It's short-time delayed (selective class), so it coordinates with downstream devices in a distribution panel: on a ground fault, it holds off long enough for the downstream RCCB to clear first, keeping the main bus live. Rated at 10 kA short-circuit current withstand, it's sized for commercial and industrial sub-distribution where fault levels are moderate but selectivity matters.
The 63 A rating holds from 40 °C up to 55 °C without derating — at 60 °C it drops to 57.35 A, at 70 °C to 48.8 A (–). The short-time delayed characteristic gives a deliberate trip delay, so it's the main or feeder RCCB in a selective scheme; don't use it where instant trip is required for personnel protection. IP20 with conductors connected and distribution board installed. Silicon-free, which matters if it's in a coating or potting environment.
This is a current-production part in the SENTRON portfolio. No end-of-life notice on record.