The Schneider Electric A9N4P63CIN is an Acti9 xC60 miniature circuit breaker rated 63 A, 4-pole, C-curve, with a breaking capacity of 10 kA Inc at 380–415 V AC 50/60 Hz per IS/IEC 60947-2. Rated for 63 A continuous, the thermal-magnetic trip unit handles overloads and short-circuits. The C-curve magnetic trip fires at 8 x In ±20%, so it's sized for general-purpose distribution loads — lighting, small motors, control circuits — where inrush is moderate.
Installation & environment
IP20 finger-safe front; pollution degree 3 (conductive pollution, typical for industrial enclosures). Overvoltage category IV, so it's rated for the main panel incoming supply, not just sub-circuits. Tightening torque 3.5 N·m. Wire strip length 13 mm for top or bottom connection.