The A9N17515 is a Schneider Electric iDPN N miniature circuit breaker from the Clario range — a 1P+N thermal-magnetic MCB rated at 4 A with a B-curve trip characteristic (magnetic trip 3...5 x In). Breaking capacity is 6 kA Icn at 230 V AC, 50/60 Hz, certified to EN/IEC 60898-1. The toggle gives local ON/OFF indication, and the white housing carries IP20 finger protection. No separate earth-leakage module is built in — that's a separate block if you need it.
Clip-on mounting on standard DIN rail. Depth is 78 mm, height 81 mm — check gland-plate clearance if the enclosure is shallow. The IP20 rating means it's for dry indoor enclosures only — no washdown exposure.