The C63V35E630 is a Schneider Electric ComPacT NSX moulded-case circuit breaker rated 630 A at 40 °C, with an 85 kA Icu breaking capacity at 500 V AC per IEC 60947-2. The MicroLogic 5.3 E electronic trip unit gives you L (long-time overload), S (short-time short-circuit), and I (instantaneous) protection curves, plus energy metering and communication of data like demand values and time-stamped event tables. The 20-minute thermal memory before and after tripping means the trip unit remembers its thermal state through a reclose cycle, so nuisance re-tripping on a hot breaker is less likely. It's a 3-pole (3P) unit, front-connected both sides, with a toggle control and LCD display. Mounts on a backplate, horizontally or vertically flat.
This breaker is designed for distribution applications — main or feeder protection in industrial and commercial switchboards. The ComPacT NSX series is a common choice for panel builders who need a compact, high-breaking-capacity MCCB with electronic trip flexibility. The 45 mm connection pitch and 6 slots for auxiliaries or communication modules make it straightforward to integrate into a standard backplate layout. At 110 mm deep, 140 mm wide, and 255 mm tall, it's a standard footprint for this class — check your enclosure depth before committing.