhaps you can use a wall controller? 1 push 1 light, 2 push second light etc

    aeotec has a 4 button wall controller

    here is a 8 button

     

    Thank you for the suggestion but it’s a period house and we are having toggle type switches.

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    If you look at the wiring diagrams, you can't use a common SX.

     

    Never rob an earth 😲

     

    You could solve your situation using remote relays. Each wall switch powers the relay coil, and the relay's contacts switch s1 to sx.

     

    Consider that you can add all your devices in a third location, eg ceiling space hatch, by extending switch and luminaries wiring.

     

    Dont forget you'll need a bypass per dimmer if your load is below 50w.

     

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