What it is and what the ratings mean
The A9D02810 is a Schneider Electric Acti9 iC60H RCBO — a combined residual current device and miniature circuit breaker in a single 1P+Ns module. The C curve means it trips magnetically at 5 to 10 times rated current, so it handles motor inrush and lighting loads without nuisance tripping on start-up. The 10 A thermal rating and 30 mA residual sensitivity cover the most common socket-outlet and lighting final circuits in commercial and light industrial panels. The 10000 A breaking capacity at 240 V tells you it can safely interrupt a bolted fault up to that level without upstream fuses needing to clear first — that's the figure that governs panel SCCR coordination.
Deployment context
Snaps onto standard DIN rail inside a distribution board or sub-panel. The 1P+Ns format (single-pole switched, neutral solid) is the typical UK and Middle East final-circuit layout — it protects the line conductor only while the neutral busbar passes through uninterrupted. Rated 240 V, so it's sized for single-phase final subcircuits in a 230/400 V three-phase system.