The Siemens SENTRON 5SY6563-7CC is a 2-pole (1P+N) miniature circuit breaker with a C-curve tripping characteristic, rated 63 A at AC and a 6 kA breaking capacity per EN 60898. The 6 kA rating at 400 V is the standard for most commercial and light industrial distribution boards; for UL-tracked jobs, it carries a 5 kA interrupting rating per UL 1077 and CSA C22.2 No.235.
The combined terminal design (top and bottom) accepts standard screw-clamp wiring; touch protection is built in.
Thermal derating and environmental range
The 63 A rating holds at 35 °C ambient. At 40 °C it derates to 60.04 A; at 50 °C to 56.89 A; at 55 °C to 55.25 A. Operating range spans -40 °C to 75 °C, with humidity limits of 95% up to 55 °C, 55% up to 70 °C, and 35% at 75 °C. Vibration resistance per IEC 60068-2-6 covers ±1 mm at 5–25 Hz and 50 m/s² at 25–150 Hz — adequate for machine-mounted panels on pumps or conveyors.