The Siemens SENTRON 3VA2463-8JP32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 630 A continuous at 40 °C with an ETU550 electronic trip unit.
Interrupting ratings climb to 440 kA at 240 V, 330 kA at 415 V, and 220 kA at 500 V — numbers that give you serious fault-current headroom for a 480 V or 400 V industrial service. That selectivity matters when a fault on a branch shouldn't black out the whole line.
If the panel runs hotter — and a packed enclosure with a 630 A breaker usually does — you need to derate: 600 A at 45 °C, 570 A at 50 °C, all the way down to 450 A at 70 °C.