http://www.hager.co.uk/files/downloa...ower_guide.pdf

is a good read.

OK thanks. Score that as one head splatted.

Dunno how old the article (ie table 1) is but I am
sure that SBC and SES were all allowed bigger than 6A MCBs in the
17th - I need to double check that though.

Yes, I think it's reg. 559.6.1.6 but don't have the final regs to
check/quote.

--
Robin
reply to address is (meant to be) valid