The Schneider Electric A9K23102 is a 2 A, single-pole miniature circuit breaker (MCB) from the Acti9 iK60 series, built to EN/IEC 60898-1 for residential and light commercial distribution boards. Rated 2 A at 30 °C, it protects a single branch circuit on 230 V AC networks at 50/60 Hz, with a 6 kA breaking capacity (Icn) that handles typical domestic fault levels.
Clip-on mounting to a standard 35 mm DIN rail, 18 mm width (2 x 9 mm pitches), 85 mm tall, 78.5 mm deep — fits a standard distribution board without overhang. Tunnel terminals accept 1–25 mm² rigid or 1–16 mm² flexible cable; strip 14 mm and torque to 2 N·m. IP20 finger-safe front, so it's fine inside an enclosed panel but not for wet or dusty locations.