FN256-120-28

Overview

The Schaffner FN256-120-28 is a three-phase and neutral power line filter designed for chassis mounting. It belongs to the FN256 series, which provides high attenuation performance for electromagnetic interference (EMI) suppression in industrial applications. The unit is rated for a current of 120A and integrates safety terminal blocks for secure connection. This component serves as a robust solution for general-purpose filtering requirements where compact form factors and reliable noise reduction are essential.

Feature Summary

• Integrates three-phase and neutral filtering capabilities within a single chassis-mount module
• Provides high attenuation performance for effective EMI/EMC noise suppression
• Includes built-in safety terminal blocks for secure electrical connections

Applications

• Industrial machinery requiring three-phase power conditioning
• Medical equipment needing strict EMC compliance
• Automotive manufacturing systems with high current demands

Procurement Notes

Verify the specific suffix code against official datasheets to confirm exact pinout and terminal configuration. Confirm that the 120A rating aligns with your system's continuous load requirements. Check for RoHS compliance status if required by your region. Ensure chassis mounting dimensions match your enclosure design before procurement.

Selection Notes

Select this model when a combined three-phase and neutral filter is required for high-current applications. Compare attenuation curves against your specific noise spectrum needs. Consider the chassis mount style for integration into existing control panels. Verify that the physical footprint fits within the designated space constraints of your assembly.

Part Context

This component is part of the Schaffner FN256 series, known for combining IEC inlets, mains filtering, and fuses in a small form factor. The series is designed for general-purpose filtering requirements across various industries. It represents a cost-effective solution for standard EMC/EMI challenges without compromising on safety or performance standards.

Replacement Considerations

The FN3256H-120-35 is listed as a potential replacement option. Verify compatibility regarding current ratings, phase configuration, and mounting styles before substitution. Ensure the alternative meets all original safety and regulatory certifications.