The A9F08102 is a 2 A, 1-pole miniature circuit breaker from the Schneider Electric Acti9 iC60H series.
The headline number here is 70 kA Icu at 220...240 V AC — that's the ultimate breaking capacity under IEC 60947-2, meaning it can safely interrupt a fault up to 70 kA once and still be functional. For the EN/IEC 60898-1 service rating (Icn) it's 10 kA at 230 V AC, which is the standard for most final-distribution boards. On DC circuits, you get 20 kA Icu at 12...60 V DC and 15 kA at 60...72 V DC.
Snaps onto a DIN rail (mounting support: DIN rail). Pollution degree 3 (conforming to EN/IEC 60947-2) means it's rated for conductive pollution typical in industrial control panels.
