The Siemens 5SY6508-8 is a SENTRON 5SY6 miniature circuit breaker — 2-pole (1P+N), rated 8 A at 230 V AC with a D tripping curve. The 6 kA breaking capacity per EN 60898 covers most sub-distribution boards, and the 15 kA rating per IEC 60947-2 gives headroom for industrial panel feeders where fault current runs higher. It mounts on a DIN rail via the quick-assembly system, snaps into two width units (36 mm), and accepts solid or stranded conductors from 0.75 mm² up to 35 mm² at the combined top and bottom terminals.
Deployment context and environmental limits
Rated for ambient temperatures from -25 °C to +55 °C, with storage range from -40 °C to +75 °C — fine for unheated enclosures in temperate climates.
Rated per EN 60898 at 6 kA and per IEC 60947-2 at 15 kA (both AC and DC). Also carries a UL 1077 / CSA C22.2 No. 235 rating at 5 kA, which covers North American supplementary protection applications. Touch protection is built in.