The overload protection (Ir) is adjustable from 63 A to 160 A, and the short-time pickup (Isd) ranges from 0.6× to 10× In, with instantaneous pickup (Ii) from 1.5× to 10× In. That range of adjustability lets this breaker cover motor feeders, transformer primaries, or general distribution where coordination with downstream devices matters.
Integration notes for panel builders
The nut keeper kit and two HP auxiliary switches are included, so you have the switching status feedback wired before the breaker goes into the panel. Neutral conductor protection is optional and requires an external current transformer — plan for that if your distribution scheme calls for 4-pole sensing on a 3-pole breaker.