The Schneider Electric A9K23203 is a 2-pole Acti9 iK60N miniature circuit-breaker rated 3 A at 30 °C with a B tripping curve (3...5 x In magnetic limit). It delivers 6 kA breaking capacity (Icn) at 400 V AC 50/60 Hz per EN/IEC 60898-1 — enough for most final-distribution branch circuits in residential or light commercial panels where the prospective fault current stays under that threshold. The thermal-magnetic trip unit covers overload and short-circuit protection for two protected poles.
Depth is 78.5 mm, height 85 mm, so it clears most shallow consumer units and distribution boards. Tunnel-type terminals accept 1...25 mm² rigid or 1...16 mm² flexible on top or bottom; wire strip length 14 mm, tightening torque 2 N·m. IP20 finger-safe protection for the front face once installed.
