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

From top left view:

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

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

Anyone could help me out here?

Thanks much in advance!

Funaki

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

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