Jump to content
BETAQDAVE

electrical wiring for cooling fan

Recommended Posts

    I have a pair of small cooling fans from Radio Shack that have two wires for hook up.  Both wires are the same with no stripe or raised rib on the vinyl insulating cover, so I have no idea which wire is neutral.  If the wires are hooked up wrong, will the fan run in the opposite direction or does it mater?

Share this post


Link to post
Share on other sites

if the rotation of the fan blades is reversed, you may not have the desired air ejected forward at 100%..

Most fans have reverse polarity protection. If you hook it up the wrong way it simply does nothing. (we're talking about cooling PC fans?)

Edited by Captain Poison

Share this post


Link to post
Share on other sites

Do you have any numbers on them?

 

When you speak of neutral,  I'm thinking AC ...  Are they in fact AC with only two wires?   If so, polarity is not an issue.

 

If they are DC, polarity and how high your voltage is will matter..  Pretty much what Captain P said...

Share this post


Link to post
Share on other sites

This is a photo of the now defunct Radio Shack fans being employed for my spray paint booth. 

100_5564.thumb.JPG.753e5d747ca88322ec2dd819172d9ec3.JPG

    As you can see here this is an AC powered fan with just two leads that are identical.  Dispite the ends of the wires appearing to be aluminum they are, in fact, just braided copper wire with soldered ends.  The motor is sealed so I can't open it up to see how it is hooked up, so I don't have a clue which wire is which.  I really didn't want to go through all the work of wiring it up only to find out that I had them reversed and have to redo it.  At least the fan housing is marked with an arrow to show which way the fan needs to be mounted, but there were no instructions included with the fans.  I had even scoured the internet for more info, but alas the only info was where I could buy another one. :o

    So, thanks guys for the info.  Sounds like I shouldn't have a problem.

Share this post


Link to post
Share on other sites

It's AC. 115VAC (alternating current) it won't matter which wire is connected to the active or neutral. It will always turn in the same direction. You have to turn the fan around to get the direction of flow you want. There may be an arrow on the side indicating the direction of flow.

Share this post


Link to post
Share on other sites

alpayed is correct. There is no "polarity" with AC fans. The arrow shows which way the air flows.

 

In the US house AC wiring is polarized (white, black, green) because some electronics need to be wired a certain way. Motors do not. Just connect the two fan wires to the two "hot" wires from the plug. Don't connect to the green grounding/earthing wire!

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

About us

Modelshipworld - Advancing Ship Modeling through Research

SSL Secured

Your security is important for us so this Website is SSL-Secured

NRG Mailing Address

Nautical Research Guild
237 South Lincoln Street
Westmont IL, 60559-1917

About the NRG

If you enjoy building ship models that are historically accurate as well as beautiful, then The Nautical Research Guild (NRG) is just right for you.

The Guild is a non-profit educational organization whose mission is to “Advance Ship Modeling Through Research”. We provide support to our members in their efforts to raise the quality of their model ships.

The Nautical Research Guild has published our world-renowned quarterly magazine, The Nautical Research Journal, since 1955. The pages of the Journal are full of articles by accomplished ship modelers who show you how they create those exquisite details on their models, and by maritime historians who show you the correct details to build. The Journal is available in both print and digital editions. Go to the NRG web site (www.thenrg.org) to download a complimentary digital copy of the Journal. The NRG also publishes plan sets, books and compilations of back issues of the Journal and the former Ships in Scale and Model Ship Builder magazines.

Our Emblem

Modelshipworld - Advancing Ship Modeling through Research
×
×
  • Create New...