The MGN60906 is a 4-pole C60N miniature circuit breaker from the Multi9 range, rated 10 A at 50 °C per EN/IEC 60947-2. The C-curve (magnetic trip at 8.5 x In ±20%) means it handles moderate inrush from motor starters and small transformers without nuisance tripping, while still clearing short circuits fast enough to protect the downstream cable. Breaking capacity is 20 kA Icu at 240 V AC phase-to-phase, dropping to 10 kA at 415 V and 6 kA at 440 V. That 20 kA rating at 240 V is the headline number — it tells you this breaker can safely interrupt a fault up to 20,000 A at that voltage without welding or rupturing. Mounts on a standard 35 mm symmetrical DIN rail — 8 module pitches wide (72 mm). The thermal-magnetic trip unit is fixed (non-interchangeable), and the toggle gives local ON/OFF indication.
Integration notes
The breaker accepts comb busbars and distribution blocks on top or bottom, which simplifies panel wiring when grouping multiple MCBs. Ambient operating range is -30 to 70 °C, storage -40 to 80 °C. Mechanical durability is 20,000 cycles; electrical durability is 10,000 cycles per EN/IEC 60947-2.