To enhance the automation production efficiency, MEAN WELL changed the serial number method of
small volume module type power supply, IRM-01~60 series. The original serial number stickers will be
replaced with laser engraving method with factory, year and week on it. In the interim, the coding method is
adopted as yyWww(year and week). However, since MEAN WELL has multiple manufacturing factories,
the final coding method will be Syyww (factory site, year and week). After the change, customers can still
trace as well as check product quality through serial number. In addition, the laser engraving method will be
adopted to the latest launched module type medical grade MPM family serious number.
For the revision this time, electrical specifications and safety regulations will not be influenced.
Furthermore, MEAN WELL takes in all relevant additional cost, making no adjustment on the price. Shall
there be any questions, please refer to the updated specification on website or contact Evernet eletronics Co., Ltd. sales team(031-465-2206) representatives.