The Schneider Electric C063L320FM is a ComPacT NS new generation 3-pole moulded-case circuit breaker (MCCB) from the NS630b...1600 range, rated 630 A at 50 °C with a MicroLogic 2.0 electronic trip unit.
Fixed-mount on a backplate, 210 mm wide × 327 mm high × 147 mm deep, with a 70 mm connection pitch — that's the standard ComPacT NS footprint, so it drops into existing cutouts and busbar spacing without panel rework. Front-connect both line and load sides, IP40 enclosure protection (IK07 impact rating), pollution degree 3. Overvoltage category III, suitability for isolation per EN/IEC 60947-2 — it's a service-entrance or main-distribution breaker that isolates the downstream panel when open.
Durability and application context
Rated for 10,000 mechanical cycles and 2,000 electrical cycles at full 630 A / 690 V — that's a distribution breaker, not a frequent-switching contactor. The 15 W power loss at rated current matters for enclosure thermal budgeting; in a sealed panel, that heat needs to be considered alongside other devices. Category A utilisation (no intentional short-time delay), so it coordinates with downstream breakers via instantaneous trip only.
