Its breaking capacity varies by system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V — so the same breaker can serve different fault-current levels depending on the supply transformer and upstream coordination.
Temperature derating — the real-world current you can carry
Above that it steps down: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C.
The breaker occupies a 76.2 mm wide footprint (three-pole) with a depth of 70 mm and height of 130 mm. Three auxiliary switches (HQ type) are built in, giving you status feedback for PLC inputs or remote indication without needing an add-on module. No communication function or phase-failure detection on this order code — it's a pure distribution breaker, not a metering device.