What this MCB carries — and what it clears
The A9F06150 is a 1-pole Acti9 iC60H miniature circuit breaker rated 50 A with a B-curve magnetic trip at 4 x In ±20 %. It is listed to both EN/IEC 60947-2 (Category A) and EN/IEC 60898-1, so it can serve distribution panels under either standard — the 60947-2 rating gives the higher short-circuit capacity numbers for industrial coordination studies. Breaking capacity reaches 42 kA Icu at 12–60 V AC, 15 kA Icu at 220–240 V AC, and 10 000 A Icn at 230 V AC under the household standard. The 78.5 mm depth and 18 mm width (2 x 9 mm pitches) fit a standard DIN-rail enclosure; double terminals top and bottom accept up to 35 mm² rigid or 25 mm² flexible.
The 18 mm width occupies two 9 mm module pitches — one pole, one unit. Double terminals top and bottom allow through-wiring or daisy-chaining without extra links. Wire stripping length is 14 mm; tightening torque 3.5 N.m. IP20 finger-safe protection applies once installed in an enclosure.
Standards and approvals — what they certify
Dual-rated to EN/IEC 60898-1 (the household standard for MCBs) and EN/IEC 60947-2 (the industrial standard for circuit breakers). The 60947-2 listing gives the higher Icu breaking capacities needed for industrial coordination studies; the 60898-1 listing gives the Icn rating for residential or commercial distribution. Overvoltage category IV (equipment at the origin of the installation, e.g. main panel). Suitability for isolation is confirmed under both standards, meaning the breaker can be used as a disconnecting means when visibly open.