What this RCBO is and where it lands in the panel
The Siemens SENTRON 5SV9316-6PK20 is a 1P+N RCD-operated circuit breaker — an RCBO that combines overcurrent protection and residual-current detection in a single 18 mm wide module. It is designed for final circuits in distribution boards where earth-leakage and short-circuit protection must be coordinated in one device, saving a DIN-rail position over separate MCB + RCCD. The IP20 rating assumes the distribution board is installed and conductors are connected — this is an enclosed-panel device, not a standalone enclosure.
At 40 °C it carries 19 A; at 45 °C, 18.4 A; at 50 °C, 18 A; at 55 °C, 17.4 A. Size the upstream circuit accordingly.
Listed as current-production.