The Siemens SENTRON 5SJ6532-6 is a 1P+N miniature circuit breaker with a B tripping characteristic, rated 32 A at 240 V AC. It breaks fault currents up to 6 kA per EN 60898 and IEC 60947-2 — enough for most residential and light commercial distribution boards where the prospective short-circuit current stays under that threshold.
Installation depth is 70 mm. Mounting position is any, which helps when you're squeezing this into a crowded enclosure. Terminals accept solid or stranded copper from 0.75 mm² up to 25 mm² — that's a wide range, so it handles both the feed-in and the branch circuit without needing a reducer.