At 480 V it carries 75 A continuous, so it handles motor FLA up to that figure in a 480 V system.
The 90 mm width and 176 mm depth mean it occupies three standard 18 mm module slots on the rail — a common footprint for this class of SIRIUS breaker. That side clearance is tighter than some competing breakers; if you're packing multiple units side-by-side, keep that 30 mm minimum for arc venting and terminal access. Screw-type terminals on the main circuit accept solid or stranded: 2x (2.5 to 16 mm²) for the smaller wire, and 2x (2.5 to 50 mm²) or 1x (10 to 70 mm²) for the larger. That covers most motor feeder cables up to about 70 mm² — common for 75 A circuits.