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NSX250H

The Schneider Electric ComPacT NSX250H Molded Case Circuit Breaker (MCCB) is a low‑voltage protective device designed for industrial and commercial electrical distribution systems. It provides reliable protection against overloads, short circuits, and other electrical faults. The NSX250H series is part of Schneider Electric’s ComPacT NSX new generation architecture and is suitable for use as a main or feeder circuit breaker. It can be configured with various trip units (thermal‑magnetic or electronic) to match specific protection and coordination requirements, and is compliant with international safety and performance standards.

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Technical Parameters Parameter Specification Product Name Schneider Electric ComPacT NSX250H MCCB Device Type Molded Case Circuit Breaker Series / Range ComPacT NSX new generation Rated Current (In) 250 A at 40 °C (typical frame rating) Poles 3P (three poles) or 4P (with neutral version available) Rated Operational Voltage (Ue) 690 V AC, 50/60 Hz Rated Insulation Voltage (Ui) 800 V AC Rated Impulse Withstand Voltage (Uimp) 8 kV Network Type AC power distribution Utilisation Category Category A (IEC/EN 60947‑2) Ultimate Short‑Circuit Breaking Capacity (Icu) 70 kA @ 380/415 V AC Other Icu Ratings Up to 100 kA @ 220/240 V AC; 65 kA @ 440 V AC; 50 kA @ 500 V AC; 35 kA @ 525 V AC; 10 kA @ 660/690 V AC Breaking Capacity Code H (70 kA @ 415 V AC) Trip Unit Options Thermal‑magnetic (e.g., TMD), Electronic (e.g., Micrologic) Trip Unit Protection Functions Overload (Long‑time), Short‑time/Instantaneous (varies with trip unit) Control / Operation Manual toggle handle or optional motor drive Degree of Protection IP40 Connection Type Screw connection for main circuit Mounting Style Fixed panel mounting Suitable for Isolation Yes, IEC/EN 60947‑2 compliant Typical Applications Main and feeder protection in industrial/commercial electrical distribution