LED & Fan group switching

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Old 06-06-13, 08:41 AM
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LED & Fan group switching

Hi Guys,
I just bought a lighting unit that has 9 x 50w LED chips, each is cooled by a 12V CPU fan.
The problem is only 1 isolator switch controls the entire unit.
That's 450W/hour is a lot of juice.
I'ed like to control each (LED/Fan) on its own switch. 9 switches, 10 if you include the existing isolator.
Is there a type switch that is best suited to this application?
 
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Old 06-06-13, 11:13 PM
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Welcome to the forums from overseas

Woody.... the sky is the limit. There are many different switches you could use. It actually depends on how you wanted to mount them.

Are you planning to build a box to house all the switches ?
A basic 3 amp toggle switch would work fine.
If you wanted to get fancy you could cut out holes for rocker switches.
 
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Old 06-07-13, 12:55 PM
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Thank for replying.. I had thought to make a switch box from mild steel and pop rivet the box to the side of the unit.
The main issue for me is to switch the LED circuit and the fan circuit together on one switch. So that I can control each pairing (1 x LED & 1 x fan) independently from the other 8 pairs.
Any thoughts?
 
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Old 06-07-13, 01:35 PM
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Use a 2-pole switch, DPST. Fan on one pole light on the other. If there is only one fan wire the fan side of the switches in parallel. That way any light switched on the fan will run.
 
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Old 06-07-13, 04:12 PM
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Ah! DPST That's what I'm looking for. I have been looking for the correct word/words. Cheers Ray, I'll now look for a tidy looking gang DPST of sufficient rating. "DPST" t well I never..
 
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Old 06-07-13, 06:17 PM
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If there are two "hot" wires to feed the power to each fan and LED group -one for the lights and one for the fan - you can splice each pair together with a pigtail and use ordinary SPST switches.
 
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