The Siemens 3VA2463-5JP32-0KG0 is a SENTRON molded case circuit breaker rated 630 A at 40 °C ambient, with a maximum breaking capacity of 187 kA at 240 V AC. At 415 V and 440 V it still holds 121 kA, and at 690 V it drops to 9 kA, so the voltage-dependent curve is what governs your SCCR coordination study. Ambient operating range is -25 °C to 70 °C, with current derating starting at 40 °C — at 50 °C it's 570 A, at 60 °C it's 510 A, and at 70 °C it's 450 A.
The 110 mm depth leaves room for rear-connection busbars or cable lugs in a typical 600 mm deep enclosure.