Variable Frequency Drive, Max. HP 2 hp, Open Enclosure, 480V AC Input Voltage, Max. Output Amps 4.1 A, 480V AC Output Voltage, Input Phase AC 3, Output Phase AC 3, No Bypass, No Line Contactor, Starting Torque 175 Percent, Torque @ 1 Hz 175 Percent, Input Frequency 50/60 Hz, Output Frequency Range 0 to 500 Hz, Adjustable Acceleration Time 0 to 600 sec, Adjustable Deceleration Time 0 to 600 sec, Dynamic Braking Internal Switch/External Resistor, Height 7.24 in, Width 3.19 in, Depth 4.88 in