AC Inverter for 15kW (20HP) 400V 3 Ph motor to 32A at high overload or 18.5kW (25HP) to 36A when Fan/Pump rated. Operates in VxF or Sensorless Vector as standard and full Closed-loop Flux Vector or Direct Torque Control (DTC) when an optional Encoder Feedback card is fitted. Converts fixed frequency Three Phase 400V input to variable frequency 400V to control the speed of a standard AC induction motor, permanent magnet synchronous motor, servo motor or synchronous reluctance motor.