The Schneider Electric A9F07640 is an Acti9 iC60H miniature circuit breaker rated 40 A with a C-curve (magnetic trip at 8 x In ±20 %). Breaking capacity is 15 kA Icu at 220…240 V AC per EN/IEC 60947-2, and 10 000 A Icn at 230 V AC per EN/IEC 60898-1; that 15 kA Icu figure is the one that governs fault-clearing ability on a 230 V distribution board. Dual-rated to both the 60947-2 (industrial) and 60898-1 (domestic/similar) standards, so it qualifies for commercial panel builds and residential final circuits alike. The thermal-magnetic trip unit combines a bimetal element for overload protection and a solenoid for short-circuit response. With 1 protected pole plus switched neutral (1P+N), it interrupts the live conductor only; the neutral pole switches but does not protect.
Snaps onto a DIN rail — standard 36 mm width per pole, 4 module pitches (9 mm each). The double terminal accepts up to 35 mm² rigid or 25 mm² flexible on top or bottom, with a stripping length of 14 mm and a tightening torque of 3.5 N·m. That wire range covers most distribution cable sizes up to 6 AWG equivalent, so it fits both panel feed and load-side wiring without adapters. The toggle actuator gives a clear visual trip indication via the contact position indicator, and the local signalling flag confirms the tripped state even if the toggle is manually reset.