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NSX250/4 250A

The Schneider Electric Masterpact NSX250 is a high-performance, four-pole, 250A molded case circuit breaker (MCCB) from the flagship Masterpact NSX range.

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Parameter Value / Description Product Line / Frame Size Masterpact NSX250 Rated Current (In) 250 A (Fully adjustable via the installed electronic trip unit). Number of Poles 4 (L1, L2, L3, N) Breaking Capacity [Must be Specified] – N (~50 kA), S (~70 kA), H (~100 kA), L (~150 kA) Icu at 415V AC. Rated Ultimate Breaking Capacity (Icu) Depends on selected rating (see above). Rated Operational Voltage (Ue) Up to 690 V AC Trip Unit (Must be Specified) Electronic Micrologic Only. Comprehensive range: • Micrologic 2.2: Basic protection (LSI) with display. • Micrologic 5.2/6.2: Adds ground fault (G) protection. • Micrologic 5.2E/6.2E/7.0A: Adds advanced measurement & communication. Communication Native in Micrologic “E” and “A” series. Supports Ethernet, Modbus TCP for integration into EcoStruxure Power. Standard IEC 60947-2 Mounting Withdrawable (standard) or Fixed. Neutral Configuration Usually 4P4D (all 4 poles protected) or 4P3D (neutral switched only). Width (Withdrawable 4P) Approx. 220 mm