Power supplies with 72-85Â V output are for use with dc brushless motors. The output is protected to prevent failures due to over-voltage generated by motors during rotation and freewheeling. The reserve capacity allows these units to operate at 20% higher power levels at 45 ÂşC without exceeding standard temperature limits. Available in single- or three-phase with 3.1, 6.6 or 13.3 A output, short-circuit, overload and over-temperature protection are standard for heavy startup load.