Is this junction box installation acceptable?

Personally I don't like the large hole at the top - far too easy for dust, dirt, grit and all the other detritus that seems to magically appear in floor voids, to fall down into the innards - and I suspect lever terminals will be less tolerant of that than traditional screw ones.But technically it's not an accessible top surface so no automatic IP4X requirement. You could argue about it not being suitable for the conditions, but it's a vague requirement rather than something black and white you can point to - any there are many other much worse examples out there that seem to prove themselves adequate enough. There's also a hint of unsheathed cables outside of the enclosure, but that might be the camera angle...

   - Andy.

Personally I don't like the large hole at the top - far too easy for dust, dirt, grit and all the other detritus that seems to magically appear in floor voids, to fall down into the innards - and I suspect lever terminals will be less tolerant of that than traditional screw ones.But technically it's not an accessible top surface so no automatic IP4X requirement. You could argue about it not being suitable for the conditions, but it's a vague requirement rather than something black and white you can point to - any there are many other much worse examples out there that seem to prove themselves adequate enough. There's also a hint of unsheathed cables outside of the enclosure, but that might be the camera angle...

   - Andy.