It carries a 187 kA breaking capacity at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — so it handles high-fault-current service entrances and main feeders without cascading upstream. The 400 A rating holds at ambient temperatures up to 50 °C without derating; above that it steps down to 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C.
No ground-fault monitoring module is fitted from the factory, so if you need GF protection that has to be added externally. The breaker does not include a communication module or voltage-trip indicator, and there is no trip-indicator flag on the front. For remote status you rely on the auxiliary switches wired back to a PLC input.