What it is and where it fits
The Schneider Electric A9N2P10BGN is a 2-pole miniature circuit-breaker from the Acti9 xC60 series, rated 10 A with a B-curve trip characteristic. It clips onto a 35 mm DIN rail and occupies 4 x 9 mm pitches — 36 mm wide — so it slots into a standard distribution board alongside other Acti9 modules. The thermal-magnetic trip unit handles overloads and short-circuits; the B-curve means magnetic tripping occurs at 3 to 5 times rated current, making it the right choice for resistive or general-purpose loads where inrush is low — lighting circuits, socket outlets, small control transformers.
Breaking capacity and standards
Breaking capacity is 10,000 A Icn at both 240 V and 415 V AC, 50/60 Hz, certified to IS/IEC 60898-1. That 10 kA rating at 415 V is the figure that governs selectivity in a three-phase distribution panel — it tells you the breaker can safely interrupt a fault up to that level without upstream devices needing to clear it. Pollution degree 3 and overvoltage category IV mean it's rated for the harsh electrical environment of a main distribution board, not just a clean sub-panel.
Integration notes
Clip-on mounting to 35 mm DIN rail — no tools needed for installation. Terminals accept up to 25 mm² rigid or 16 mm² flexible; strip length 13 mm. Tightening torque 2 N.m. The white housing with toggle control and ON/OFF indication gives clear visual status. IP20 means it's protected against finger contact but not washdown — keep it inside the enclosure.