The interrupting ratings climb to 121 kA at 240 V and 75.6 kA at 415 V, so it handles high-fault-current scenarios common in industrial mains without needing a current-limiting fuse upstream.
Above that it steps down: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. That keeps the part simple and reliable for standard feeder protection, but it means you can't dial in a different trip curve later. No auxiliary contacts are built in, so if you need remote status feedback, you'll add the separate auxiliary trip accessory (order code 3VA9608-0BB11).
This MCCB is a panel-mount device — no DIN-rail clip, so it bolts into a cutout or mounts on a backplate. The footprint is 76.2 mm wide by 130 mm tall by 70 mm deep, which is the standard 3-pole SENTRON 3VA frame size. Plan for that depth behind the door, especially if you're fitting a rotary handle or a door interlock.