The 63 A frame is the one you spec for a 63 A feeder or a motor branch circuit where the full-load amps sit under that threshold.
Breaking capacity by voltage — where it fits
Interrupting ratings step down with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That 690 V figure is low — this is a 480 V class breaker, not a 690 V main. For a 480 V distribution panel with available fault current under 75 kA, it clears comfortably.
Built-in accessories and physical fit
No ground-fault monitoring module. The basic switch assembly is order code 3VA21635HN320AA0. No communication module onboard — this is a standalone thermal-magnetic trip unit.
Listed as current production. This is the active SENTRON 3VA generation.