ABB ACQ80-01-037KW-4 37 kW solar pump drive. ABB ACQ80-01-037KW-4 is an ACQ80 solar pump drive rated 37 kW, 73 A, 380-480 V AC / solar DC, frame R4, IP21. Designed for solar irrigation, borehole pumps, booster stations and off-grid water systems with efficient motor control and application-specific protection.