The ABB 3AXD50001075996 is an ACQ580-31 wall-mounted ultra-low harmonic drive in frame R6, sized for a 15 Hp motor on 208-240 V three-phase supply. UL light-overload rating is 46.2 A — that's the number to match against your motor FLA if you're running the pump or fan curve. Input voltage range is 208-240 V, 50/60 Hz, so it covers both 60 Hz North American and 50 Hz export panels without a transformer tap change.
Frame R6 is the mechanical envelope — mounting hole pattern, conduit entry locations, and heat sink sizing. IP21 and NEMA Type 1 enclosure means it's indoor-only, no washdown, but fine for a clean MCC room or water treatment building. The 46.2 A UL light-overload figure is the continuous output current at 240 V; if your motor draws less, the drive still delivers full rated torque, but the thermal capacity is set for that ceiling. No derating needed at 50 Hz — the drive handles both line frequencies natively.