The Schneider Electric Acti9 iC60N A9F77406 is a four-pole miniature circuit breaker built for low-voltage distribution systems. It is rated 6 A and uses a C-characteristic thermal-magnetic trip unit, making it suitable for circuits with moderate inrush currents. The device provides short-circuit breaking capacities of 20 kA at 220–240 V AC under EN/IEC 60947-2 and 6,000 A at 400 V AC under EN/IEC 60898-1, and it satisfies both industrial and residential requirements. Its VisiTrip indicator helps maintenance staff locate the faulted circuit quickly, while the VisiSafe green strip confirms that contacts are physically open for safe downstream work. A fast-closing mechanism, independent of the toggle, contributes to a long service life, rated for 10,000 electrical and 20,000 mechanical cycles. The breaker has a 500 V AC rated insulation voltage and Class 3 limitation, which helps reduce downstream protection costs. It clips onto a 35 mm DIN rail, occupies eight 9 mm modules (72 mm wide), and measures 85 × 72 × 78.5 mm with a net weight of 0.5 kg. It offers IP20 terminal protection (IP40 when enclosed), operates from -35 °C to +70 °C, and comes in white (RAL9003). With pollution degree 3, overvoltage category IV, and a 54% recyclability potential, it is a durable and sustainable solution for three-phase circuits.
