The Schneider Electric A9N2P04DGN is a 2-pole miniature circuit-breaker from the Acti9 xC60 series, rated 4 A with a D tripping curve.
Breaking capacity is 10 kA Icn at both 240 V and 415 V AC, 50/60 Hz, certified to IS/IEC 60898-1. Rated operational voltage covers 220...240 V AC and 380...415 V AC, so it handles single-phase and three-phase line-to-line connections within those ranges. Overvoltage category IV means it's rated for the mains supply entry point, not just downstream sub-distribution. Pollution degree 3 and tropicalisation class 2 (per IEC 60068-1) mean it tolerates conductive dust and high humidity — 95 % RH at 55 °C — so it holds up in non-air-conditioned industrial enclosures.
