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Old October 5th, 2004, 07:49 AM   #1
Matthias von Zorn
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Small and Cheap 24V DC Power Supply

I am currently designing a production embedded PLC design controler that needs a small 24vdc power supply. The problem is, even small supplies are in the 100 to 150 dollar range. This project is very price sensative to stay feasible. I only need about 300ma of current on 24V. I was trying to get a din rail mount, or something similar. The whole thing will be packaged in a small panel. Are DIN mounts that much more expensive? Is there a better way to supply small DC amps than a din rail mount? Thanks in advance.

Matt
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Old October 5th, 2004, 08:01 AM   #2
Sekeeley
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Matthias

How about one of the simple plug in power supplies that you see all over. You'll need an outlet but that should be pretty cheap.
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Old October 5th, 2004, 08:39 AM   #3
Matthias von Zorn
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I havent been able to find them in 24v, just 12. And, there is no room for a duplex. This will be a sold as a package, too, and having a jerry rigged plug inside the panel wouldnt look to great. Now, if this was a project for my house, id do that in a heart beat.

Ive found a .3a 24v for about 40 bucks for a case mount, but I would think that something this small would be very cheap.. Hmm
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Old October 5th, 2004, 08:44 AM   #4
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I found these guys to be pretty cheap and have a quality product.

http://www.astrodyne.com
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Old October 5th, 2004, 09:32 AM   #5
Mickey
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Try this source

http://www.mcmaster.com/
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Old October 5th, 2004, 09:44 AM   #6
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AutomationDirect offers some in the $50 US range that are 24v 1A or thereabouts.
http://web6.automationdirect.com/adc...ies/Open-frame

DIN mount standard case for $57:
http://web6.automationdirect.com/adc...Slim-line_Case

Newark offers this one for $39.10:
http://www.newark.com/NewarkWebComme...SKU=52F101&N=0
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Last edited by rsdoran; October 5th, 2004 at 09:56 AM.
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Old October 5th, 2004, 10:12 AM   #7
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Huh, that was the first place I looked. Wonder how I missed them. Oh, thats right, I looked in thier paper catalog. Should have tried the website I guess.

Thanks guys.
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Old October 5th, 2004, 09:26 PM   #8
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"HERE" is a link comparing several popular power supplies, with ratings, prices, etc.

regards.....casey
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