Its 187 kA breaking capacity at 240 V drops to 121 kA at 415 V and 440 V, then to 75.6 kA at 500 V and 52.5 kA at 690 V — so the interrupting duty you need at your system voltage is the one that governs the spec.
Thermal derating — the real continuous current at your ambient
Above that, it derates: 960 A at 55 °C, 940 A at 60 °C, 920 A at 65 °C, and 900 A at 70 °C. The maximum power loss of 332.5 W at rated current tells you the heat the breaker dumps into the enclosure; factor that into your thermal budget.
Auxiliary configuration and release
No ground-fault monitoring or communication function is fitted on this variant.
Dimensions: 320 mm height, 210 mm width, 120 mm depth. The 210 mm width is the critical panel cutout dimension — verify against your existing MCCB footprint.