Above that the thermal curve pulls it down — 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, 74 A at 70 °C — so if your panel runs hot, that 80 A nameplate shrinks. Breaking capacity holds at 76 kA at 240 V, drops to 53 kA at 415 V, 32 kA at 440 V, and 8 kA at 500 V.
Panel footprint is 101.6 mm wide by 130 mm tall by 70 mm deep — a standard 4-pole MCCB slot on a DIN rail or mounting plate. The adjustable instantaneous pickup (li) goes up to 800 A, so you can tune it to the inrush of a motor or transformer bank without nuisance tripping.