The A9P55606 is a Schneider Electric Acti9 iC40H miniature circuit-breaker rated 6 A with a C-curve, 1P+N poles, and a 10 kA breaking capacity at 230 V AC per EN/IEC 60898-1. The 10 kA Icn means this breaker can safely interrupt a fault current up to 10,000 A at 230 V AC without welding contacts or rupturing the case, which covers most residential and light commercial service-entrance fault levels in a 230 V system. The 1P+N configuration switches the phase and provides a switched neutral that opens and closes with the phase pole, giving full isolation on the outgoing circuit.
Clip-on mounting to a 35 mm DIN rail (EN 60715), 18 mm width (2 x 9 mm pitches) — one standard modular slot. Depth of 74 mm and height of 85 mm fit standard distribution board enclosures. Tunnel terminals accept 1–16 mm² rigid or 1–10 mm² flexible cable; tightening torque is 2 N.m. The white housing with toggle and trip-indicator flag gives clear visual status.