Breaking capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V. That 242 kA figure at 240 V is the headline number for high-fault panels; the 690 V drop to 7.5 kA tells you this breaker is sized for low-voltage distribution, not 690 V motor circuits.
That simplifies panel design: if your load draws 250 A or less and the ambient stays under 70 °C, this breaker holds. The 242 kA interrupting rating at 240 V is the figure that governs SCCR compliance for a 240 V distribution panel; the 187 kA at 415 V covers most European 400 V grids.
Three auxiliary switches HQ are built in — no separate aux block to order.