The A9F55306 is a three-pole miniature circuit breaker from Schneider Electric’s Acti9 iC60H range, designed for low-voltage distribution systems that require reliable protection against short circuits and overloads. It is rated at 6 A and uses a D‑curve thermal‑magnetic trip unit, making it suitable for circuits with high inrush currents such as small motors, transformers, and solenoid loads. The breaker provides a short‑circuit breaking capacity of up to 30 kA at 220–240 V AC under the industrial EN/IEC 60947‑2 standard and 10 kA at 415 V AC under the residential EN/IEC 60898‑1 standard, while also covering DC applications up to 180 V. Dual certification allows it to be used in both industrial panels and residential boards. Key features include the VisiTrip indicator, which identifies the faulted pole after a trip, and the VisiSafe green strip, which confirms that the contacts are physically open for safe downstream work. A fast‑closing mechanism, independent of the toggle, contributes to an extended service life, with 10,000 electrical and 20,000 mechanical cycles. The device occupies six 9 mm pitches (54 mm width) and clips onto a 35 mm DIN rail. It offers IP20 terminal protection (IP40 when enclosed), operates from -35 °C to +70 °C, and is finished in white (RAL9003). With a compact 54 × 85 × 78.5 mm footprint and a net weight of 0.375 kg, it is a robust, space‑saving solution for demanding three‑phase applications.
