The Schneider Electric A9F05150 is a 1-pole Acti9 iC60N miniature circuit-breaker rated at 50 A with a D tripping curve. It protects downstream distribution circuits against overloads and short-circuits, and it does so under two standards at once — EN/IEC 60898-1 for household-type installations and EN/IEC 60947-2 for industrial panel duty. That dual certification means the same part can serve a building distribution board or an industrial control cabinet without requalifying the BOM line. If you are replacing a legacy thermal-magnetic breaker on a conveyor drive or a pump panel, this curve is the one that meets it where it is without gutting the coordination study.
The A9F05150 has 36 kA Icu at 12-60 V AC and 10 kA Icu at 220-240 V AC per EN/IEC 60947-2, plus 6 kA Icn at 230 V AC per EN/IEC 60898-1. On DC, it breaks 15 kA at 12-60 V DC and 10 kA at 60-72 V DC. Limitation class is 3 per EN/IEC 60898-1.
Height is 91 mm, depth 78.5 mm. Terminals accept 1-35 mm² rigid or 1-25 mm² flexible copper, with a tightening torque of 3.5 N.m. The double-terminal design (top and bottom) lets you loop a feed-through busbar or daisy-chain the outgoing side without piggyback terminals. Wire stripping length is 14 mm — standard for this class, but worth confirming your ferrule length if using pre-terminated cables.
Environmental and compliance details
IP20 rated (finger-safe terminals, no washdown protection — keep it inside the enclosure). Overvoltage category IV. Insulation voltage is rated at 500 V AC.