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NSX400/630 4P

The Schneider Electric Masterpact NSX400/630 series are four-pole molded case circuit breakers (MCCBs) from the flagship Masterpact NSX range, representing two high-current frame sizes (400A and 630A). These devices are engineered for superior protection, control, and connectivity in critical four-wire electrical distribution systems.

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Parameter NSX400 4P NSX630 4P Product Line / Frame Size Masterpact NSX400 Masterpact NSX630 Rated Current (In) 400 A (Frame Rating. Set via trip unit) 630 A (Frame Rating. Set via trip unit) Number of Poles 4 (L1, L2, L3, N) 4 (L1, L2, L3, N) Breaking Capacity (To be Specified) N, S, H, L (e.g., NSX400H) N, S, H, L (e.g., NSX630H) Typical Icu at 415V AC (H rating) 100 kA (IEC 60947-2) 100 kA (IEC 60947-2) Rated Operational Voltage (Ue) Up to 690 V AC Up to 690 V AC Trip Unit Electronic Micrologic Only (Wide range: 2.0/5.0/6.0/7.0 A/E/M for protection, measurement, communication) Electronic Micrologic Only (Same range as NSX400) Communication Native in advanced units (Micrologic A, E). Supports Ethernet, Modbus TCP, Profibus DP. Native in advanced units (Micrologic A, E). Supports Ethernet, Modbus TCP, Profibus DP. Standard IEC 60947-2 IEC 60947-2 Mounting Style Primarily Withdrawable (standard), also Fixed. Primarily Withdrawable (standard), also Fixed. Typical Width (Withdrawable 4P) Approx. 336 mm Approx. 336 mm (Similar modular width) Connection Front or Rear (depends on kit). Front or Rear (depends on kit).