The Schneider Electric DOMF01210 is a Domae-series miniature circuit breaker (MCB) — a thermal-magnetic device rated 10 A with a C-curve (magnetic trip at 5 to 10 times In) and a 6 kA breaking capacity (Icn) per IEC 60898-1. Two poles, one protected pole, left-side neutral. It clips onto a DIN rail, occupies 4 x 9 mm pitches (36 mm wide), and is rated for 230 V AC 50/60 Hz networks.
The C-curve (5–10 x In) means it will hold through moderate inrush from motor or lighting loads without nuisance tripping, but still clears fast on a hard short. Thermal-magnetic trip gives you both overload protection (bimetal strip) and short-circuit protection (solenoid). Mounting is clip-on DIN rail (per), and the 18 mm phase-to-phase pitch matches standard busbar systems. Strip length is 14 mm. The IP20 finger-safe front and IP40 modular enclosure suit enclosed distribution boards — not washdown environments.
The DOMF01210 is listed as current-production. It carries CE marking and is built to IEC 60898-1. No official successor or phase-out notice is recorded.