Timed isolator for shed supply

[Theorysparky]

A customer wants a timed feed to an outhouse where theres a sauna (infra red)

he wants this in the garage so that its not left on when the kids forget to turn it off in the shed

any suggestions on this ???

the power in the sauna is 13amp plug

2 doubles and a few lights max load 4kw

 

[steptoe]

how long does he need to time?

a normal one hit timer on a contactor would do, but Ive not used any that go over an hour yet, so dont know if the the max time available off the shelf.

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or how about an occupation sensor/contactor, with a time delay on it?

 

[Andy™]

what about something like this to feed a contactor



walk in, hit switch, timer starts

 

[m4tty]

If he's growing hi-grade then the timer needs to stay on for 18 hours at a time lol

 

[Andy™]

or one of these?

 

[kme]

You can get the one hit timers that do 1, 2 or four hours, as well as an adjustable, din-rail universal timer - feed through a contactor - job done

 

[Andy™]

If he's growing hi-grade then the timer needs to stay on for 18 hours at a time lol

isnt it shorter than that, to give it '2 days / nights' in one day?

 

[Sidewinder]

Easily doable Theo, decide on what you want to achieve first then we can move on.

Timer & contactor would be fine.

Central heating timer could do this?

Contactor can be small & in an enclosure alongside.

 

[Theorysparky]

if hes trying to grow high grade he would be nicked on the first

the rozzers chopper would be out.....

 

[steptoe]

^^^ thats what I was thinking, and now I think more they are usually 1press 1hr, on 2nd press 2hrs 3rd press 3hrs and on fourth press resets to 0 again.

 

[Theorysparky]

Easily doable Theo, decide on what you want to achieve first then we can move on.Timer & contactor would be fine.

Central heating timer could do this?

Contactor can be small & in an enclosure alongside.

so if i had the timer then the contactor and the timer activated you would need to reset the contactor each time to reset the feed to the shed ?

 

[Sidewinder]

No mate you could programme the timer to turn the contactor on and off, just like it turns any other load on and off, so the supply could be on from 18:00-22:00 every evening, automatically for example.

 

[professional]

Electrisaver Immersion Heater Booster

and a contactor ....

 

[OnOff]

TLC do........."shed" loads:

http://www.tlc-direct.co.uk/Technical/DataSheets/MK_Sentry/Timeswitches.pdf

Would as said above need a contactor to handle the 4kW............

 

[professional]

Unless space was a real issue I would not use such a product as they are expensive to replace.

 

[NozSpark]

[quote name='Andy

 

[Theorysparky]

The 4kw is only the max demand of the shed

the cct he is concerned about is 2kw so i thought about this one

20 Amp 2 Pole Contactor - 1 Module

 

[Sidewinder]

That would do mate, but there could be easier ways unless you have space etc. in the CU.

As I say think about what you want to achieve first.

 

[Theorysparky]

no room in the cu so that would be in a seperate housing

will think it over

 

[Bacon]

[quote name='Andy