The ABB 3AUD0000000679 is an HVAC packaged ultra-low harmonic drive with an integrated circuit breaker, built for 3-phase 440–480 VAC supplies. It delivers 40 Hp at 52 A under light-overload (UL) duty — the rating that governs continuous fan and pump loads in commercial HVAC. The R6 frame houses the harmonic filter and breaker in a single IP21 / NEMA Type 1 enclosure, so it mounts indoors without a separate filter cabinet.
The 52 A light-overload current (UL) is the continuous rating for variable-torque loads — fans, centrifugal pumps, compressors. That 40 Hp at 460 V maps to a standard NEMA motor frame; if your BOM calls for 40 Hp at 480 V, this drive covers it without oversizing. The integrated circuit breaker saves a panel slot and simplifies coordination — no separate branch-circuit protection to size and wire. IP21 means the drive is drip-proof but not washdown-rated; keep it in a conditioned electrical room, not on the production floor.
Integration notes
The R6 frame is a floor-standing or wall-mount package; plan for bottom cable entry and overhead clearance for the integrated breaker handle. The drive accepts 50/60 Hz line frequency — no derating needed for 50 Hz installations. NEMA Type 1 means no additional enclosure for dry indoor locations; if the room sees condensation, add a space heater or relocate to a Type 12 cabinet.