The ACS 160 drive from ABB Automation Inc. (New Berlin, WI) is a self-contained, standard NEMA 4 microdrive which covers a 1/2- to 3-hp range in a input voltage range of 380 to 500 vac. The ACS 160 is available in three optional drive packages: fieldbus, dynamic braking resistor, and a control panel that can be mounted integral to the drive.