The Siemens 5SV9316-1PK10 is a SENTRON RCBO — a combined RCD and MCB in one 18 mm wide unit (1 width unit). It's a 1P+N design: one protected pole switched, neutral switched but not protected.
Ratings that matter for the panel
At 40 °C it's 9.4 A, at 45 °C it's 9.1 A, at 50 °C it's 8.7 A, and at 55 °C it's 8.4 A. If the distribution board runs hot, factor that derating into the circuit design. The test button needs at least 195 V to operate correctly. The IP20 rating applies only when the distribution board is installed with conductors connected.