The Siemens SENTRON 3VA2463-6HL32-0AJ0 is a 3-pole molded case circuit breaker rated for 630 A continuous current at 40 °C, with a maximum interrupting capacity of 242 kA at 240 V AC. That interrupting figure drops to 187 kA at 415 V and 121 kA at 500 V, so the voltage class you're protecting drives the available fault current it can clear — at 690 V it's down to 9 kA, which still covers most low-voltage motor branch circuits. The 630 A frame carries a continuous-current rating that derates from 630 A at 40 °C down to 520 A at 70 °C, so if your panel ambient runs hot, size the upstream gear for the derated figure.
Footprint is 138 mm wide by 248 mm tall by 110 mm deep — that's a standard 3-pole MCCB envelope for a 630 A frame. The trip indicator is present, which helps a field tech confirm the breaker tripped on fault versus being manually opened.
What the interrupting ratings mean for coordination
At 415 V and 440 V it's 187 kA, at 500 V it's 121 kA, and at 690 V it's 9 kA. The 630 A continuous rating means this breaker is sized for main feeders or large motor branch circuits, not for small loads.