The ABB 3AUD0000003509 is an ACQ580-series irrigation drive package built for 3-phase pump loads on 208-240 VAC mains. It carries dual UL output ratings: 40 Hp / 114 A for heavy-duty use and 50 Hp / 143 A for light-overload duty at 460 V — the light-overload figure governs continuous pump operation, while the heavy-duty rating applies when the drive must handle sustained overload profiles typical of well pumps with high starting torque. Frame size R6 and NEMA Type 1 enclosure (IP21) mean it is intended for indoor panel or protected outdoor installation — not direct washdown exposure.
The 114 A heavy-duty rating (40 Hp) applies when the drive must sustain 150% overload for 60 seconds, typical for starting high-inertia loads or for applications with repeated surge cycles. Use the heavy-duty number for sizing branch-circuit protection and conductors. Input voltage range is 208-240 V three-phase. On a 208 V supply the output current capability derates proportionally; verify the motor's FLA against the drive's output current at the actual line voltage before committing the BOM line.