The Siemens 5SY7405-8CC is a SENTRON miniature circuit breaker (MCB) with a D tripping characteristic, 4 poles, rated 0.5 A at 400 V AC.
Installation depth is 70 mm. Mount in any position.
Halogen-free and silicon-free (–), suitable for clean-room or sensitive electronics environments. Humidity tolerance: max 95% at 55 °C, derating to 35% at 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Mechanical life 10,000 operating cycles typical. Accepts supplementary devices for alarm or shunt-trip functions.