PSD-30 30W Single-Output DC-DC Converters MEAN WELL PSD-30 30W Single-Output DC-DC Converters are open-frame units with a wide 2:1 input range and 1500VAC I/O isolation. The series features a built-in EMI filter and low ripple noise. Protections include short circuit, overload, overvoltage, and reverse polarity. MEAN WELL PSD-30 30W Single-Output DC-DC Converters are cooled by free convection, making them cost-effective, high-reliability converters. The PSD-30 units come with a 2-year warranty.