The Schneider Electric A9F06640 is an Acti9 iC60H miniature circuit breaker (MCB) rated at 40 A with a B-curve trip characteristic, 1P+N poles, and a breaking capacity of 10 kA Icn at 230 V AC per EN/IEC 60898-1.
The B-curve (4 x In magnetic trip limit, +/- 20%) means this MCB trips instantaneously at 4 times its 40 A rated current, i.e., between 128 A and 192 A. The 1P+N configuration switches the phase and provides a switched neutral, but only the phase pole is protected; the neutral pole is not overcurrent-protected. The left-side neutral position is fixed, so confirm busbar and wiring order before terminating.
This MCB is dual-certified to EN/IEC 60898-1 (domestic/similar installation standard, Icn rating) and EN/IEC 60947-2 (industrial standard, Icu rating). It is suitability for isolation per both standards, meaning it can be used as a disconnecting means under load. Overvoltage category IV means it can be installed at the origin of the installation (utility meter side), not just downstream sub-distribution.
Mounts on DIN rail and occupies 4 module pitches, each 9 mm, for a total width of 36 mm. Depth is 78.5 mm, height 91 mm. Terminals accept double conductors: 1...35 mm² rigid or 1...25 mm² flexible, with a tightening torque of 3.5 N.m and a wire strip length of 14 mm. IP20 finger-safe terminals suit enclosed panel installation but not washdown environments. The toggle control and trip indicator provide local status without opening the panel door.