Help: What shelly relay to use (and what wiring is this?)

    Hi!

    I am really a smart home beginner, and also not really an experienced electrician (au contraire!). I generally think that I can manage the cables and will be careful enough, but I am a little bit at a loss with the wiring. Maybe I'm a little bit too careful, but given it's working with electricity, I'd really like to understand what's happening here before I try anything.

    Following questions:

    1. Help me understand the existing wiring - I think it's the most basic wiring there is, except, there is one cable I don't understand.

    2. What Shelly relay should I use then?

    3. How should I wire the relay given there is this odd other cable?

    The switch:

    I have a combined light switch / power socket.

    • The power socket has permanent power, i.e. not being switch on/off by pressing the button
    • The light switch controls:
      • A ceiling light
      • A bathroom fan, which automatically switches on after the light is switched on for 60 seconds, and then switches automatically off AFTER the light has been switched off for 5 minutes or something like that
    • It's the only switch. That's why I think it should be totally basic, but... then...

    When I look at the wiring, it kind of all makes sense, except for the one cable. Here the screenshots:

    From the front: PE bottom right, N above it, L bottom right

    smarthome-forum.eu/attachment/52385/


    From top left view:

    smarthome-forum.eu/attachment/52386/


    From top right (light grey should be N), don't know what that black cable is doing there...

    smarthome-forum.eu/attachment/52387/

    I think I found the a wiring diagram that basically reflects what I'm looking at, except for that one cable:

    Screenshot 2024-02-11 at 11.39.23 PM.png

    Anyone could help me out here?

    Thanks much in advance!

    Funaki

    Hi and welcome to the forum. :)

    Zitat

    I am really a smart home beginner, and also not really an experienced electrician (au contraire!). I generally think that I can manage the cables

    Sorry, but the forum is not an education center for electrician.

    Learning time is 3,5 years.

    Please, in your own interest, take help from an electrician or a friend with experiance.

    Thank you .

    Hi Stefan,

    I did not come to this forum here to be get a training to become an electrician. I understand the basics of electrical wiring fairly well, but I was honest enough to disclose that I have little hands-on experience. My real question is around the wire coming out of the "R" connector. I did also search the forum quite a bit, and I saw that very similar questions have been answered before.

    Maybe I asked my question incorrectly, but is it really so basic that it doesn't deserve an answer?

    Best regards,

    Funaki

    Can dou please upload this pictures new. It seems, something was going wrong and they are not visible.

    Hi Stefan/all,

    Here the pictures and then the diagram I am referencing to. I boxed in orange the cable that doesn't "fit the bill". I just realized in my last post I wrote "coming out of the "R"", but it's really the one below. I believe that if I follow the wiring diagram, this is probably going to the bathroom fan, but this is where I would want some affirmation that this is what it is.

    Appreciate you looking into this and understand that this is probably still relatively basic.

    Thanks

    Funaki

    Screenshot 2024-02-13 at 7.21.01 AM.pngScreenshot 2024-02-13 at 7.21.17 AM.pngScreenshot 2024-02-13 at 7.22.07 AM.png

    Screenshot 2024-02-13 at 7.24.17 AM.png

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