FN3025HL-20-71

Overview

The Schaffner FN3025HL-20-71 is a three-phase EMC/RFI power line filter designed for chassis mounting. It features a rated current of 20 A and operates at voltages up to 520 VAC within the 0 Hz to 60 Hz frequency range. The component utilizes ring terminal connections for both input and output circuits, ensuring secure electrical interfaces. Constructed with a combination of plastic housing and metal grounding plates, it balances mechanical durability with effective electromagnetic interference suppression.

Feature Summary

• Combines IEC inlet, grid filter, and fuse functions in a compact form factor
• Utilizes metal grounding plates to enhance EMC performance without increasing size
• Offers high attenuation capabilities for general-purpose filtering requirements

Applications

• Industrial equipment requiring EMI suppression
• Commercial machinery needing stable electrical operation
• Communication devices demanding improved electromagnetic compatibility

Procurement Notes

Verify that the specific HL suffix and 71 designation match the required ring terminal configuration and chassis mount style. Confirm the 20 A rating aligns with the system's continuous load requirements. Ensure the 520 VAC voltage rating exceeds the maximum operating voltage of the application circuit to maintain safety compliance and filter integrity during installation.

Selection Notes

Select this model when chassis mounting is preferred over DIN-rail installation, as the FN3025 variant differs from the DIN-rail compatible FN3026. Consider the 20 A current capacity against peak and continuous loads. Evaluate the need for integrated safety acceptances and high attenuation performance typical of the FN9280/9290 associated product lines if stricter standards apply.

Part Context

This component belongs to the FN3025 series of single-phase and three-phase filters from Schaffner EMC Inc. The series provides cost-effective solutions for general-purpose filtering. The FN3025HL-20-71 specifically represents the three-phase variant with high leakage current handling capabilities, distinct from the lower current or different mounting options available in the broader family.

Replacement Considerations

The FN3026 series serves as the DIN-rail mounting alternative within the same functional family. Verify pinout compatibility and physical dimensions before substituting with other three-phase filters from different manufacturers, as attenuation curves and mounting styles may differ significantly.