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Can my PSU run a 48v fan at full capacity? - Page 2

post #11 of 15
I just picked up one of these.

http://www.newegg.com/Product/Produc...82E16835213001

Fan Size
120mm

Bearing Type
2 Ball

RPM
5200 RPM

Air Flow
240.96 CFM

Noise Level
62 dBA

Power Connector
TAC 3 bare wires, optional 4+3-pin

Rated Voltage : 12V

Operating Voltage Range : 6 ~ 12.8V

Input Current : 2.45 Amp

Input Power : 29.4 Watt

Maximum Air Pressure : 27.48 mm H²O
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Kingsberger
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post #12 of 15
Thread Starter 
Ok, thanks guys. I didn't think it'd fly, but I figured I'd ask; the price was very attractive.
post #13 of 15
Quote:
Originally Posted by returned4good View Post
Seriously? I wouldn't think 12v would be sufficient.
12 volts wouldnt even START it. It REQUIRES at least 24 volts just to get it started, and at that voltage it probly draws around 2-3 or possibly more amps.
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post #14 of 15
24V fans usually tend to draw less amperage.

For example, a Sunon 12V blower I have draws 0.25A and 12V, while the 24V version of it draws only 0.11A.

Of course, it should be noted that this is nominal running current, and the startup surge current should be around 0.3 to 0.5A more; just for a split second.
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post #15 of 15
Quote:
Originally Posted by Volvo View Post
24V fans usually tend to draw less amperage.

For example, a Sunon 12V blower I have draws 0.25A and 12V, while the 24V version of it draws only 0.11A.

Of course, it should be noted that this is nominal running current, and the startup surge current should be around 0.3 to 0.5A more; just for a split second.
This is true. I have those Beta 5 nidecs, they draw 2.5 amps at 12 volts, and the NMB blowers I have draw 2.75 amps at 12 volts. they also have a slow start feature, where when you first turn them on, they spin up slowly to a certain RPM for a minute, then burst up to full RPM. both the beta 5s and the NMB's do this.
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