three phase isolation transformer 1) CE,CCC, ISO 9001- 2008 2) years of experience 3)high quality and best price three phase isolation transformer1) CE,CCC, ISO ... .special disign for your requirementTechnical indicators:input rated voltage:three-phase 380v,single-phase 220vOperating frequency: 50Hz-60Hz Efficiency: ≥ 95% 4 ... contact us, we will solve it in no time. three phase isolation transformer