What this 630 A MCCB delivers
The 3VA2463-5JP32-0JC0: The interrupting ratings are what decide where this breaker fits in a fault study: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V. Thermal derating matters if the panel runs hot. At 40 °C ambient you get the full 630 A; at 50 °C it's 570 A; at 60 °C it's 510 A; at 70 °C it's 450 A. Factor that into the load schedule if the breaker sits near other heat sources in a closed enclosure.
Comes with communication function onboard, two auxiliary switches (HQ type), and a shunt trip (STL) for remote tripping. Maximum power dissipation is 162 W at rated load. That's the heat you need to vent in the enclosure calculation — not trivial in a sealed panel.