The Siemens SENTRON 5SV6316-7KK25 is a compact AFDD-RCBO — an arc-fault detection device combined with a residual current circuit breaker in a single 18 mm wide unit. It protects a 1P+N circuit at 230 V AC, 50 Hz, with a 25 A rated current and 30 mA residual sensitivity, Type A.
The 30 mA residual current (Type A) catches sinusoidal AC and pulsed DC fault currents — covers most modern electronics and variable-speed drives. The AFDD function detects series arcs (2 A to 25 A) and parallel arcs (50 A to 500 A), so it protects against loose connections and damaged cable insulation that a standard RCBO would miss.
Integration notes
Accepts conductors up to the terminal rating; spring-cage or screw terminals depending on variant — verify termination style on the nameplate. Halogen-free and silicon-free construction suits clean-room or low-outgassing environments. The test button requires a minimum 195 V AC to operate correctly.
