MCCB with ETU350 — selectivity and headroom
If you need those options, you'd step up to the 3VA2 with the communication-capable trip unit.
The 250 A rating holds flat up to 50 °C ambient; at 55 °C it derates to 241 A, and at 70 °C it's 213 A. That matters when you're stuffing this into a crowded enclosure with other heat sources — the thermal curve is in the datasheet, but the takeaway is you don't lose headroom until you're past 50 °C. Dimensions are 181 mm high, 105 mm wide, 86 mm deep — standard 3-pole MCCB footprint for a 250 A frame. If you're panel-building, account for that in your thermal budget. The auxiliary contacts are pre-wired from the factory, so no field-assembly of the switch block.