The Siemens SENTRON 5SY8216-7 is a 2-pole miniature circuit breaker with a C tripping characteristic, rated for 30 kA interrupting capacity at 400 V AC per IEC 60947-2. It also carries a 15 kA DC rating at 60 V per the same standard, and 5 kA under UL 1077 and CSA C22.2 No.235.
Installation depth is 70 mm. Mounts in any position — no derating for orientation. The IP20 rating applies with connected conductors; in a closed panel that's standard. Ambient range spans -40 °C to 75 °C, with humidity limits of 95% at 55 °C, 55% at 70 °C, and 35% at 75 °C. Vibration resistance per IEC 60068-2-6: ±1 mm at 5 to 25 Hz, 50 m/s² at 25 to 150 Hz.