AEC Switchgear provided AC drive ATV340D22N4E This Altivar 340 variable speed drive can feed 3-phase synchronous and asynchronous motors in open and closed loop control. Altivar Machine ATV340 drives are sized heavy duty as standard. It works at a rated power up to 22kW / 30hp and a rated voltage from 380V to 480V AC. ATV340 has been designed to meet the needs of applications for harsh environments, such as vibration, shock and non-conductive dust and where high temperature resistance up to 60 °C is needed. This product integrates Modbus serial line communication protocols as standard(ATV340D22N4E)