The A9F08101 is a 1 A, D-curve miniature circuit breaker from Schneider Electric's Acti9 iC60H series. Rated 70 kA Icu at 240 V AC (EN/IEC 60947-2), it handles fault currents up to that level without welding its contacts, which is substantial for a 1-pole 18 mm wide unit. The thermal-magnetic trip element handles the overload side; the magnetic coil handles short-circuit. It's certified to both EN/IEC 60898-1 (household MCB standard) and EN/IEC 60947-2 (industrial standard), so it qualifies for either a residential load center or an industrial panelboard.
Width is 18 mm (2 x 9 mm pitches), so it occupies one modular space in the enclosure. Depth of 78.5 mm and height of 91 mm — check gland-plate clearance if the panel is shallow. Double terminals top and bottom accept 1–25 mm² solid or 1–16 mm² flexible; torque to 2 N·m. Strip length 14 mm. The toggle switch provides local on/off control with a trip indicator that shows a red flag when the breaker has tripped. IP20 finger-safe terminals — fine for enclosed panels, not for washdown zones.