What it is and where it sits
The ACS580-01-044A-4: It is rated for 480 V AC supply with a 3-phase output, sized at 30 Hp under normal duty and 25 Hp under heavy duty — the kind of split you want on the nameplate when the motor sits between a fan/pump curve and a loaded conveyor. The frame is R3: roughly 19.3" tall by 7.99" wide by 9.2" deep, which lands it on a standard industrial wall surface rather than inside a cabinet cutout.
Reading the dual rating
Normal duty is the headline figure — 30 Hp at 44 A — and heavy duty drops the unit to 25 Hp at 34 A, so the motor's load profile, not just its nameplate, decides which rating governs. On overload headroom: heavy duty at 34 A is the one that protects the IGBTs on a stalled rotor or high-inertia start, which is the failure mode that actually kills these drives when the application is undersized.
Sourcing posture
The ABB ACS580-01-044A-4 is a current-series general purpose drive — spec it into the BOM at 480 V 3-phase, 30 Hp normal duty, 25 Hp heavy duty — and quote it to order against an RFQ against the R3 frame footprint.