# UR3 power supply **URL:** \ **Category:** Technical Questions\ **Created:** [March 24, 2025, 10:05am UTC](https://forum.universal-robots.com/t/ur3-power-supply/39226 "2025-03-24T10:05:37Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![n.dubovs](https://avatars.discourse-cdn.com/v4/letter/n/c67d28/32.png) [@n.dubovs](https://forum.universal-robots.com/u/n.dubovs)\ **Post date:** [March 24, 2025, 10:05am UTC](https://forum.universal-robots.com/t/ur3-power-supply/39226/1 "2025-03-24T10:05:37Z")
Hello, I am currently working on a university project that involves integrating a UR3 arm. However, the unit I have access to is set up as a DC-DC version, and I need to convert it to an AC-DC configuration. Unfortunately, I have not been able to find any information on the specific power supply units used in the original AC-DC version. Any information will be appreciated P.S. i read all the service manuals i could find but non of them specify the PSUs, only that it is 48v and 12v. ---
**Author:** ![nrivas1](https://avatars.discourse-cdn.com/v4/letter/n/779978/32.png) [@nrivas1](https://forum.universal-robots.com/u/nrivas1)\ **Post date:** [March 24, 2025, 12:57pm UTC](https://forum.universal-robots.com/t/ur3-power-supply/39226/2 "2025-03-24T12:57:19Z")
I think this [Article](https://www.universal-robots.com/articles/ur/robot-care-maintenance/power-supply-unit-psu-for-ac-to-dc-for-testing-oem-dc-controller/) may be what you are looking for in this case. I have not used the DC-DC version but this is what I found. ---
**Author:** ![n.dubovs](https://avatars.discourse-cdn.com/v4/letter/n/c67d28/32.png) [@n.dubovs](https://forum.universal-robots.com/u/n.dubovs)\ **Post date:** [March 24, 2025, 2:54pm UTC](https://forum.universal-robots.com/t/ur3-power-supply/39226/3 "2025-03-24T14:54:34Z")
In that article I was only able to find a specific 1500w PSU that is used for UR5 and above, which seems like an overkill for the UR3. Currently, the system is running on the SD-1000L-48 and RSD-60G-12. If I am unable to find the exact PSUs used in the original AC-DC setup, I am considering sourcing AC-DC equivalents of these units instead.