FN258L-75-34

Overview

The FN258L-75-34 is a three-phase EMC/RFI power line filter manufactured by Schaffner. It supports a rated current of 75 A and operates at voltages up to 440 VAC with a frequency range of 50 Hz. The unit features terminal block connections and chassis mounting. Key electrical specifications include a leakage current of 28 mA and an insertion loss characteristic typical for its series. The device is designed for robust industrial environments, ensuring compliance with international safety standards.

Feature Summary

• Provides multi-stage attenuation for electromagnetic interference in three-phase systems
• Features a durable chassis mount design suitable for industrial enclosures
• Utilizes terminal block connections for secure wiring integration

Applications

• Industrial motor drives and inverter systems
• Power distribution units requiring EMI suppression
• Heavy machinery control panels

Procurement Notes

Verify the specific suffix 'L' against official TE Connectivity/Schaffner documentation to confirm mechanical or electrical variations compared to standard FN258 models. Confirm availability status as some variants may be discontinued or subject to supply constraints. Ensure the 440 VAC rating aligns with your system voltage requirements before procurement.

Selection Notes

Select this model when a 75 A three-phase filter is required for 440 VAC applications. Compare leakage current limits against sensitive equipment requirements. Verify that the chassis mount dimensions and terminal block configuration fit the available panel space. Ensure the operating temperature range meets the environmental conditions of the installation site.

Part Context

This component belongs to the FN258 series of power line filters from Schaffner, now part of TE Connectivity. The series is engineered for high-current three-phase applications, offering reliable EMI/RFI suppression. The FN258L variant specifically denotes particular construction or rating details within this established product family used in industrial power conditioning.

Replacement Considerations

Check for direct cross-references in the latest Schaffner replacement guides. Note that the standard FN258-75-34 is listed as discontinued; verify if the 'L' suffix indicates a current production equivalent or a legacy part requiring a different substitute.