The Schneider Electric DOM11346SNI-B is a Domae miniature circuit breaker (MCB), single-pole, rated 40 A with a C curve and a breaking capacity of 4.5 kA at 230/400 V AC 50/60 Hz per IEC 60898-1.
The C curve (5–10× In) is what governs coordination with downstream loads: it holds through motor starting surges but clears fast on hard faults. The 10,000-cycle electrical endurance (at rated voltage) and 10,000-cycle mechanical endurance give a service life well beyond typical residential or light commercial duty.
Panel integration
Tightening torque 3.5 N·m. Wire strip length 14 mm. IP20 finger-safe protection — fine inside an enclosed panel, not for wet locations. Compatible with comb busbars and distribution blocks for multi-pole feed.