The Siemens SENTRON 5SY6515-8 is a 2-pole miniature circuit breaker (1P+N) rated at 1.6 A with a D tripping characteristic. At 230 V AC, the 1.6 A rating governs the continuous load; the breaker clears faults at 6 kA per EN 60898 for standard domestic/commercial duty, and up to 30 kA per IEC 60947-2 for industrial panels where fault current is higher. That dual rating is the key: if your panel SCCR is above 6 kA, the 30 kA IEC rating keeps you coordinated without upsizing to a larger frame. The combined top and bottom terminals mean you can feed from either direction without rotating the breaker — saves time on a crowded DIN rail. Depth is 76 mm, width 36 mm (2 width units), height 90 mm; installs in any position, ambient -25 to +55 °C, storage -40 to +75 °C. IP20 with connected conductors, overvoltage category III.
Panel integration note
The 36 mm width (2 width units) fits standard enclosure cutouts. Sealable, so you can lock the toggle position for safety lockout/tagout. Touch protection is built in, so no extra finger-safe covers needed on the terminals.