The Schneider Electric A9F06616 is a miniature circuit breaker from the Acti9 iC60H series, rated 16 A, 1P+N, with a B tripping curve. It is a thermal-magnetic MCB designed for distribution in final subcircuits. The B curve means magnetic tripping occurs between 3.2 and 4.8 times rated current (4 x In +/- 20 %) — suited for resistive or general-purpose loads where inrush is low. It carries a 42 kA breaking capacity at 12-60 V AC, which is the Icu per IEC 60947-2; the Icn per IEC 60898-1 is 10 kA at 230 V AC. That dual rating tells you this breaker is certified to both standards — it can be specified in industrial panels (60947-2) or residential/commercial distribution boards (60898-1). The 1P+N configuration switches the phase and provides a switched neutral on the left side.
Mounts on DIN rail, occupies 4 x 9 mm pitches — that is 36 mm width, 91 mm height, 78.5 mm depth. IP20 finger-safe terminals — fine for enclosed panels; not for washdown zones. Overvoltage category IV — rated for the main distribution board, not just sub-distribution.
Suitability for isolation is confirmed under both standards. Separate earth-leakage protection block can be added. Contact position indicator and trip indicator give clear visual status.