The Siemens SENTRON 5SY6263-7CC is a 2-pole miniature circuit breaker with a C tripping characteristic, rated 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235.
Rated at 400 V AC (440 V max multi-phase or single-phase) and 50/60 Hz, this MCB handles standard industrial supply voltages across most regions. The 6 kA breaking capacity per EN 60898 covers typical panel fault levels; the 5 kA rating per UL 1077 / CSA 235 confirms it for North American supplementary protection applications. Mounting position is any, so vertical or horizontal DIN-rail orientation works. The quick assembly system and combined terminals (top and bottom) speed up busbar and wiring connections.
Where it fits — panel integration
Vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz) confirms it for machine-mounted cabinets on conveyors or compressors.
Temperature derating and ambient limits
Rated for ambient temperature from -40 °C to 75 °C, with derating above 55 °C: max 95% humidity at 55 °C, 55% at 70 °C, 35% at 75 °C. The C-curve trip thresholds shift with temperature — if the panel runs hot (near 75 °C), expect the breaker to trip slightly faster at a given overload.