The Siemens 5SU1356-6GV16 is a SENTRON RCBO (residual current operated circuit breaker with integral overcurrent protection) in a 2-pole 1P+N configuration. It combines a 16 A rated current with a Type A residual current detection and a B-curve tripping characteristic, so it protects both against overload and short-circuit as well as against sinusoidal AC and pulsating DC residual currents — common on circuits feeding single-phase rectifiers or electronics.
The 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.
Installation and compliance notes
Halogen-free and silicon-free construction supports use in clean-room or sensitive electronics environments where outgassing must be minimized. Designated as instantaneous (no intentional time delay on the residual current element), so it trips within the standard Type A response window.