Schneider Electric ATV320U75N4C Altivar Machine variable speed drive 7.5 kW 380-500 V 3-phase compact. The Schneider Electric ATV320U75N4C is a compact variable speed drive in the Altivar Machine ATV320 range, rated 7.5 kW for heavy duty (10.0 hp) with a stated power range of 7.5...11 kW on a 380...500 V, 3-phase, 50...60 Hz supply. In heavy duty the ATV320U75N4C draws 25.5 A line current at 380 V and delivers 17.0 A continuous output current at 4 kHz, with 0.1...599 Hz output frequency and a switching frequency adjustable between 2 and 16 kHz. Control laws include sensorless flux vector control, 2-point and 5-point V/f, quadratic U/f energy saving and vector control without sensor for synchronous motors. It carries an integrated Class C2 EMC filter, IP20 protection to IEC 61800-5-1, UL type 1 with conformity kit, and integrated STO SIL 3 safety. Typical duties are conveyors and crushers in cement plants, process pumps in water and wastewater stations, textile lines, and large air-handling fans in HVAC systems.