It carries 80 A continuous at 40 °C and holds that rating up to 50 °C before derating begins (78 A at 55 °C, 74 A at 70 °C).
At 240 V it handles 121 kA, at 440 V it's 52.5 kA, and at 690 V it drops to 11.9 kA. For a 400 V industrial feeder, 75.6 kA gives headroom above typical utility fault levels (often 25–50 kA), so you can use it downstream of a larger main without worrying about cascading failure.
That width is a standard 3-inch footprint — it drops into a typical MCCB slot without needing a filler plate. Rated power loss is 19.2 W maximum, so in a sealed panel with multiple breakers you'll want to check the thermal rise against the enclosure's dissipation curve.