I am looking for help with setting up a few large arrays of 120mm fans.
1st: 4 banks of 7 fans, 28 total.
These120mm fans are each rated: 12VDC (7.0v to 13.8v range), 0.14amp, 1.68watt.
That should total 3.92amps and 47.04watts. If I am not mistaken and please correct me if I am wrong, I should be able to power all of these fans with an off the shelf 12v 480w computer power supply with a little modification to the power supply (to make it turn on without a mother board) and some extensive wiring
. Is there any way to control the speed of all 28 fans? Maybe a rheostat or potentiometer (preferably not a huge one)?
2nd - This one is a bit more complicated. 4 banks of 5 fans, 20 total.
These 120mm fans are each rated: 48VDC (24v to 55.2v range), 0.39amp, 18.7watts
If at all possible I would also like to control the speed of these fans like stated above but in two banks of 10. If it is possable then each bank should total 3.9amps and 187watts. If not together all 20 fans would be 7.8amps and 374 watts.
I have 2 Gennssi 48V DC 7.3A 350 power supplies on the way
Are these the correct power supplies for the setup I am trying to accomplish?
I also have never wired a power supply like these before or much of anything for that matter just some basic wall switches
, wall outlets
, ceiling fans
, A/V equipment and custom computer builds in the past. Would I be able to wire a 3 prong male power socket (like on the back of a computer power supply but with a switch) to each supply and use standard power cables
to power the supplies?
Maybe like this:
Amico AC 250V 10A 3 Terminals Rocker Switch C14 Inlet Male Power Plug
Are there any tips or suggestions for a project like this that you could share?
Thank you in advance for any help you can provide,