Important Information about using Multi Rail Power Supplies
Depending on the age of your MEAN WELL Multi-Rail power supply, you may need to ensure all outputs have a load that falls within the stipulated current range shown in the data sheet.
Failure to do so will result in the power supply not working correctly.
The below table is an extract from the data sheet for the MEAN WELL RQ-125B power supply. In the table you can see the current range for each of the outputs (channels). The load on each of the outputs must fall within the stipulated range.
Note: With some models, there may be a particular channel that is required to have load on it for the power supply to function correctly.
This applies to all series of MEAN WELL power supplies listed in the below table, which were manufactured before the date shown.
| Power Supply Model Number | Date Revised Model Released | Lot Code of First Batch of Revised Model |
|---|---|---|
| RD-35 | 08/06/2019 | Y1909B |
| RD/RID/RT/RQ-50 | 08/06/2019 | Y1909B |
| RD/RID/RT/RQ-65 | 08/06/2019 | Y1909B |
| RD/RID/RT/RQ-85 | 08/06/2019 | Y1909B |
| RD/RID/RT/RQ-125 | 08/06/2019 | Y1909B |
For some models manufactured after this date, there is a recommendation that channel 1 is to at least 10% of its rating. Refer to the notes in the data sheet to see if this applies.
Power Supplies Australia are Australia’s prime stockist of MEAN WELL power supplies.
We are on hand to help with any questions you may have.
If you have any questions about using multi-rail power supplies, please do not hesitate to contact Power Supplies Australia.
