The ABB 3AXD50000706167 is a low-voltage AC packaged drive for 3-phase 525 to 600 V input. It is rated for 77 A continuous in light-overload duty, 75 Hp at 575 V under UL listing. Frame size R5, IP21, NEMA Type 1 enclosure.
The 77 A light-overload current is the number that governs motor sizing — that's the continuous rating for a variable-torque load like a pump or fan. If you're driving a constant-torque load, you'd need to check the heavy-overload curve, but for most HVAC or water applications this is the figure to match against your motor's full-load amps. The 525-600 V input range covers 480 V nominal systems (with a step-up transformer) and common 575 V Canadian or 600 V industrial feeds. At 50/60 Hz, it handles both standard line frequencies without derating.