The Schneider Electric A9N4P01CGN is a 4-pole miniature circuit breaker from the Acti9 xC60 range, rated at 1 A with a C-curve trip characteristic. Breaking capacity is 10 kA Icn at both 240 V and 415 V AC, certified to IS/IEC 60898-1. The C-curve means magnetic trip occurs between 5 and 10 times rated current (5–10 A for this 1 A unit). That's the standard curve for general-purpose distribution and moderate inrush loads like small contactors or lighting ballasts — not for motor starting, which would need a D-curve.
Clip-on mounting to a 35 mm DIN rail, 4-pole width at 72 mm (9 mm per pitch × 8 pitches). IP20 finger-safe terminals. Pollution degree 3, overvoltage category IV — this breaker is rated for the main distribution panel environment, not just sub-panel or final-circuit duty. The tropicalisation treatment (2-class per IEC 60068-1) means it handles the humidity and condensation cycles common in coastal or unconditioned plant rooms.