The MGN25126 is a Schneider Electric C60H miniature circuit breaker from the Multi9 range, rated 3 A at 50 °C with a D tripping curve. The 3-pole design with thermal-magnetic trip unit handles motor and high-inrush loads where the D curve's 12 x In magnetic threshold avoids nuisance trips on startup.
Mounting & panel fit
Snaps onto 35 mm symmetrical DIN rail. Occupies 6 x 9 mm pitches (54 mm wide), 81 mm tall, 73 mm deep. IP20 finger-safe front, pollution degree 3 rated for industrial control panels.
Breaking capacity & selectivity
Rated Icu of 30 kA at 240 V AC drops to 15 kA at 415 V and 10 kA at 440 V — the voltage derating is steep, so verify the fault level at your system voltage. Ics (service breaking capacity) is 50 % of Icu at each voltage level, meaning the breaker can be reclosed after one fault at that reduced rating. Suitability for isolation confirmed per EN/IEC 60947-2, with a visible contact position indicator.