The Siemens SENTRON 5SV4316-0MB is a 2-pole residual current circuit breaker (RCCB), Type AC, rated 63 A with 30 mA trip sensitivity on a 230 V AC supply.
Type AC means it detects sinusoidal AC residual currents only — not pulsed DC or smooth DC, so it's suited for circuits without electronic loads (inverters, UPS, EV chargers) that generate non-sinusoidal leakage. The 63 A rating covers the main incoming supply for a distribution board or a high-load submain. The 10 kA SCCR (per IEC 61008-1) matches typical domestic and light commercial fault levels; if your prospective short-circuit current exceeds that, you need an upstream backup fuse or MCB rated to 63 A max.
Deployment context
The IP20 rating is standard for enclosed distribution boards — the RCCB is not intended for wet or washdown environments. The silicon-free construction matters for automotive paint-shop and coating-line panels where silicone outgassing causes adhesion defects.