Continuous thermal current (Ith): 70 Amps (70A). Maximum operating voltage: 660 Volts (660V~). Horsepower and Kilowatt rating (depending on voltage used) At 220 - 240 Volts: Handles 18.5 kW / equivalent to 25 HP. At 380 - 440 Volts: Handles 30 kW / equivalent to 40 HP. At 500 - 660 Volts: Handles 30 kW / equivalent to 40 HP.