The DOM11349SNI is a Schneider Electric Domae-series miniature circuit breaker (MCB) — 3-pole, 16 A rated current, C-curve trip characteristic, with a 4.5 kA breaking capacity at 400 V AC conforming to IEC 60898-1.
The 380–415 V AC operating voltage covers standard three-phase line-to-line supplies.
Clip-on mounting to a standard DIN rail (35 mm) — no tools needed for installation. The 3-pole body occupies three 9 mm module pitches (27 mm total width). Compatible with comb busbars and distribution blocks, so daisy-chaining phases across multiple breakers in a row is straightforward.