AC Drives with Auto Torque Boost operates on the motor power of 0.5 to 1 HP. The AC Drives has built-in SOFT-PWM which makes it operate on ultra low noise. The AC Drives is also equipped with 5 digits 7 Segment removable keypad with standard RJ45 interface. The AC Drives with Auto Torque Boost cools by heat sink and thus eliminating fan noise.