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

 

[J25GTi]

You will need to mark it up as dual supplies isolate else where etc or provide an adequate isolator to isolate all supplies.

Not quite following the rest of your wiring plan though got a diagram?

 

[Dan the spark]

Why do u need a contactor is it a large load of lighting that u will be switching?

 

[egginyourface]

Because theres no neutral from the lighting circuit and and only feed I have to operate timer is frm socket

 

[Dan the spark]

I'm guessing that there are other lights on the same circuit which is why u can't put the timer at the DB?

 

[egginyourface]

There's no neutral at switch

 

[J25GTi]

So put the timer at the DB where there is a neutral?

 

[Dan the spark]

Sorry if my questions seem daft just trying to set a picture in my mind of what u are trying to do. You can feed the time clock from a spur fused down to 3amps and then take a L to the A1 of the coil and N to the A2 of the coil from the load/switched side of the timer. Then put you lighting permanent feed into the top of the contractor and then your switch line at the bottom of the contractor. These really should be fed of the same db tho and if they are different phases labelled with a danger 400v sticker and also labelled with dual supply and a nice little label saying which circuits are in the enclosure

 

[Dan the spark]

So put the timer at the DB where there is a neutral?

If u are able to put it at the db then that would be the way forward but sometimes u can't if other lights that u don't want to be controlled by the timer are also on the same circuit

 

[Darkwood]

Egg and Dan before you go any further its a contactor not a contractor.... i hope its just a repeated typo and you dont call it that as it may may you look silly to the customer.... just a polite pointing of an error mate.

 

[Dan the spark]

I know it's a contactor darkwood, it's this bloody iPhone auto correct damn thing. check out post 3, I was on the ball with that one

 

[Darkwood]

lol yes did see that one just thought it was contagious, and within the post i was just making sure i hadn't contracted it....... (see what i did there )

 

[keniff]

Egg and Dan before you go any further its a contactor not a contractor.... i hope its just a repeated typo and you dont call it that as it may may you look silly to the customer.... just a polite pointing of an error mate.

you wouldn't want to put 230v through you as the contractor lol!

 

[Dan the spark]

I saw it :rolleyes4: Haha!

 

[egginyourface]

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??