Its interrupting capacity reaches 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 7.5 kA at 690 V — the voltage-dependent curve governs where this breaker can serve as the main or branch protective device.
Thermal derating and continuous duty
Above that, it steps down: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C. Plan the load accordingly.
Interrupting capacity by voltage
The breaker's short-circuit rating varies sharply with system voltage. At 240 V it handles 187 kA; at 415 V and 440 V it's 121 kA; at 500 V it drops to 75.6 kA; at 690 V it's 7.5 kA. For a 400 V distribution board with a high available fault current (over 100 kA), this breaker still holds — but at 690 V it's only suited for low-fault branches. Verify the point-of-installation SCCR against the voltage-specific value.
Built-in auxiliary and shunt trip
That means remote tripping and status feedback are covered without adding external accessories.
The 3-pole frame fits standard SENTRON mounting patterns. The breaker includes a trip indicator and voltage trigger for downstream alarm annunciation.