The Schneider Electric DOM11342SNI is a Domae-series miniature circuit-breaker (MCB) rated for 16 A on a single pole, with a C-trip curve and a 4.5 kA breaking capacity at 230 V AC, 50 Hz.
This part is listed as obsolete by the manufacturer.
The single-pole form factor occupies two 9 mm module pitches on the DIN rail, leaving space for additional breakers in the same enclosure.
Conforms to SNI 04-6507.1 and IEC 60898-1, which covers the performance and testing of MCBs for household and similar installations. The grey housing is standard for the Domae range. Comb busbar and distribution block compatibility is confirmed, simplifying panel wiring.