Breaking capacity is specified at four voltage levels: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. That spread tells you the part is rated for high-fault commercial and industrial panels where available fault current varies by system voltage — the 415 V figure is the one most often checked for European 400 V distribution.
Above that it derates: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. The IP40 front protection means it's splash-safe on the operator face but not rated for washdown; keep it inside the enclosure, not on the gland plate. The 76.2 mm width is a standard 3-pole MCCB footprint — it fits the same DIN-rail or mounting-plate cutout as other SENTRON 3VA frame sizes, so a panel laid out for a 3VA1010 or 3VA1020 accepts this unit without drilling new holes.