The Schneider Electric MGN60879 is a C60N miniature circuit breaker from the Multi9 range, rated 6 A at 50 °C with a C-curve trip characteristic (magnetic trip at 8.5 x In +/- 20 %). It's a 2-pole unit, Category A per EN/IEC 60947-2, meaning it's not intended for selectivity under short-circuit conditions — it clears faults fast, which is what you want in a distribution sub-feed or a final branch circuit where you don't need cascaded coordination. The C-curve holds through mild inrush and trips on moderate overloads. Magnetic trip at 8.5 x In +/- 20 %.
This breaker carries a 20 kA Icu at 240 V AC phase-to-phase, 10 kA at 415 V, and 6 kA at 440 V, all per EN/IEC 60947-2. The Ics is 75 % of those figures.
Snaps onto 35 mm symmetrical DIN rail, fixed mounting. Width is 36 mm, which is 4 module pitches at 9 mm each. Depth is 73 mm, height 81 mm — standard Multi9 footprint, so it fits alongside other C60 breakers, RCCBs, and auxiliaries on the same rail without spacing issues. Wire stripping length is 14 mm. The breaker is compatible with comb busbars on top or bottom, which speeds up panel wiring on multi-pole distribution boards.