The Schneider Electric A9KF71404BQ is an Acti 9 K60H miniature circuit breaker (MCB) — 4-pole, 4 A rated current, C trip curve, with a 10 kA breaking capacity. Supplied as a set of 3 units.
The 4 A rating sizes it for a branch circuit feeding a few contactor coils, a small PLC power supply, or a string of indicator lamps — not a motor circuit or a high-inrush load.
