Schneider Electric ATV66U41N4U Variable Frequency Drive

The Schneider Electric ATV66U41N4U AC Variable Frequency Drive is a 2.2 kW (3 HP) unit in the Altivar 66 family, designed to precisely regulate speed and torque of three-phase asynchronous motors in industrial equipment. It accepts 380–460 V AC three-phase input and provides a 400 V AC three-phase output, with a continuous output current of 5.8 A and an apparent power of 4.1 kVA, making it suitable for conveyors, pumps, fans, compressors, and HVAC systems. The drive supports PWM adjustable frequency control, a 0–300 Hz output range, 50/60 Hz supply, and a switching frequency of 0.5–4 kHz (8–16 kHz with current derating), plus Modbus RS485 communication and an IP20 protection rating. It is panel-mounted with a heat sink for industrial motor speed control environments and is commonly used as a replacement in Schneider Electric ATV340U22N4 and ATV630U22N4 installations, as well as Siemens SINAMICS G120C 2.2 kW units.