The Schneider Electric A9N1P16CIN is a 1-pole miniature circuit-breaker from the Acti9 xC60 range, rated 16 A with a C-curve trip characteristic. It clips onto a standard 35 mm DIN rail and occupies 18 mm width — two 9 mm pitches — so it fits a compact panel layout.
Breaking capacity is 10 kA Icu at 220–240 V AC 50/60 Hz per IS/IEC 60947-2, which covers most commercial and light industrial distribution panels. At 12–48 V DC the rating rises to 15 kA Icu; at 60 V DC it drops to 6 kA Icu. The C-curve magnetic trip triggers at 8 x In ±20 % — 128 A nominal — so it handles moderate inrush from motor starters or lighting ballasts without nuisance tripping.
Termination and environmental
IP20 finger-safe protection is standard for enclosed panel use. Tropicalisation class 2 per IEC 60068-1 and 95 % relative humidity at 55 °C mean it holds up in warm, humid environments — think coastal or unconditioned electrical rooms.