Schneider Electric ATV320U40N4C Altivar Machine variable speed drive 4 kW 380-500 V 3-phase compact. The Schneider Electric ATV320U40N4C is a compact-format variable speed drive from the Altivar Machine ATV320 range, rated 4.0 kW for heavy duty (5.0 hp) with a power range of 4...5.5 kW on a 380...500 V, 3-phase, 50...60 Hz supply. The ATV320U40N4C draws 12.9 A line current at 380 V in heavy duty and provides 9.5 A continuous output current at 4 kHz, with an output frequency of 0.1...599 Hz and a switching frequency adjustable from 2 to 16 kHz. Motor control covers flux vector control without sensor, 2-point and 5-point voltage/frequency ratios, quadratic U/f energy saving, and vector control without sensor for synchronous motors. A Class C2 EMC filter is integrated, protection is IP20 to IEC 61800-5-1 (UL type 1 with conformity kit), and STO SIL 3 with SS1, SLS, SMS and GDL is built in. Applications include food and beverage processing lines, textile machinery, cement plant conveyors, HVAC fans and small water-network pumps.