The ABB 3AUD0000003519 is an ACQ580 irrigation drive package — a purpose-built LV AC variable-frequency drive for pump loads in agricultural water management. It runs on 440–480 V three-phase at 50/60 Hz and is rated for 180 A light-overload use (150 Hp) or 156 A heavy-duty (125 Hp) under UL. The NEMA Type 1 enclosure (IP21) suits indoor panel mounting; frame size R7 means it occupies the larger footprint in the ACQ580 family, sized for the 180 A output stage.
The light-overload rating (180 A, 150 Hp) is the figure that governs variable-torque pump duty — the drive can deliver that current continuously for centrifugal loads without derating. The heavy-duty rating (156 A, 125 Hp) applies for constant-torque applications like positive-displacement pumps or conveyors. The 50/60 Hz frequency acceptance means it works on either 50 Hz or 60 Hz supply without hardware change. NEMA Type 1 provides basic drip protection indoors; IP21 adds finger-probe ingress protection for the enclosure.