... head8) Automatic short current circuit of the idle meter position, self-lock meter-hanging seat9) (opitonal)Equipped with time testing apparatus ... current output is open circuit (overload) 11) Fully automatic meter testing controlled by computer, intelligent data processing and network data ... , 0.5A, 1.0A, 2.5A, 5A, 10A, 20A, 50A, 100A5) Output voltage: 220V6) Voltage output power: 300VA, current power ...