SCHNEIDER ELECTRIC Compact NSX250F LV431403

Schneider Electric Compact NSX250F Basic Frame (LV431403) Description This is a Schneider Electric Compact NSX250F, a 3-pole basic frame for a Moulded Case Circuit Breaker (MCCB). This unit, part number LV431403, is supplied without a trip unit, providing the flexibility to install a thermal-magnetic or electronic trip unit tailored to your specific application needs. It serves as a robust foundation for circuit protection in industrial and commercial electrical distribution systems. Specifications Manufacturer: Schneider Electric Series: Compact NSX Model: NSX250F Part Number: LV431403 Type: Basic Frame for MCCB Number of Poles: 3 Frame Ampere Rating (In): 250 A Rated Insulation Voltage (Ui): 800 V Rated Impulse Withstand Voltage (Uimp): 8 kV Breaking Capacity (Icu): 36 kA at 380/415 V AC 50/60 Hz Label Info Compliance: IEC/EN 60947-2 Category: A Application The LV431403 is ideal for building the core of a protective device for motors, generators, and distribution feeders. Its modularity allows for use in a wide range of low-voltage applications, from switchboards to individual machine protection. Country of Origin Made in Poland. CO2 Impact By purchasing this reused component, you are helping to avoid approximately 80.0 kg of CO2 emissions associated with the production of a new one. This choice supports a circular economy and reduces industrial waste. Availability This item is in stock and ready for immediate dispatch. Order now from profideals for expert support and fast delivery. FAQ What type of trip unit is compatible with this LV431403 frame?This frame is compatible with Schneider Electric Micrologic 2.2, 5.2, and 6.2 electronic trip units, as well as TM-D and TM-G thermal-magnetic trip units designed for the NSX250 series. What is the difference between the ‘F’ and ‘N’ ratings in the NSX250 series?The letter denotes the breaking capacity (Icu) at 415VAC. The ‘F’ rating, as on this model, signifies a 36kA capacity. The ‘N’ rating indicates a higher capacity of 50kA. Can this breaker frame be used in a DC application?Yes, the Compact NSX frames can be used for DC circuits when equipped with a suitable DC-rated trip unit and wired correctly (typically with poles in series). Always consult the official Schneider Electric technical documentation for specific voltage and current deratings for DC applications. profideals is not an authorized distributor, reseller, or representative of the products featured on this website. All product names, trademarks, brands, and logos used on this site are the property of their respective owners. Last Update: Friday, March 13, 2026