What this 63 A C-curve MCB is for
The Schneider Electric A9F68163 is a 1-pole Acti9 iT60 miniature circuit breaker rated 63 A with a C-curve trip characteristic.
This breaker carries a 36 kA Icu at 12-60 VAC (EN/IEC 60947-2) and 20 kA Icu at 100-133 VAC, dropping to 10 kA Icu at 220-240 VAC. Under EN/IEC 60898-1 it is rated 6 kA Icn at 230 VAC.
Snaps onto a DIN rail (EN/IEC 60715). Terminals accept 1-35 mm² rigid or 1-25 mm² flexible copper; torque to 3.5 N·m. The removable comb busbar (installed) lets you daisy-chain phases across adjacent breakers without extra wiring. IP20B finger-safe terminals — suitable for enclosed panels only, not outdoor exposed mounting.
Suitability for isolation is confirmed under both standards. Pollution degree 3 (industrial environment). Overvoltage category IV. Tropicalisation class 2 per EN/IEC 60068-2-78 (95 % RH).
