The MGN61801 is a 1-pole DC miniature circuit breaker from the Schneider Electric Multi9 C60H-DC series, rated 8 A at 50 °C per EN/IEC 60947-2. It's a thermal-magnetic breaker with a B curve — magnetic trip at 5.5 x In ±20% DC — designed for DC network protection in distribution panels.
Breaking capacity is the real differentiator here: 20 kA Icu at 110 V DC, 10 kA at 220 V DC, and 6 kA at 250 V DC. The 6 kA at 250 V is the ceiling; if your system fault current exceeds that at 250 V, you need a higher-rated device upstream.
Clip-on mount to DIN rail, 18 mm width (2 x 9 mm pitches), 81 mm height, 73 mm depth. Strip length 14 mm. IP20 finger-safe on the front, IP40 inside the modular enclosure. Padlockable toggle for lockout/tagout.
