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Channel Wattage on controller

post #1 of 6
Thread Starter 
Hello

I wanted to know how many watts on a single channel does a fan controller need to have in order to handle 6 (1850RPM GTs) 120mm fans?

Cheers
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Normandy
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post #2 of 6
Thread Starter 
Anyone?
Normandy
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Normandy
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post #3 of 6
Well its different - what wattage do each 120mm use? .. Multiply by 6 and you have an answer ..

Bu besides that - I doubt you will ever get in trouble smile.gif .. Really
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post #4 of 6
Gentle Typhoon (1850 RPM) specs on Scythe's website:
12V, at 0.083 A

individual power then is:
P=I*V
P=(0.083 A) * (12V)
P=0.996 Watts

for six
5.976 W, at 0.498 A

Keep an eye on the max current capability on the fan controller.
for example, if you do this on the "old standby" the Sunbeam Rheobus, know that it has a "max current" of around 1.67A. If you stick 6 fans per channel, on all four channels you'll be exceeding what the device can safely give.

Not saying the controller will explode or anything, if anything it'll heat up and eventually burn itself out. the Rheobus isn't a PWM controller so there's already a lot of waste heat being burned off. Simply put, I don't know what it'll do I just don't like loading something more than it can handle.
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post #5 of 6
Gentle Typhoon 120mm 1850rpm:-

At startup, each pulls 0.36A @ 12V (ie 4.3W).

When running, each pulls 0.083A @12V (ie 1W).

For more details, see here:http://catalog.nidec-servo.com/digital/english/general/pdf/D1225C.pdf
post #6 of 6
Quote:
Originally Posted by windfire;13617974 
Gentle Typhoon 120mm 1850rpm:-

At startup, each pulls 0.36A @ 12V (ie 4.3W).

When running, each pulls 0.083A @12V (ie 1W).

For more details, see here:http://catalog.nidec-servo.com/digital/english/general/pdf/D1225C.pdf

oh hey, or I could've looked up the datasheet doh.gif
hahaha, mmm I need more coffee methinks
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