The Siemens 5SL6201-7BB is a SENTRON 5SL6 miniature circuit breaker rated 1 A with a C tripping characteristic, 2-pole (2P), breaking 6 kA per EN 60898 and IEC 60947-2 at 400 V AC. The 6 kA SCCR is the same under both standards, so it coordinates cleanly downstream of a higher-rated main breaker without extra paperwork.
This is a current-production part (lifecycle stage: current). No successor or phase-out notice on record.
Overvoltage category III, energy limiting class 3. The 5SL6 design is specified for residential buildings and infrastructure; no neutral switching on this 2-pole variant.