Hello,
Just moved into a new house and the entire light switches board is made up of the Merlin Gerin Multi9 interuptors as in the enclosed image.
How would one go about integrating these? Each interuptor separately or is there some piece of hardware I can put before all of the switches to then control all of them?
Really out of my depth here …
Regards!
This one can manage 4 of them: Sonoff | 4CH Pro R3 | Wifi | 433Mhz | Wifi + RF | Modules | Sonoff It is possible to mount on DIN rail next to the MG’s
So for each 4 of the MG’s you will need 1 of the Sonoffs.
There are also those 8 channel boards, you will need a little DIY knowledge for them: ESP8266 Wifi 8 Kanaals Relais Module ESP 12F Development Board Voeding 5V/7 28V Draadloze Wifi module|Relays| - AliExpress
Wow! Thanks so much for this!
Still new in the HASS world, this will certainly help!
Regards!
I can later on help with making schematics for you, how to connect it electrically. Just not with the ESP8266 integration, as I don’t use it. But there are a lot of ESP fan’s around here, that will get sorted out…
So I have the Sonoff now, but still confused on how to wire this. The MG has a control circuit (black) and a circuit going to the lights (blue-brown). Are there wiring diagrams or … available for this?
Thanks in advance!
which MG model number exactly did you get?
The ones in the picture are my MG’s, is there a model number on there?
Hello!
Thx, this looks fairly simple indeed. What if for every of those lights there is also still a Niko pulse switch in the circuit that I would stil like to use next to the Sonoff? Is that possible?
Thanks so much!
OMG, are those MG’s pulse operated? If yes, it still will work with this schema, I made, but it will take some work on the software side. You will need to make some automation’s to simulate pulse buttons, as a standard HA light switch will send power to the MG continuously instead of a short pulse.
Still doable, but need some code fiddling…
Adding the pulse buttons will go like this, but it will be hard to get HA to know, a button has been pushed, so the light state is on…
I did not notice, these MG’s are pulse relays from the picture 
Like said, it is possible to get this working, but on the software side it needs some work, and I can’t help you with that…
Hi there!
You already helped a LOT! The big issue will probably be detecting state of the MG.
Thanks for the insights!
