The Schneider Electric A9F05302 is an Acti9 iC60N miniature circuit breaker, 3-pole, rated 2 A with a D tripping curve. It carries a 50 kA Icu breaking capacity at 415 V AC per EN/IEC 60947-2 and 6 kA Icn at 400 V per EN/IEC 60898-1 — the dual standard rating means it qualifies for both industrial (60947-2) and domestic/commercial (60898-1) installations, so you can spec it into a distribution board or an industrial panel without changing the part number. At 2 A, this is a control-circuit or instrumentation feeder breaker, not a main distribution device.
At 440 V it drops to 25 kA Icu, and at 600 V (if applicable) it falls further; the 6 kA Icn at 400 V under 60898-1 is the lower service rating for domestic-style coordination. For industrial panels, the 60947-2 figures govern, and the 50 kA at 415 V means you can place this downstream of a transformer rated up to about 2 MVA and still maintain selectivity with a larger upstream device.
Snap-on DIN rail mount, 6 x 9 mm pitches wide (54 mm). Double terminals top and bottom accept up to 25 mm² rigid or 16 mm² flexible — plenty for a 2 A circuit where you'd typically run 1.5 or 2.5 mm². IP20 finger-safe front; the trip indicator shows clear local signalling.