The Schneider Electric MGN25139 is a C60H Multi9 miniature circuit breaker (MCB) with 4 protected poles, a D-curve trip characteristic, and a 2 A rated current at 50 °C per EN/IEC 60947-2. It's built for distribution boards where high inrush loads — motor starters, transformers, or lighting ballasts — need a magnetic trip threshold of 12 x In (±20 %) to avoid nuisance tripping on startup.
Rated Icu of 30 kA at 240 V AC phase-to-phase, 15 kA at 415 V, and 10 kA at 440 V. The Ics (service breaking capacity) is 50 % of Icu at each voltage level — 15 kA, 7.5 kA, and 5 kA respectively. That means after clearing a fault at the Ics level, the breaker is still usable, though you'd want to verify its condition before returning it to service. For a 2 A D-curve on a 4-pole frame, this gives solid headroom for downstream coordination in a 240 V or 415 V distribution panel.
The 4-pole body takes 8 x 9 mm pitches (72 mm wide). IP20 finger-safe terminals suit enclosed panel mounting. Separate earth-leakage block (Vigi) can be added on the load side for RCD protection.
Listed as current production. The C60H series is a long-running Multi9 platform; the MGN25139 is the standard catalog number for the 2 A D-curve 4P variant. Compliance documentation covers EN/IEC 60947-2, pollution degree 3, and isolation suitability.