Its interrupting capacity is 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 — so the same frame handles high-fault service entrances (typical 240 V North American) and medium-voltage industrial feeders (690 V European) without a frame-size jump. The 630 A rating is at 40 °C; above that, the thermal derating curve drops to 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. Maximum power loss is 162 W — account for that heat in the enclosure ventilation calculation.
Dimensions are 110 mm depth, 138 mm width, 248 mm height (4.33 x 5.43 x 9.76 in). Verify the cutout against your existing backpan — the 138 mm width is the same as other 630 A SENTRON frames, so a panel built for a 3VA2 630 A breaker accepts this one without rewiring.
Coordination and selectivity notes
The minimum short-circuit setting is 945 A, maximum 5 670 A — adjust the magnetic trip to avoid nuisance tripping on motor inrush while still clearing a bolted fault. No undervoltage release or voltage trip is fitted on this variant, so it stays closed through a sag unless you add an external shunt trip.