The 3AUD0000000004 is an ABB HVAC packaged drive that integrates an e-clipse bypass and a circuit breaker disconnect in a single NEMA Type3R enclosure — a ready-to-mount solution for outdoor or washdown-area HVAC installations where you need both drive and bypass in one footprint. UL-listed for light-overload use at 150 Hp and 180 A, this unit handles the fan and pump loads typical of commercial HVAC, sized for 440 to 480 V three-phase supply at 50/60 Hz.
The 150 Hp light-overload rating (180 A output) is the continuous-duty figure for fan and pump curves. The NEMA Type3R enclosure is rainproof and sleet-resistant, suitable for roof-top or exterior wall mounting. Input voltage range of 440 to 480 V three-phase covers the common North American 480 V wye distribution; the 50/60 Hz rating means it is equally at home on 50 Hz imports or 60 Hz domestic supplies without a frequency jumper change.