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NSX 4P 100/160A

The Schneider Electric Compact NSX series 4-pole (3P+N) molded case circuit breakers in 100A and 160A ratings represent the premium tier of compact MCCBs. Designed for main and sub-distribution protection in three-phase four-wire systems, they provide superior performance, reliability, and flexibility for commercial, industrial, and infrastructure applications where neutral protection or complete circuit isolation is required.

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Parameter NSX 4P 100A NSX 4P 160A Product Series Compact NSX Frame Designation NSX100 NSX160 Max. Rated Current (Iu) 100 A 160 A Number of Poles 4 Poles (3P + N) – All poles protected. Rated Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Breaking Capacity (Icu @ 400V) 50 kA, 70 kA, 100 kA (Selectable via model suffix: N, H, L/S) Trip Unit Types Thermal-Magnetic (TM) or Electronic (Micrologic 2.0/5.0/6.0) Short-Time Withstand (Icw) Typically 10-15 kA for 1s (100A) 15-25 kA for 1s (160A) Mounting Type Fixed (F) or Plug-in (P) versions available Connection Front or Rear Width (4P) ~140 mm (Fixed, TM) ~210 mm (Fixed, Electronic) Standards IEC 60947-2, UL 489, CCC, CE