How do I power this fan?

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sadd3j

sadd3j

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Joined 2003
jon.icestorm.ca
#1
I was wondering how I hook this fan up so that it'll run (what power supply if I need one, how to wire it.. etc).

I have the original "big" fan from the Elmo, as in not the regular DC computer fans. I have no clue about electrical stuff so I don't know how I'd go about wiring this sucker up. If you check the PDF file it shows you the two power prongs that you use to power it.

An externally hosted image should be here but it was not working when we last tested it.


http://www.nmb-europe.com/pdfs/airmovers/4715MS.PDF

Here are more stats on the fan:

model: B30-A00
voltage: 115V ~ AC
power (w): 10,0
current (mA): 140
rpm: 2600
noise: 37dBA

Thanks in advance,
-rep
 
#3
wow... yea watch out with tha!
Its says 110V indeed... but i -thought- i have the exact same one and its only 12V ...
Can a small fan like that really run @ 110V??
PLease get informed at the store where you bought it or an experienced electronics person or something... there are quite a few on this forum, they should see this and give advice.

Looks like 110V would be no prob, but i personally think its rather much... (but I'm no expert at all!)

Just be carefull with stuff like this
 
#4
as above....power it to the mains.....place a 1 amp fuse inline with the hot wire (black).....you can also buy a fan speed controller and place that in series with the hot lead to control the speed...a light dimmer will also suffice


DIRT®
 
#5
Well, I have this switch on the elmo, which says...

6A AC 125V
6A AC 125V

Because the fan says 140mA.. is it safe to hook the main power up to this switch, and then to the fan?

The switch only has two prongs.. I'm assuming that I plug the hot wire into one.. and then another wire from the other prong to the fan.. and then the neutral from the main right to the fan?

I also want to use the main power coming into the elmo for this fan, maybe another cpu fan or two as well as the ballast for the HQI.. is there anything special I have to do to be able to "split" the power coming in?

Thanks for your patience..
-rep
 
#6
what you said is correct on connection.....I would run the hot lead to one side of the switch and then maybe get a terminal strip to branch out your connections.....just make sure the switch is rated to handle the combined load

DIRT®
 
#7
Joe:

This is how I want to lay my system out.. There are two switches on the elmo, I was thinking of using one for the :bulb: (light) and one for the fans so I can keep the fans going for a bit after the light is off. I did a search for terminal strips.. seeing as I don't know what they are.. and this came up:

An externally hosted image should be here but it was not working when we last tested it.


I just want to make sure it's as simple as I think it is. Let's say I'm splitting two ways.. I'd take two of these terminal strips.. hook one to the hot wire and one to the neutral and then I can treat the strips as two "sockets"?

My question might seem kinda silly but the electrical part is the one part I want to be 100% on because well.. it'd suck to not be able to enjoy my projector due to being dead. :goodbad:

Does this look right:
An externally hosted image should be here but it was not working when we last tested it.


Thanks for all your help everyone!
-rep
 
#9
Hmm...

If I were doing this, I wouldn't use that tag strip as it is just about impossible to shield against an accidental touch. The fan should also have a seperate inline fuse in case it stalls and burns out - this could be a fire risk.

I would just put two wires into a shielded crimp connector that would fit on the terminals of your input connector, and use the same connectors on the back of the switches.
 
#10
I'm not sure what you mean about the tag strip (another name for terminal strip?), (I wasn't totally planning on using that, it's just the first thing that popped up on google).

Would it be better to use something like this?

An externally hosted image should be here but it was not working when we last tested it.


If not.. what's a safe thing to use.. I definitely don't want to have my projector be any kind of hazard.

Again, thanks for the info.. also.. is there a good book or source that I can read about this? Like wiring for idiots or something 🙂 I'll look into it.. preferably something free.. but then again.. I am at my university library 🙄

Thanks again,
-rep
 
#13
OMHO it seem like a compuiter power supply is one of the most impractical ways of powering a fan. First of all, the thing s a huge. On of those would take up a hell of alot of space in his ohp. Instead of using a computer power supply, for about 1/6 of the size, you can install a 120 volt to 12 volt transformer tht will do the same thing.
 
#14
true, but have you ever take a pc power supply appart. by this i mean strip it from all its casing and junk. it'll be rather small and it has lots of leads for power distribution.. also remeber that this diy-er is not electrically handy.


ap0
 
#15
well i dont think 110ma is going to draw the power bill up or over current that switch now is it? lol as for the conectors well how manny times are u going to put your hands in there? i wouldnt go the tap terminals id rather solder and heat shrink but thats me and my tools to boot, probally the easiest way is a terminal block but as dirt said he dont like them i dont realy like them either cos if u do the wire up that bit tight the wire can break off, by all means fuse the incoming active, if somthing does go wrong in there u not only save your house or u but your projector.

happy diy
Trev
 
#18
i went to the store to get a 12V transformer but i quickly decided i'd settle with the size of a pc PSU because a transformer costs a lot.
One PC PSU provides enough power for my 6 pc vents, my 12volts mini amplifier and the lcd screen itself.
Only problem is that i need to keep an old motherboard connected to it so the PSU could run...
There is a trick to get it runing without the MoBo but i dunno how. Someone on this forum once told me i should connect the green wire to some other wire but there is NO green wire at all 🙁
HOW to fix this?
 
#19
There is a way of crossing two wires to jump start the ps, but acording to some web sites, this may damage your powersupply. Do a search on goolgle. Also, an easier fix is going to the dump and looking for old AT computers and ripping out the powersupplies. Lol, at this ham radio flee market (hasstraders) i used to go to, there was tones of people selling old computer stuff. At the end of the flea they throw much of it out and there is tons of computer parts people just leave in the junk bins. There must be 100's of AT power supplys layin around 🙂. Hell, you could build your self a state of the art 386 for free!
 
#20
EERRRRRRRRRRRRRTTTT!!!...how did this thread lead to a computer or 12v supply...the young lad has a 120 vac fan..and a response to a post by me....a 12 volt fan draws more amperage than a 120v one with the same cfm rating....heck dont confuse someone with a minor question and propose all this.


DIRT®
 
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