Above that, it steps down: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. That thermal curve is what you check against your actual load current at the panel's internal temperature, not the room ambient. At 415 V and 440 V it holds 121 kA, at 500 V it drops to 79 kA, and at 690 V it's 3.4 kA.
That 105 mm width is three pole spaces wide on a standard DIN-rail or panel-mount grid — verify your enclosure's backplate layout if you're swapping from a different MCCB family, as the 3VA mounting hole pattern and bus-bar connection centers are specific to the SENTRON range.