... , etc. Also be used for food, light industries,,and extract high pure water treatment from electron, medicine industrial ... smaill size ,high efficiency.2.With constant voltage and constant current(accuracy ≤1% ),output voltage stepless adjustable,ripple factor ≤1%, can ... customized ) Technical Parameters Input voltage220V AC 380V AC(Three-phase four-wire) 415V AC 50-60HZOutput DC current20A,50A,250A, ...