I am changing light switch in my apartement (based in France). When removed the old one, I can see that I have 2 Red wires (which I take it are Live or Hot wires) and 2 Blue ones (Neutral). Now I am not completely sure how would this work based on this outlet on the picture.
I tried connecting 2 reds into Red positions, marked as L, and 2 blue ones into positions 1, however my electricity went off (main board switched off), which leads me to believe this was wrong choice. I don't really want to experiment without understanding what am I doing. Can anyone explain what those mean actually - 1 and 2 in relation to L and if I am able to connect things properly based on the image below?
This is how previous set up looked like. Here is the picture of the connection (badly made one because I had minimal space available and I thought I'd remember the positions, but I think there I can see that 2 Neutrals were together and 2 Live ones apart, one in L and another one in 2).