The Schneider Electric A9P64732 is an Acti9 iC40N miniature circuit breaker rated 32 A with a D tripping curve, 3 protected poles plus neutral (3P+N), and a 10 kA Icu breaking capacity at 400 V AC per EN/IEC 60947-2. It also carries a 6 kA Icn rating per EN/IEC 60898-1, so it meets both the industrial (IEC 60947-2) and residential/commercial (IEC 60898-1) standards — a dual-certification that simplifies BOM consolidation when a panel must satisfy both a distribution board spec and an industrial machine supply.
The D curve means the magnetic trip operates at 10–14× In (per EN/IEC 60898-1) or 12× In ±20% (per EN/IEC 60947-2). For a 32 A D-curve MCB, expect the magnetic hold to tolerate a transient surge well above 320 A before clearing. The 6 kA Icn (IEC 60898-1) is the service breaking capacity — the level at which it can break repeatedly without replacement. Thermal-magnetic trip technology with a 32 A continuous rating. Pollution degree 3 per EN/IEC 60947-2 means it's rated for conductive pollution environments — typical in industrial control panels where dust, moisture, or condensation are present.
The 3P+N form factor occupies 6 module pitches of 9 mm each — 54 mm total width. Neutral is on the left. Tunnel-type terminals accept 1–16 mm² rigid or 1–10 mm² flexible copper; tighten to 2 N·m. IP20 on the terminals, IP40 on the modular enclosure — sufficient for enclosed panel installation, not for washdown zones. The toggle handle provides ON/OFF indication plus a trip indicator (red flag when the breaker has tripped on fault). Padlocking option available for lockout/tagout.