Mean well 75w single output switching power supply rs 75 series mean well rs 75 12 the mean well rs 75 12 is a switch mode power supply from the rs 75 series this low cost and high reliabilityy power supply is supplied with voltage ratings of 12v dc output voltage it is compact and lightweight and has been designed to be mounted into equipmentracks etc the psu has a universal mains input voltage of 88 to 264v ac and 125 to 373v dc it has short circuit overload over voltage and over tem