The SENTRON 5SY7363-7CC is a 3-pole miniature circuit breaker rated 63 A at 40 °C with a C tripping characteristic, designed for AC distribution at 50/60 Hz up to 440 V (multi-phase).
Any mounting position is allowed, and the combined top/bottom terminals accept both feed-through and loop-through wiring without extra accessories. IP20 with connected conductors; install inside a rated enclosure for washdown areas.
The 63 A rating holds at 35 °C ambient. At 40 °C it derates to 59.54 A, at 45 °C to 57.71 A, at 50 °C to 55.82 A, and at 55 °C to 53.86 A. If your panel internal ambient runs above 35 °C, size the upstream protection or load accordingly — the nameplate 63 A is not the continuous rating at elevated temperature.