The Schneider Electric A9N1P63CIN is a 1-pole Acti9 xC60 miniature circuit-breaker rated at 63 A with a C curve, designed for distribution applications per IS/IEC 60947-2.
Breaking capacity is 10 kA Icu at 220…240 V AC, 15 kA Icu at 12…48 V DC, and 6 kA Icu at 60 V DC, all per IS/IEC 60947-2. That 10 kA at 240 V AC covers most service-entrance fault levels in IEC-based distribution; if your SCCR study calls for higher, you'd step up to an iC60 or Compact NSX. Thermal-magnetic trip unit, pollution degree 3, overvoltage category IV — this breaker is rated for the dirty, surge-prone environment you find in main distribution boards, not just clean subpanels. The IP20 finger-safe terminals accept up to 35 mm² rigid or 25 mm² flexible on the bottom biconnect terminals, with a 3.5 N·m tightening torque.
