Supply Voltage: 220-500Vac 3phase 50/60HZ Max Supply Current : 99 Amps Auxiliary Voltage : 115 - 230 V ac - 1 phase 50-60 HZ Max Auxiliary Current : 3 A Max Armature Voltage : 600 V dc Max Armature current : 110A dc Max Field voltage : 500 Vdc Max Field Current : 10A dc