Specifications General Product Type: Switch‑disconnector / Molded Case Circuit Breaker (MCCB) Series / Family: ComPacT NSX‑NA Model: NSX630NA Number of Poles: 3 Rated Current (In): 630 A Mounting Type: Fixed panel or distribution board installation Application: Protection and isolation for low‑voltage three‑phase systems Electrical Ratings Rated Operational Voltage (Ue): Up to 690 V AC, 50/60 Hz Rated Insulation Voltage (Ui): 800 V AC Rated Impulse Withstand Voltage (Uimp): 8 kV Utilisation Category: AC‑22A / AC‑23A for general and motor loads Protection & Performance Thermal Current (Ith): 630 A at 50 °C Short‑Time Withstand Current (Icw): 6 kA for 1 s; 6 kA for 3 s; 2.32 kA for 20 s Short‑Circuit Making Capacity (Icm): 330 kA with upstream breakers; 8.5 kA alone Mechanical & Environmental Contact Position Indicator: Yes Control Type: Toggle handle Mounting Mode: Fixed (backplate) Pollution Degree: 3 Dimensions (approx.): 140 mm × 255 mm × 110 mm Mechanical Durability: ~15,000 cycles Standards & Compliance Standards: EN/IEC 60947‑3 Isolation: Suitable for use as an isolator Certifications: CE, EAC, CCC