In message , chris French
writes
Well it sounds like some others at least will fit, which is what I
really wanted to know. I've since remembered that I have a spare unused
MCB in the greenhouse CU. Maybe MK, but I can't remember. I'll start by
getting that out and trying it over the weekend.

Well, took it out and tried it. It was a MK one and it fitted fine so
I'll probably just get some of those.
--
Chris French, Leeds