Varispeed 616G5, Device Type: AC Inverter / Variable Frequency Drive (VFD) for general purpose applications, Applicable Motor Power: 30 kW, Input Voltage (Nominal): 380 - 480 V AC, three-phase, Input Frequency (Nominal): 50/60 Hz, Output Voltage: 0 - 480 V AC, three-phase, Output Frequency: 0 - 400 Hz, Overload Capacity: 150% of rated current for 60 seconds (Heavy Duty mode), Control Methods: V/f Control (Volts/Hertz ratio), Open Loop Current Vector Control, Braking Chopper: Built-in, Speed Control Range: 40:1 (V/f mode), 100:1 (Open Loop Vector mode)