What this RCBO does in the panel
The Schneider Electric A9D51610 is an Acti9 iDPN Vigi residual-current circuit breaker with overcurrent protection (RCBO) — a single-module device combining a 10 A thermal-magnetic MCB and a 30 mA earth-leakage trip in one 36 mm wide housing.
Rated at 4500 A Icn at 230...240 V AC 50 Hz per EN/IEC 61009-2-1, this RCBO handles the fault levels typical of residential and light commercial final circuits. The limitation class 3 rating means it restricts let-through energy during a short-circuit, which helps with downstream coordination and reduces arc-flash stress on the wiring.
Clip-on mounting to DIN rail. IP20 on the body, IP40 inside a modular enclosure. The toggle provides local ON/OFF/fault-trip indication.
