The Schneider Electric Multi9 C60H-DC MGN61869 is a 1-pole DC miniature circuit-breaker rated 25 A at 50 °C per EN/IEC 60947-2, with a K-curve magnetic trip threshold of 12 x In ±20 % DC. Breaking capacity reaches 20 kA Icu at 110 V DC, 10 kA at 220 V DC, and 6 kA at 250 V DC — so it handles the high fault currents typical of battery banks and DC bus supplies without cascading upstream.
This is a dedicated DC breaker, not an AC-rated unit derated for DC — the arc chamber and magnetic trip are designed for the sustained arc of DC faults. Curve K (12 x In magnetic trip) is a good fit for DC motor or battery loads where inrush is moderate but short-circuit protection must be fast. The 25 A rating at 50 °C means no derating at typical panel ambient; above that, apply the manufacturer's thermal curve.
Clip-on mount to standard 35 mm DIN rail, 18 mm width (2 modules). Tunnel terminals accept up to 25 mm² rigid stranded (AWG 4) or 16 mm² flexible; wire strip length 14 mm, tightening torque 2.5 N·m. IP20 finger-safe terminals; IP40 when installed in a modular enclosure. The toggle provides ON/OFF indication and is padlockable for lockout/tagout.