Specifications General Product Type: Molded Case Circuit Breaker (MCCB) Series / Family: ComPacT NSX N‑Frame Number of Poles: 3 (three-phase) Rated Current (In): 630 A Mounting Type: Fixed panel or distribution board installation Application: Protection of low‑voltage three‑phase power distribution circuits Electrical Ratings Rated Operational Voltage (Ue): Designed for low‑voltage AC systems (commonly up to ~690 V AC) Rated Frequency: 50/60 Hz Rated Insulation Voltage (Ui): Suitable for standard low‑voltage distribution insulation requirements Rated Impulse Withstand Voltage (Uimp): Designed to withstand typical transient overvoltages Protection & Trip Characteristics Trip Mechanism: Thermal‑magnetic (combination of thermal overload and magnetic short‑circuit protection) Overload Protection: Provided by the thermal element Short‑Circuit Protection: Provided by the magnetic element Tripping Behavior: Provides reliable protection against sustained overloads and high fault currents Breaking Capacity & Performance Breaking Capacity: Engineered to safely interrupt fault currents typically encountered in low‑voltage distribution systems Interrupting Performance: Reliable fault clearing to protect circuits, wiring, and connected equipment Mechanical & Environmental Terminal Connections: Screw or clamp terminals for secure conductor attachment Mechanical Durability: Built for dependable operation over repeated switching cycles Design: Compact modular housing suitable for integration into panels and switchboards Operating Environment: Indoor electrical distribution boards, switchgear, and control systems