... 4,ISO9001 and CE 5,can be customized and OEM power transformer; voltage transformer CE,ISO9001 approval High efficience. Low temperature rise Good ... Input240V AC 50HZ4.2Primary Exciting Current25mA max (at 240V ac 50Hz Input)4.3Sec.Output (Pri.Rating Input) Measure PointLoad ... 4.6Temperature rise (T)Ambient temperature 25°C,Input 240VAC 50Hz rated load, Pri Sec windings temperature rise to 60 ° ...