The No.1 Website for Pro Audio
 All  This Thread  Reviews  Gear Database  Gear for sale     Latest  Trending
How to power rack panel fans?
Old 11th July 2005
Gear Maniac

Question How to power rack panel fans?

Ηere's the deal- I want to add a rack panel with fans to cool one of my racks.
I have the Adam Hall 3U rack panel (for 2 fans) and two Zalman "quite" fans (12V, 0.25A).

My question is, how can I power the fans, so that I can switch them on/off when I want to?

Any ideas and suggestions welcome.

Thank you!
Old 11th July 2005
Lives for gear
brianroth's Avatar

For 12VDC, look for a power supply intended to drive automotive audio electronics from 120 VAC mains. I have one here that came from Radio Shack (and no idea HOW it came into my possession!).

Old 11th July 2005

If you have a computer in there, you could add a plug to the case, wire the +12v from the case supply to it, and have a 12v output. Then, you can run a pair of wires from there to a switch (that you can mount on the fan pannel). The other side of the switch can be connected to the fans.

You can substitute a 12v wall wart as well.


Old 12th July 2005
Gear Addict
Waylon's Avatar

Although it is not cheap, Middle Atlantic makes a peice that is designed to do exactly what you speak of.. it has a variable speed fan power supply triggered from a heat sensor and even tells you the ambient temp in the rack.

the preassembled unit is also cool if you dont already have the fans:

To many, I know Middle Atlantic is somewhat the MONSTER fo the rack industry, but there are products that they have that really shine, and this is one of them IMHO.
Attached Thumbnails
How to power rack panel fans?-ma-cooling-unit.jpg  
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.

Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Forum Jump
Forum Jump