The A9F07240 is a Schneider Electric Acti9 iC60H miniature circuit breaker — 2 poles, 40 A rated current, C-curve magnetic trip (8 x In ±20 %). The C-curve means it holds through moderate inrush (motor starts, capacitor banks) and trips fast on hard shorts; the 40 A continuous rating governs the downstream conductor sizing. Breaking capacity hits 42 kA Icu at 12–133 V AC and 30 kA at 220–240 V AC, both per EN/IEC 60947-2 — that is utility-grade fault clearing, not just branch-panel level. At 400 V AC it still holds 15 kA Icu, so it coordinates with upstream switchgear in a typical 400 V distribution board. It is certified to both EN/IEC 60898-1 (household MCB standard) and EN/IEC 60947-2 (industrial circuit-breaker standard), which means it qualifies for either residential final circuits or industrial panel feeders — the dual rating is rare in a 2-module-wide package.
IP20 finger-safe protection on the front face. The toggle actuator gives a clear visual trip indication (red/green flag) and a contact-position indicator for safe isolation verification — both required by EN/IEC 60947-2 for an isolating device.
The Acti9 iC60H series is the high-breaking-capacity variant of the iC60 family (iC60N is the standard 6–10 kA version; iC60H hits 15–42 kA depending on voltage). If your panel SCCR study demands the higher fault rating, this is the one. No pin-compatible alternative exists within the same footprint — the iC60N shares the same housing and terminals but lower kA, so a substitution would require a coordination re-check.
The thermal-magnetic trip unit is sealed against corrosion.