The Schneider Electric A9D97410 is an Acti9 iC60 RCBO — a combined residual-current circuit breaker with overcurrent protection, in a 4-pole (4P) configuration. Rated 10 A with 30 mA earth-leakage sensitivity and a B-curve magnetic trip (3–5 x In), it's built for final-circuit protection in distribution boards where both overload/short-circuit and earth-fault protection are needed in one DIN-rail module.
The 30 mA earth-leakage threshold provides personnel protection (per IEC 61009-2-1) and is the standard sensitivity for socket-outlet circuits in most domestic and commercial installations. The limitation class 1 (per EN/IEC 61009-2-1) means it lets through a defined let-through energy; coordination with upstream devices should follow the manufacturer's selectivity tables.
Clip-on mounting to DIN rail, 9 mm pole pitch, occupying 8 pitches (72 mm width). IP40 in a distribution enclosure, IP20 at the terminals — fine for a clean panel, not for washdown areas.