The Siemens SENTRON 5SL6201-7RC is a 1 A, 2-pole miniature circuit breaker with a C tripping characteristic and a 7.5 kA breaking capacity rated per EN 60898 at 415 V AC. This is the part you spec for a 2-pole branch circuit on a DIN-rail panel where the load is a 1 A lighting or control transformer — the C-curve handles the inrush without nuisance tripping, and the 7.5 kA fault rating covers the typical residential or light-commercial service entrance.
The 90 mm height keeps it aligned with adjacent SENTRON breakers and accessories.
Degree of pollution 2 and overvoltage category III, with IP20 protection (with connected conductors). Sealable design allows lockout/tagout in panel maintenance. Accepts supplementary devices for remote signaling or shunt trip.