The ABB 3AUD0000000715 is an HVAC enclosed ultra-low harmonic drive with an integrated circuit breaker, UL-listed for light-overload use at 15 Hp and 23 A on a 460 V supply. It operates on 440-480 V three-phase input at 50/60 Hz, in a Frame R3 enclosure rated IP21.
The 23 A light-overload rating (UL) is the continuous output current the drive can deliver to a variable-torque load like a fan or centrifugal pump without exceeding its thermal limits. For a 15 Hp motor at 460 V, that current matches the full-load amps of a standard NEMA Design B induction motor, so the drive is sized for that motor directly — no oversizing needed. It is suited for indoor installation in a clean, dry electrical room or mechanical penthouse — not for washdown areas or outdoor exposure without additional weather protection. Frame R3 defines the mechanical footprint and mounting hole pattern. It determines which optional kits (braking resistors, I/O expansion, fieldbus adapters) are compatible, and it sets the minimum clearances for airflow and cable bending radius inside the panel.
Where This Class of Drive Is Used
HVAC dedicated drives like this one are specified for variable-torque loads in heating, ventilation, and air-conditioning systems — fans, pumps, and compressors where the load torque rises with the square of speed. The ultra-low harmonic design meets IEEE 519 harmonic distortion limits without external filters, which simplifies compliance in buildings with sensitive equipment on the same distribution transformer.