What this 250 A MCCB actually does in a panel
At 415 V and 440 V it still holds 187 kA, and at 690 V it breaks 40 kA, so this breaker covers low-voltage distribution across most industrial voltage levels. A shunt trip release (STL) is integrated, so you can remotely trip the breaker via a control signal, which is standard for emergency-stop or fire-safety interlocks.
Above that it derates: 240 A at 55 °C, 235 A at 60 °C, 230 A at 65 °C, and 225 A at 70 °C. That depth is the body only — add clearance for the handle throw and wiring gutters.