I don't think I've seen a service head like this before, I've only got the picture to go on at the moment and it's not that clear. I can't see a fuse anyway.
I'm assuming that what I can see in the picture is a cover that either opens or comes off and presumably has, or should have, a seal on it somewhere?
If this is the case then what sort of fuse / fuse holder would be used inside. Is there likely to be lots of exposed hazardous live parts under the cover?
Maybe if I could get a proper look it might be clearer to me, but at the moment I've only got the picture to go on.
Can anyone enlighten me please?