... /1min Input---ground1500VAC/1min Input---ground500VAC/1min Safety standardsAccording with GB4943, UL60950-1,EN60950-1 standards.E M C ... standardsAccording with GB9254, EN55022 class A EN61347-2-13:2008 standardsEnvironmentalworking ... PCSProduct Type TableProduct modeloutput specificationripple, noiseefficiencyA-48-1212V4A100mV80% 48W AC-DC power adapter