The Schneider Electric A9P64306 is a 3-pole Acti9 iC40N miniature circuit breaker rated at 6 A with a D tripping curve. The D-curve magnetic trip operates at 10–14 × In (per EN/IEC 60898-1) or 12 × In ±20 % (per EN/IEC 60947-2), which means it tolerates the high inrush of motor or transformer loads without nuisance tripping — the right choice when the load draws a short-duration surge well above running current.
Breaking capacity and dual-standard rating
This breaker carries two breaking-capacity figures: 10 kA Icu at 400 V AC per EN/IEC 60947-2 (the industrial standard for isolation and fault clearing) and 6000 A Icn at 400 V AC per EN/IEC 60898-1 (the residential / commercial standard). The 10 kA figure governs its use in industrial panels where fault current may be higher; the 6 kA rating satisfies domestic distribution board requirements.
Tunnel terminals accept 1–16 mm² rigid or 1–10 mm² flexible copper; strip length 14 mm, tighten to 2 N·m. IP20 finger-safe on the front, IP40 inside a modular enclosure.