EI transformer have UL,CSA,CE,TUV,GS,BS,SAA,PSE,EK,FCC ,Brazil, EMCDec 21, 2012
... class: B, 130 degrees Celsius and E, 120 degrees CelsiusTemperature-rise: ?95 degrees CelsiusCertification: CE, RoHS, UL, SGS, CESI and ISO9001General ... voltage and no-load loss)Load test (load voltage and temperature rise)Inductive voltage testDC resistance test Safety testKey parts:Core: high ...