Timer and contractor

[egginyourface]

Can I have feed from load side of a timer powering a contractor which when energised allows a different feed from a different distribution board to liven up a load.

What I have there is a normal light point with s/l and permanent feed. Customer wants it to work off timer. Only thing is no neutral. So I'm planning on taking permanent feed from a spur to contractor to timer then iin with my permanent frm lighting circuit and energise switched live, does this make sense

 

[egginyourface]

Its all supplied from the same phase. Its just that one board is rcd protected. Also board is well out of reach. Will try to take a picture tomorrow and post it.

Ive told the customer it needs to be moved as it would be impossible to locate a fault if i needed access to the internals of the board.

 

[egginyourface]

I will put a label on Conatactor casing to warnt that there is 2 supplies present

 

[Dan the spark]

Cheers all, im planning on doin as dan suggested. Thats what i wanted to know.

But why should i put it on a 3amp fuse??

Cos ur only using the timer to pull in the coil so there will be no load on this so a 3/5amp fuse will be plenty