The A9F08404 is a Schneider Electric Acti9 iC60H miniature circuit-breaker (MCB) rated at 4 A with 4 protected poles and a D tripping curve. It is a thermal-magnetic device for distribution applications, mountable on a DIN rail (9 mm pitch, 8 modules wide). Breaking capacity reaches 70 kA Icu at 380-415 V AC (50/60 Hz) per EN/IEC 60947-2, and 10 kA Icn at 400 V per EN/IEC 60898-1. This dual rating lets you use it in industrial panels (60947-2) or final-distribution boards (60898-1) without re-specifying.
Panel builders should account for the 78.5 mm depth behind the mounting surface when sizing gland plates or enclosure depth. Terminals accept 1-25 mm² rigid or 1-16 mm² flexible wire (double terminal top and bottom). The IP20 finger-safe front allows live panel access for troubleshooting.
Dual-certified to EN/IEC 60947-2 (industrial) and EN/IEC 60898-1 (household/residential). Suitability for isolation is confirmed under both standards. Pollution degree 3, overvoltage category IV, and IP20 protection. The trip indicator provides local visual signalling of the breaker state without needing a multimeter.