The MGN60869 is a Schneider Electric C60N miniature circuit breaker from the Multi9 range, rated 20 A at 50 °C per EN/IEC 60947-2. It's a 1-pole unit with a C-curve trip characteristic — magnetic tripping at 8.5 x In ±20 % — and a 10 kA Icu breaking capacity at 240 V AC phase-to-neutral. That 10 kA rating means it can safely interrupt a fault current up to 10,000 A without welding or rupturing, which covers most commercial and light industrial panelboard applications. The service breaking capacity (Ics) is 7.5 kA at 240 V AC, or 75 % of Icu, so it's rated to clear a fault and still be usable afterward.
The 18 mm width (2 x 9 mm pitches) means it takes up a single module slot in a standard distribution board. Tunnel-type terminals accept 1 to 25 mm² rigid or flexible wire; strip length is 14 mm, torque to 2 N·m. Compatible with comb busbars on top or bottom, so daisy-chaining multiple poles in a panel is straightforward.
IP20 finger-safe terminals are fine inside an enclosure; no washdown rating here.