What the interrupting ratings mean for panel coordination
Its interrupting capacity climbs to 121 kA at 240 V, then steps down to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — these are the fault currents it can safely clear at each voltage level without welding contacts or rupturing the arc chamber. For a 415 V distribution board, that 75.6 kA SCCR gives headroom above typical utility fault levels, so it coordinates downstream without forcing an upstream breaker to take the full hit.
At 55 °C it steps to 24 A, then drops gradually to 22.5 A at 70 °C.
Integrated shunt trip and auxiliary release
The integrated auxiliary trip is specified as order code 3VA9688-0BL30, so if you're replacing an existing unit, verify that the same release module is fitted or order the matching spare.