The Schneider Electric A9N1P40CGN is an Acti9 xC60 miniature circuit breaker — a 1-pole thermal-magnetic MCB rated 40 A with a C curve (magnetic trip between 5 and 10 times In). It breaks 10000 A Icn at 240 V AC 50/60 Hz, certified to IS/IEC 60898-1. The C curve suits general-purpose loads like socket circuits, lighting, and small motor feeders where inrush is moderate.
The 18 mm width (1 module) and 77.5 mm depth mean it fits a standard distribution board with no overhang. Two 9 mm pitches confirm the module count. IP20 finger-safe front — fine for enclosed panels; not rated for washdown.
Certified to IS/IEC 60898-1, the Indian-standard derivative of IEC 60898 for MCBs in household and similar installations. Pollution degree 3 — suitable for environments with conductive pollution or occasional condensation. Overvoltage category IV — rated for the main distribution board, not just sub-circuits. Earth-leakage protection requires a separate block — this is a plain MCB, not an RCBO.