The heavy-duty curve (500 kW, 741 A) covers high-starting-torque applications like crushers or extruders where the drive must deliver peak current without tripping. The light-overload rating (630 kW, 950 A) splits the difference for moderate overload cycles.
The mounting type is listed as module for cabinet building, so plan for a dedicated compartment with forced ventilation; the drive itself is not self-cooled in the sense of a standalone enclosure.
