The Siemens SENTRON 5SY7563-7CC is a 2-pole miniature circuit breaker (1P+N) rated 63 A at AC with a C tripping characteristic. It's built for panel integration via a quick assembly system, occupies 2 modular width units (36 mm wide), and mounts in any position. The 20 kA breaking capacity per IEC 60947-2 gives solid fault clearance for industrial distribution boards — enough headroom for most sub-distribution applications without cascading upstream.
Ratings and what they mean for fit
The 63 A rating at AC is the nominal current at 40 °C ambient. At higher panel temperatures the breaker derates: 59.54 A at 40 °C, 57.71 A at 45 °C, 55.82 A at 50 °C, and 53.86 A at 55 °C. If your panel runs warm, size the load to the derated value, not the 63 A label. The C characteristic means the magnetic trip fires at 5–10× In — suited for moderate inrush loads like small motors or transformers where a B curve would nuisance-trip. Breaking capacity is 20 kA per IEC 60947-2, and 5 kA per UL 1077 / CSA C22.2 No. 235. If the installation requires UL listing, the 5 kA figure governs — verify the available fault current at the panel. Overvoltage category III and pollution degree 3 mean it's rated for fixed-installation distribution boards, not just final circuits. The breaker switches the neutral conductor (1P+N configuration) — the neutral pole is switched but not protected against overcurrent. That's standard for single-phase branch circuits where neutral protection isn't required by code, but check your local wiring rules if you expect a fully protected neutral.
Deployment context
Snaps onto DIN rail via the quick assembly system, 36 mm wide (2 MW). The combined top and bottom terminals accept conductors with touch protection (IP20 with connected conductors). Installation depth is 70 mm, overall depth 76 mm — leaves clearance for a standard 80 mm deep enclosure. Sealable, halogen-free, silicon-free construction suits food, pharma, or clean-room panels where outgassing matters. Rated for mechanical engineering and industry per the suitability listing. Vibration resistance tested to IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz — survives normal machine vibration without nuisance tripping. Ambient range -40 °C to 75 °C covers most indoor industrial environments, including unheated warehouses.