At 415 V and 440 V the interrupting rating holds at 121 kA, dropping to 75.6 kA at 500 V and 7.5 kA at 690 V, so the voltage class of your system directly governs the available fault-clearing margin.
Thermal derating and physical fit
Above that it derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. The 138 mm width for a 3-pole frame is typical for this class, so it should drop into existing SENTRON or comparable MCCB mounting footprints without panel modifications.