The Schneider ATV320U22N4B is a modular, single-phase, variable-speed drive that is designed to regulate the speed of three-phase asynchronous motors. The drive features a range of features such as an intuitive display, dynamic motor control, and open communications protocol. The ATV320U22N4B has a voltage range of 230Vac, a current capacity of 2.2A, and a power output of 0.5kW (1/2HP). The drive can be used in a variety of applications, including pumps and fans, conveyor systems, and material handling.