The A9F06125 is a Schneider Electric Acti9 iC60H miniature circuit breaker rated 25 A with a B-curve trip characteristic, single-pole, for distribution panels on DIN rail. Breaking capacity hits 42 kA Icu at 12–60 V AC, giving headroom for high-fault panels without cascading upstream.
This iC60H carries a 42 kA Icu at 12–60 V AC — that's the maximum fault current it can interrupt without welding contacts or rupturing the case. At 220–240 V AC the rating drops to 15 kA Icu, still enough for most commercial distribution boards. The dual standard listing (EN/IEC 60947-2 and EN/IEC 60898-1) means it's certified for both industrial and household-style installations; the 60947-2 rating governs the SCCR you'd use in a UL 508A panel.
Mounts on standard DIN rail, occupies 2 x 9 mm pitches — 18 mm wide. Depth is 78.5 mm, height 91 mm. Terminals accept 1–25 mm² rigid or 1–16 mm² flexible; torque to 2 N·m. The trip indicator and contact position indicator give a quick visual on faulted circuits without opening the panel door.