The Siemens SENTRON 5SV3416-8 is a selective residual current circuit breaker (RCCB) — 2-pole, rated 63 A at 50/60 Hz, with a 100 mA Type A trip threshold. Selective (time-delayed) design means it coordinates with downstream RCDs: on a ground fault, the downstream device clears first, keeping this unit and upstream circuits live. Rated short-circuit withstand is 10 kA per IEC 61008-1, with an I²t let-through of 110,000 A²·s.
Selective (S-type) time delay prevents nuisance tripping when a downstream RCD clears a fault first, so it belongs at the distribution board feeding sub-panels or final circuits. The 63 A rating holds at ambient up to 55 °C without derating; at 65 °C it derates to 56.96 A, and at 70 °C to 48.2 A.
Panel integration
The IP20 rating applies only after the distribution board is installed and conductors are connected — not a standalone outdoor rating. Silicon-free construction is confirmed, which matters for potting or conformal-coating processes in sensitive environments.