The C063H320FM is a Schneider Electric ComPacT NS new generation 3-pole MCCB rated 630 A at 50 °C with a MicroLogic 2.0 electronic trip unit. The 85 kA at 240 V AC is relevant for 208/240 V panelboards in North American installs. The electronic trip unit provides L (long-time overload) and I (instantaneous short-circuit) protection, with a 20-minute thermal memory that prevents nuisance tripping on repeated inrush events — useful for motor or transformer feeders where the first start pulls the trip curve close to the threshold.
Fixed-mount on a backplate, front-connected both sides, with a 70 mm connection pitch. The 327 mm height, 210 mm width, and 147 mm depth fit standard ComPacT NS630b…1600 switchboard cutouts. IK07 covers low-energy impacts (0.5 J).
Certified to EN/IEC 60947-2, suitability for isolation per that standard — meaning it can be used as a visible-break disconnect when locked in the OFF position. Overvoltage category III for fixed-installation distribution. Electrical durability: 2000 cycles at full 690 V In, 5000 cycles at 440 V In. Mechanical durability: 10,000 cycles. These are lower than a contactor's life, but typical for a molded-case breaker that's operated only for isolation or fault clearing.