The A9F03332 is a 3-pole (3P) Acti9 iC60 miniature circuit-breaker rated 32 A with a B-curve trip characteristic — magnetic tripping occurs at 4 x In (±20%), so it clears short-circuits fast on resistive or general-purpose loads where inrush isn't high. The 36 kA Icu at 12–133 V AC is the maximum interrupting capacity under EN/IEC 60947-2; at 220–240 V AC it still holds 20 kA Icu, and at 380–415 V AC it delivers 10 kA Icu. That's enough for most distribution panels fed by a transformer of moderate kVA — the SCCR headroom is there for the common 400 V three-phase bus. The 10 kA Icn at 400 V under EN/IEC 60898-1 is the standard domestic/commercial rating, so this breaker fits both industrial (60947-2) and installation (60898-1) applications. Mounts on a DIN rail (6 x 9 mm pitches = 54 mm wide, 91 mm high, 78.5 mm deep), so it occupies three standard module spaces in the enclosure. The thermal-magnetic trip unit is non-interchangeable — you buy the rating, that's what protects the circuit.
Certified to both EN/IEC 60947-2 (industrial) and EN/IEC 60898-1 (domestic/commercial) — dual-standard approval means it's accepted in panel builds across Europe and many other markets that harmonize with IEC. Suitable for isolation per both standards, with a contact position indicator and trip indicator for visual status. IP20 finger-safe terminals. The double-terminal design accepts 1–35 mm² rigid or 1–25 mm² flexible on top or bottom — enough for the 32 A feed and downstream load wiring. Earth-leakage protection is handled by a separate block (Vigi iC60), not integrated.