The Siemens 5SU1356-1GV16 is a SENTRON RCBO (residual current circuit breaker with overcurrent protection) combining a 16 A rated current with a 30 mA residual-current trip in a single 2-module-wide (36 mm) package.
Full 16 A rating holds at 30 °C ambient; at 40 °C it derates to 15.2 A, at 50 °C to 14.4 A, and at 70 °C to 12.32 A. Mounting position is unrestricted, and the supply can enter from either top or bottom — no forced orientation in the panel. IP20 applies once the distribution board is installed and conductors are connected — the front face is touch-protected.
