Schneider Electric ATV310HU22N4E Easy Altivar 310 variable speed drive 2.2 kW 3 hp 380-460 V 3-phase. The Schneider Electric ATV310HU22N4E is a variable speed drive from the Easy Altivar 310 range, rated 2.2 kW / 3 hp for heavy duty on a three-phase 380...460 V supply. Designed for simple machines, the ATV310HU22N4E is a with-heat-sink compact unit measuring 143 x 105 x 151 mm and weighing 1.1 kg, so it fits easily into small panels. It provides 5.5 A continuous output current in heavy duty, 8.3 A transient current for 60 s, an output frequency of 0.5...400 Hz and a switching frequency adjustable from 2 to 12 kHz. Motor control offers voltage/frequency ratio, quadratic U/f energy saving and sensorless vector control (SVC), with built-in Modbus RTU on a front RJ45 port. Protection is IP20 without the blanking plate on the upper part, IP4X on top, and the drive is supplied without EMC filter. It suits pumps, fans, conveyors and small machines in water networks, food and beverage plants, textiles and building HVAC.