ABB ACS580-01-078A-4+J429Product Description Drive, AC, 50HP, 480V, 65. 0A, CT, N1 The ABB ACS580 01 078A 4+J429 is a powerful variable speed drive specifically designed for a wide range of industrial applications. It features advanced technology for superior performance, delivering outstanding speed and torque control accuracy. With its easy to use intuitive interface, you get real time monitoring and diagnostic functions with minimum maintenance requirements.