Yeah, youre right - its a surge protecting varistor. Dont know where I got the capacitor from - but, oh well.

Yeah, the rail isnt connected. I’m assuming there is an additional piece of copper on the plastic lid for which to bridge the area where there’s solder - looks quite intentional.

I think your confused by the blue capacitor which is attached to both live and neutral bus.

Also keep in mind the black box might be just a simple on/off switch.

Ugh, is this a standard Lemmy comment or something. Whole lot of these hypocrite comments in .world, please just cut the crap outside of that instance.