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Fan controller channel splitting help.

post #1 of 3
Thread Starter 
Can someone tell me if I'm moments away from strating a house fire with this fan controller please? The set up is as such - Akasa fc six controller - 3 channels used. 9 x Corsair SP120 fans PER channel. The fans are used in conjunction with the 7v step down resistor for each fan. The controller is rated 2.5a per channel, by my calculations 9 x SP120 @ 7v are only using .72a.


My understanding on this subject is pretty limited, so any advice is welcome.
Fused III
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Fused III
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post #2 of 3
well, even at 12V, the current draw is 1.62A (I took the rating of the high performance fans - it will be less for the quiet ones ) As you have the 7V resistor in place, it will draw even less, as you are adding resistance into the circuit. So even if you didn't have the resistors in place, you'd still have about 1A of headroom, which should be more than enough to cope with startup currents. So no chance of starting a fire! lol!

you'd probably get away with another 4 fans on there if you wanted.

basically, you have nowt to worry about. smile.gif

when you are adding fans in parallel like you have, you just add up the current ratings. you just have to leave a little lee-way for startup currents, as they are higher when you first switch on, so like in your case where the channels are rated 2.5A, i'd only load them up to about 2A smile.gif
post #3 of 3
Thread Starter 
Oh good! Now I can sleep at night without worrying about setting the house on fire.

Thanks for help!
Fused III
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Fused III
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