Siemens SENTRON 3VA2225-7HN32-0DA0 — 250 A MCCB with Undervoltage Release
Its interrupting capacity hits 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 4.5 kA at 690 V — the 690 V figure drops sharply, so verify the fault current at your system voltage before specifying. No auxiliary switch or ground-fault monitoring is fitted on this variant.
Above that, it derates: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. That's modest for a 250 A frame, but in a dense panel with multiple breakers side-by-side, the cumulative heat can raise internal ambient — check the derating curve if you're stacking several in a row.
That 86 mm depth (3.39 in) is the critical number for shallow backpanels or enclosures with limited clearance behind the mounting plate — measure your gland plate depth before committing. The 105 mm width (4.13 in) is standard for a 3-pole MCCB in this class; it occupies three 35 mm DIN-rail module positions if mounted on a rail, though the SENTRON 3VA series typically bolts directly to a mounting plate.