In message , r.galvin
writes
Hi

Quick question: whenever I've seen DP isolation switches in consumer units
the supply wires invariably enter the switch from the top, obviously because
the busbar is connected to the bottom. However, I'm just about to add an
isolation switch between the meter and a connection block and was wondering
whether I should maintain this convention, i.e. that the meter tails are
connected to the uppermost contacts of the switch?

I guess the switch might specify which are the Feed and Load terminals,
in which case I used them even if they were at the top. Nor reason
though why you couldn't feed the tails in from below and then run up
inside to the other terminals. Assuming there is enough space.


--
Chris French, Leeds