At 415 V and 440 V it still holds 242 kA; at 500 V it's 187 kA; at 690 V it drops to 52.5 kA. These are the numbers your selectivity study needs — the breaker stays coordinated downstream across the full voltage band, not just at one test point.
Thermal derating and power dissipation
Rated 630 A at 40 °C ambient, but if your panel runs hotter — and most do — the derating curve is published: 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, 520 A at 70 °C.
The 3-pole footprint matches the SENTRON 3VA2 family; if you're swapping out an older frame, check the depth clearance — 110 mm is deeper than some compact MCCBs.