400W Metal Halide and Timer

[daver]

Hi Guys.

Just a little help, this is not my cup of tea.

Been asked to put a 400W Metal Halide Floodlight with a photocell on a workshop.

It needs to go off at 11 and back on at 6.

Is there a suitable timer to do this, or a combined timer and contactor.

All help appreciated.

Regards


Dave

 

[IQ Electrical]

Hi Guys.

Just a little help, this is not my cup of tea.

Been asked to put a 400W Metal Halide Floodlight with a photocell on a workshop.

It needs to go off at 11 and back on at 6.

Is there a suitable timer to do this, or a combined timer and contactor.

All help appreciated.

Regards


Dave

Try this: http://www.sangamo.co.uk/nmsruntime/saveasdialog.aspx?lID=3775&sID=2100004561

It'll switch 20A resistive so you'll be fine for your fitting.

 

[daver]

Many Thanks.

Just out of interest, what will these be drawing at start up. In other words, how many could I put on the 1 timer.

Regards

 

[Darkwood]

Because you are not given inductive switching capabilities i would ring tech' as these are the best people to advice you on this, its at the bottom of the sangamo link IQ sent you.

 

[IQ Electrical]

I should have said my info was from Sangamo, I wasn't just guessing!

20A Resistive load
15A Discharge lighting
12A Fluorescent lighting
12A Inductive loads at 0.8 power factor
5A Inductive loads at 0.6 power factor

 

[davelerave]

that sangamo doesn't seem to have a 'reserve'

RS | 17.5mm 24 hr time-sw. w/ reserve 230Vac | 271-366 | Welcome to RS Online

400/230 *1.8 *2 would give you about 6amp
http://www.tlc-direct.co.uk/Book/6.2.1.htm

AC-5a seems to be the category for discharge lighting if it's available
http://support.automationdirect.com/docs/capacitychart_a.pdf