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Is the Prusa MK3 PSU UL Listed?  

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roddey.s
(@roddey-s)
New Member
Is the Prusa MK3 PSU UL Listed?

Title says it all... Does anyone know if the MK3 Power supply is UL Listed? Would someone be able to provide a part number? Thanks!!! 😀

Postato : 04/02/2019 4:36 pm
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Illustrious Member
Re: Is the Prusa MK3 PSU UL Listed?

A while back I did some research and found nothing that indicates the power supply is UL, nor any Canadian listings. The printer is CE marked as a LOW VOLTAGE device, I suspect testing for AC side electrical issues is limited.

To quote the Prusa CE test form: The device is not subject to the type testing ... I read that as the AC side is untested by cert labs.

The power supply is a generic INTERNAL 24v LED supply, and Prusa adds the power switch and inlet. I found a link to the PS vendor's page on one of these forums. It's a Czech company. The PS CE spec sheet and CE sheet for the printer are attached. PS is EMC (electromagnetic) and LVD certified to IEC specs, as an internal component.

PS Web Page:
https://www.t-led.cz/p/led-zdroj-24v-240w-vnitrni-5525

Conformance Document for Printer and PS (download 02/05/2019):

Postato : 06/02/2019 2:17 am
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