Meanwell Power Supply Fan
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you got the wrong mean well psu
https://www.meanwell.com/webapp/product/search.aspx?prod=UHP-750
or
https://www.meanwell.com/webapp/product/search.aspx?prod=HEP-600 -
The one I have is this one.
https://www.meanwell.com/productPdf.aspx?i=469#1
The fan is on the end of the case
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@arhi I printed the first one, didn't reduce the noise on a chinese knock off 24v power supply.
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I bought an RSP-500-24. Silent until the jet turbine of a fan turned on.
It was so loud I couldn't take the noise anymore and bought a fanless unit, the HEP-600-24. The entire case is a heatsink. There is no fan at all and it is silent. It was quite expensive though at more than twice the price of the unit with a fan.
It has been running my Ender 5+ with a volcano hotend for about 6 months with no issues.
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Meanwell make fanless, quiet and not-at-all-quiet power supplies. Datasheet says high power density, that usually translates to noisy fans; and noisy is quite subjective. But to echo arhi; if its just air then thats normal, but if it sounds like a dying giraffe it may have issues with bearings or balancing which is unlikely on a genuine supply.
Not sure if relevant for you but did you read the notes in the datasheet you linked to? At a glance it's not suited for use in the EU. (which is the case for a few of the meanwell supplies i looked at)
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Fans in power supplies can be very noisy, especially if the power is high and the fan is small.
Meanwell have the UHP series of fan-less power supply in a wide range of power specification. They are high quality, high efficiency, and very quiet.
https://www.meanwell.com/webapp/product/search.aspx?prod=UHP-750
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@tas said in Meanwell Power Supply Fan:
I bought an RSP-500-24. Silent until the jet turbine of a fan turned on.
It's super noisy, every minute or so, with a very small and high RPM fan that made my 3D printer very unpleasant.
It went back to Amazon and I got a fan-less one instead. -
@zapta said in Meanwell Power Supply Fan:
https://www.meanwell.com/webapp/product/search.aspx?prod=UHP-750
I bought it through amazon, and I have just heard back from the supplier who suggests taking the covers off and looking inside. Not sure if I want to do that as it may cause warranty problems. Also I don't think its the fan. sounds like transformer noise to me and its the opposite end of the case to the fan.
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I have one of these noisy MeanWell power supply. The issue is that the fan does not turn at all until the temperature goes above a threshold, then runs at full speed. This is non-sense, as it could run slowly all the time, at a lower speed to prevent temperature rising, remaining silent.
A solution would be to use a 24V fan and constantly powering it up under 12V (12V build from 24V)...
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I use ton of MW psu's and I never opted to use the ones with fan on the "front/back" as they have to be noisy as $#^^@$^@$ .. so that one is expected to be loud, too much power in a very small package
need to cool it down..@Stephen6309 I have not tried those mufflers as I said so have no clue if they work, ppl designing them claim they do. I used the cover replacement technique - you get the top cover off and you print replacement where you put 12cm fan
.. makes the case 2cm thicker (for the thickness of the fan) but quiet ... I also tend to select fanless PSU's and do the same thing to them, with a quiet slown down 12cm fan they last forever..
