The Schneider Electric A9F05316 is an Acti9 iC60N miniature circuit breaker — 3 poles, 16 A rated current, D curve. The D curve magnetic trip fires at 12 x In (±20 %), so it tolerates the inrush of motor and transformer loads without nuisance tripping while still clearing a hard fault. 36 kA Icu at 12–133 V AC and 20 kA at 220–240 V AC means it can interrupt high fault currents on the secondary side of a distribution transformer; at 400 V the Icu drops to 10 kA, and the Icn per EN/IEC 60898-1 is 6 kA at 400 V — the lower figure governs for residential or light commercial final circuits. Dual-rated to EN/IEC 60947-2 (industrial) and EN/IEC 60898-1 (domestic), so it fits either a panelboard or an industrial load center.
Snaps onto a DIN rail — 6 x 9 mm pitch modules wide (54 mm). Double terminals top and bottom accept 1–25 mm² rigid or 1–16 mm² flexible; torque to 2 N·m. IP20 finger-safe front, so it can live in an open panel without shrouds. Trip indicator and contact position indicator give a visual on state without needing to measure downstream voltage. Earth-leakage protection is handled by a separate block (not integral).
Current production — no phase-out or NRND flag on record.