Yep does look a neat solution. They did used to post some photos of install in such a situation, but after A3 came into being they had been removed.

I queried the use of a plastic enclosure directly above a new A3 CU with my scheme (this will start the mud slinging!). Their guidance, was then (just after A3) was that the designer would have to consider reg 421.1.201, and whether it applied in such a case (yeah yeah, I know it applies to similar switchgear assemblies etc, etc).

I contacted Connexbox, who weren't impressed with that guidance. I did follow up the guidance from the scheme, but in the end didn't get the job. It was then I noted the pics removed from Connexbox site; wonder if they've been reinstated?

Not sure if they are the same pictures but they certainly have ones showing it installed directly above a CU altough not sure that its not a pre A3 plastic CU (but don’t use crabtree stuff much theses days myself). I had also been mulling over the issues around the material of the enclosure and A3
 
Not sure if they are the same pictures but they certainly have ones showing it installed directly above a CU altough not sure that its not a pre A3 plastic CU (but don’t use crabtree stuff much theses days myself). I had also been mulling over the issues around the material of the enclosure and A3

Ahhh, they're back then. Certainly removed from their site once. Perhaps they've had a word!

Certainly doesn't seem to be covered by 421.1.201, but I always thought it wasn't within the 'spirit' of A3, especially directly above a A3 CU.

If your in a scheme, email them & seek guidance, if your concerned.
 
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Options for Moving a CU
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