The A9F06225 is a 25 A, 2-pole miniature circuit breaker from the Acti9 iC60H series, curve B. The B-curve trips magnetically at 4 x In (±20%), so it clears short-circuit faults quickly but tolerates modest inrush — suited for resistive or general-purpose distribution loads, not motor starting. The 42 kA Icu at 12-133 V AC (EN/IEC 60947-2) is the maximum interrupting capacity the breaker can safely clear once; at 220-240 V AC it still holds 30 kA, and at 380-415 V AC it delivers 15 kA. The thermal-magnetic trip unit combines a bimetal for overload protection and a solenoid for short-circuit response. Mounts on a standard DIN rail (35 mm per EN 60715) and occupies 4 x 9 mm pitches — 36 mm wide. IP20 finger-safe terminals are standard for enclosed panel use.
Suitability for isolation is confirmed under both standards — the contact position indicator shows the true state of the contacts.