Output Power(DC):6 A at 63 Vdc maximum continuous with a 240 Vac input. Max Output Current(DC) :15 A maximum, 1 minute Exciter Field DC Resistance:6.0 ohms minimum. Input(AC):180 to 300 Vac, single-phase, 50/60 Hertz. Burden:1000 VA maximum at 240 Vac power. Sensing Voltage(AC): 180 to 277 Vac at 220 Vac single-phase system; 312 to 480 at 400 Vac three phase system, 50/60 Hertz. Burden:5 VA. Voltage Adjust Range:180 to 277 Vac using the internal voltage adjust. just provides ±10%