Schneider Electric ATV312HU55N4 Variable Speed Drive

The Schneider Electric ATV312HU55N4 variable speed drive from the Altivar 312 series is designed to control the speed and torque of three-phase asynchronous motors in industrial automation systems, converting fixed input power to an adjustable output frequency for energy-efficient motor operation. This 5.5 kW (7.5 HP) AC drive accepts 380–500 V AC three-phase input at 50/60 Hz and provides a 0–500 Hz output with up to approximately 14.3 A and 15 kVA apparent power, making it suitable for conveyors, pumps, fans, and packaging equipment. It supports sensorless vector control and V/F control, includes an integrated EMC filter, and is IP20-rated for panel or cabinet mounting, with Modbus and CANopen communications and compatibility with asynchronous/induction motors. Applications span industrial machinery, material handling equipment, packaging machinery, textile machines, and automated production lines where adjustable motor speed and reliable control are required. Common replacement is ATV320U55N4B.