In article ,
Nathan wrote:
It has 5 terminals labeled:
L N COM NO NC

COM, NO and NC refer to the switch part which is totally independent from
the mains supply - so you could use it for say low voltage work.

COM is common - the feed into the switch

NO is normally open, so the one you'd use to switch the load *on* when it
operates, ie the way you want.

NC is normally closed, so you'd use this to switch the load off, and you
can ignore this.

--
*What was the best thing before sliced bread?

Dave Plowman London SW 12
RIP Acorn