The Siemens SENTRON 5SY5106-7CC is a 1-pole miniature circuit breaker (MCB) with a C tripping characteristic, rated 6 A at 35 °C and designed for DC circuits up to 220 V (250 V max).
DC Ratings & Derating
The 5SY5106-7CC is rated for DC only (not AC). At 35 °C it carries 6 A; derate to 5.32 A at 40 °C, 4.95 A at 45 °C, 4.55 A at 50 °C, and 4.1 A at 55 °C.
Width is 18 mm (1 modular unit), so it occupies one slot in a standard distribution board. Sealable, halogen-free, and silicon-free — relevant for food processing or clean-room panels where outgassing matters. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz, so it holds up on machine-mounted enclosures.
Compliance & Approvals
Rated for DC circuits per IEC 60947-2. The C characteristic (5–10× In magnetic trip) is standard for general-purpose loads with moderate inrush — think contactor coils, small DC motors, or control transformers. The neutral conductor is not switched (1-pole only). Operating humidity limits: max 95% up to 55 °C, derating to 55% at 70 °C and 35% at 75 °C. Temperature range: -40 to 75 °C.