HVAC drive with integrated harmonic mitigation
The ABB 3AUD0000000741 is an enclosed ultra-low harmonic drive for HVAC applications. It delivers 60 Hp at 460 V under UL light-overload duty, with a continuous output current of 77 A. The built-in non-fused disconnect simplifies panel wiring and meets code requirements for a local disconnecting means. Rated for 440 to 480 V three-phase input at 50/60 Hz, the drive sits in a frame R6 enclosure rated IP21 with a NEMA Type 1 rating — suitable for indoor installation in mechanical rooms or equipment closets where drips and falling dirt are the main concerns.
The 60 Hp / 77 A light-overload rating (UL) governs the continuous motor current the drive can supply without derating. For a typical HVAC fan or pump load, this covers a 60 Hp 460 V induction motor running at nameplate amps.
Integration notes
The frame R6 enclosure includes the non-fused disconnect as an integral component, eliminating the need for a separate disconnect switch in the line-up. IP21 and NEMA Type 1 allow mounting in a clean indoor environment without additional enclosures. The 440–480 V three-phase input range covers common North American and global 460 V / 480 V distribution systems.