The A9F04410 is a 10 A, 4-pole miniature circuit-breaker from the Schneider Electric Acti9 iC60N family. It is a thermal-magnetic MCB (trip unit technology: thermal-magnetic) with a C-curve (magnetic tripping limit 8 x In +/- 20 %), rated for both AC and DC networks at 50/60 Hz. The 36 kA Icu at 12-133 V AC (EN/IEC 60947-2) and 10 kA Icn at 400 V AC (EN/IEC 60898-1) tell you this breaker handles high short-circuit currents in a distribution panel — it's not a branch-circuit-only device. The dual-standard compliance (EN/IEC 60947-2 for industrial, EN/IEC 60898-1 for residential/commercial) means it qualifies for either type of installation, giving flexibility on the BOM.
Mounts on DIN rail (mounting support: DIN rail), occupies 8 x 9 mm pitches (72 mm width) — standard 4-pole MCB footprint. Depth is 78.5 mm, height 91 mm. The double terminal accepts 1-25 mm² rigid or 1-16 mm² flexible, top or bottom. Tightening torque 2 N.m. Strip length 14 mm for both top and bottom connections. IP20 (conforms to IEC 60529) — suitable for enclosed distribution boards only, not washdown areas.
Rated current 10 A (In) — this is the continuous load it can carry without tripping. C-curve (magnetic trip at 8 x In, +/- 20 %) means it holds through motor inrush up to about 80 A before the magnetic coil trips; good for lighting panels or mixed loads with moderate starting currents, not for heavy motor starts (that would want a D-curve). Breaking capacity: 36 kA Icu at 12-133 V AC, 20 kA at 220-240 V AC, 10 kA at 380-415 V AC, 6 kA at 440 V AC (all per EN/IEC 60947-2). The 10 kA Icn at 400 V AC (EN/IEC 60898-1) is the standard residential/commercial rating. The 36 kA figure at lower voltages means this breaker can be used on 110 V panels with high fault current — useful in industrial control panels fed from a 110 V control transformer with high SCCR. Overvoltage category IV — for main distribution boards. Suitability for isolation: yes, per both standards, so it can be used as a disconnecting means.