If using this to feed a timed bathroom fan, for example, you would need the red and yellow to provide permanent-live and switched feeds, with the blue tagged black to become the neutral.
Well
actually you would need the brown and black to provide permanent-live and switched feeds, with the grey tagged blue to become the neutral on a straight substitution!
Just how excruciating is that!?!
I forsee many splinters as sparkies scratch their heads for years to come...
Paul, it occurs to me; how has your supplier got around the supplying of products that should not have been available after the 31st March?
[This message has been edited by uksparky (edited 11-07-2004).]