Wiring a Fan Question...

[eNatural]

Hey Guys, I went through my old boxes of stuff and found this awesome fan I once used in a PC case mod... but previously I had it wired to a 12VDC Converter and plugged directly to the wall, i Was wondering if It were possible to wire this to a molex connector and get enough voltage..

Here is a link to the fan:

http://www.comairrotron.com/dc_family.asp?FamilyID=58

 

[eNatural]

BTW, it doesn't show it in that link, but it has 5 wires: Red, Red+White, Black, Black+White and Blue... the sticker says: FPS RED + (5VDC) BLACK -, Blue (Output) The sticker on the front says 12 VDC @ 1.8 A

 

[Davegod]

STANDARD FEATURES
Size: 172mm x 51.0mm (6.75in x 2.00in)
Airflow: 235
Nominal Operating Voltage: 12

:Q

 

[Matthias99]

Originally posted by: eNatural
BTW, it doesn't show it in that link, but it has 5 wires: Red, Red+White, Black, Black+White and Blue... the sticker says: FPS RED + (5VDC) BLACK -, Blue (Output) The sticker on the front says 12 VDC @ 1.8 A

Well, black is ground. That one's easy.

The sticker would seem to indicate the red wire is for +5VDC, but it's a 12V fan... most likely it can take 12V or 5V on that wire. I'd start with 5V to be safe, and try 12V if 5V on that line makes it spin. Keep an eye on it to make sure it's not overheating the line, though.

Blue = output? From a fan? Either it's got a pass-through for another device, or that's the wire for an RPM monitor. I wouldn't worry about it either way.

No clue what R+W or B+W are. I don't know much about industrial fans, though. I'd try leaving them unconnected and see what happens.

You normally only need ground and power for a fan to operate. Molex plugs have four wires; black is ground, red = 5V, yellow = 12V. Connect the appropriate wires and it should work. Don't fry yourself.

 

[Nickel020]

I guess the blue wire is the RPM signal, there's nothing else that makes sense.