Schneider Electric ATV31CU15N4ZH28 Altivar 31 1.5kW customisable equipped variable speed drive incorporates the sensor less flux vector drive in an IP55 enclosure with integrated local controls, including:- vario motor Isolator, speed reference potentiometer and a run-stop selector switch. The drive is of a compact design with digital display and application functions suitable for all types of drive applications.