The ABB 3AUD0000004269 is a UL-rated HVAC packaged drive combining an ACH580 variable-frequency drive with an e-clipse bypass and a circuit breaker disconnect in a single NEMA Type3R enclosure. Rated for 50 Hp light-overload use at 52 A output on 500-600 V three-phase 50/60 Hz supply, it is built for outdoor or weather-protected installation on roof-top units, air handlers, or cooling towers where a single enclosure simplifies wiring and service.
What the UL ratings mean for fit
The 50 Hp / 52 A light-overload (UL) rating is the continuous-duty ceiling for fan and centrifugal pump loads — the standard HVAC profile. Light-overload means the drive can deliver 110% current for 60 seconds, enough for fan inertia start-up without oversizing. The 500-600 V input range covers 480 V and 575 V nominal systems common in North American commercial HVAC; the 52 A output matches a 50 Hp 460 V motor at full load amps. NEMA Type3R means rain-tight and sleet-resistant — suitable for outdoor wall or roof mounting, not for washdown or submersion.
Listed as Active in production.