... your nice partner S- 75W Switching power supply Specification AC input voltage range:88~132VAC/176~264VAC selected by switch 47 ... ,/1cycle,Period for 60min,Each axesWithstand voltage:Input and output internal:3KvAC,Input and enclosure:1.5KvAC,Output and enclosure ... :0.5KvACIsolation resistance:Input and output internal,input and enclosure,output and enclosure:500VDC/100MΩ ...