Dimmer 2 wiring, no neutral, two way, two wires

[dkeenaghan 0]

Hi,

 

I have a setup with two switches that control a light (actually two lights in series), there's no neutral at the switch and only two wires connecting the two switches. The attached diagram shows the situation.

 

Is it possible to install the Dimmer 2 (FDG-212) at either switch (if so how?) or do I need to look into replacing the switches with momentary switches?

 

 

 

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Edited September 11, 2020 by dkeenaghan
added model number

[Tim__ 113]

You should take a look at the below recent post:

 

 

[Flix123 1]

Dimmer 2 goes behind the switch that connects directly to the light (right one). You don't need neutral there but you need a permanent live (a live that is not switched by one of the switches)  which can be difficult to find behind the right switch. You have this of course behind the first switch (the left one), but the dimmer also needs a direct connection to the light (not via the switches), so you cannot put it behind the left one. You could use the earth the wire to bring the Live across from left switch to right switch, but that is highly dodgy and not recommended, and someone will shoot me for even saying that  

About momentary switches: Also an option, quite different wiring though: this would give you the possibility to dim the light from both switches, so its a better solution. I have this all throughout my house

[akatar 207]

you can place it behind switch (the right one)

But most of the times dimmer2 needs a neutral, that is something you don't have, if it doesn't work i would place the dimmer2 at the light and use 2 wallcontrollers to control the dimmer2