The Schneider Electric A9F06425 is an Acti9 iC60H miniature circuit-breaker (MCB) rated for 25 A with a B-curve trip characteristic, 4 poles, and a 42 kA Icu breaking capacity at 12-133 V AC.
The 60947-2 rating (42 kA Icu at 12-133 V AC, 30 kA at 220-240 V, 15 kA at 380-415 V, 10 kA at 440 V) is the industrial breaking capacity — it tells you the MCB can safely interrupt a fault up to those levels without welding its contacts or exploding. The 60898-1 rating (15 kA Icn at 400 V) is the domestic/commercial rating. The overvoltage category IV and pollution degree 3 ratings mean this MCB is rated for main incoming supply panels, not just sub-distribution.
The 4-pole body occupies 8 x 9 mm pitches — 72 mm wide total. Terminals accept 1-25 mm² rigid or 1-16 mm² flexible wire; double terminals on top and bottom allow daisy-chaining without extra distribution blocks. IP20 finger-safe protection means it is for use inside an enclosure, not exposed. The toggle actuator and trip indicator give clear visual status for commissioning and maintenance.
Environmental and durability
Rated for 10,000 electrical cycles and 20,000 mechanical cycles — sufficient for most distribution panels where the MCB is operated infrequently (isolation switching).