The ABB 3AUD0000003151 is an HVAC enclosed ultra-low harmonic drive with an integrated circuit breaker, part of the ACH580 series. It's built for variable-torque loads like fans, pumps, and compressors in commercial or industrial HVAC systems where harmonic compliance matters without an external filter. Rated 300 Hp at 460 V, with a continuous output current of 361 A under light-overload UL conditions. That 361 A figure is the number to match against your motor's full-load amps for a standard HVAC duty cycle — not a heavy industrial constant-torque application. Input voltage range is 440 to 480 V, 3-phase, 50/60 Hz. The drive will accept either frequency, but the internal DC bus and control logic are tuned for that voltage band — verify your site supply is within it before committing the BOM line.
Frame size R11. That determines the mounting footprint, conduit entry locations, and the minimum enclosure clearance for airflow. If you're swapping into an existing panel, check the R11 cutout dimensions against your backplate — this is not a compact drive.
