The C063B3WM is a basic frame from the Schneider Electric ComPacT NS630b...1600 new generation range — a withdrawable, manually operated 3-pole chassis rated 630 A at 50 °C. It ships without a control unit or protection module (the 'without protection' designation), so it is a bare frame you fit with the appropriate trip unit for your distribution application. The 200 kA Icu at 380/415 V AC 50/60 Hz (IEC 60947-2) means it can interrupt fault currents up to that level without failing — critical for high-fault-capacity switchboards where a lower-rated frame would cascade upstream.
Breaking capacity and duty ratings
The LB breaking capacity code signals the high-end variant: 200 kA Icu at 220/240 V, 380/415 V, and 440 V AC; 100 kA at 500/525 V; 75 kA at 660/690 V. The 40 kA integral instant protection is a built-in magnetic trip threshold — the frame itself will open on a massive fault even without a control unit fitted.
The ComPacT NS630b new generation is the active platform.