FN258P-55-07

Overview

The FN258P-55-07 is a three-phase EMC/RFI power line filter manufactured by TE Connectivity / Schaffner. It features a chassis mount design with wire terminations for robust industrial integration. The unit supports a voltage rating of 480 VAC and handles a continuous current of 55 A. Operating within a frequency range of 0 Hz to 60 Hz, it maintains a leakage current of 3 mA. Physical dimensions are 300 mm in length, 80 mm in width, and 185 mm in height, weighing approximately 3 kg. The component complies with UL, CSA, and IEC/EN standards and functions reliably between -25°C and +100°C.

Feature Summary

• Provides effective electromagnetic interference suppression for three-phase power systems
• Engineered for secure chassis mounting with pre-attached wire leads
• Complies with major international safety and regulatory certifications

Applications

• Industrial machinery power conditioning
• Three-phase motor drive protection
• Heavy-duty manufacturing equipment filtering

Procurement Notes

Verify the specific suffix designation carefully, as variants such as FN258-55-07 exist with identical electrical ratings but potentially different terminal configurations or packaging. Confirm availability status, as this model may be subject to discontinuation notices. Ensure the wire termination style matches the installation requirements before procurement.

Selection Notes

Select this filter when a 55 A capacity is required for 480 VAC three-phase applications. Verify that the chassis mount form factor fits the enclosure constraints. Consider the leakage current specification relative to sensitive downstream equipment. Ensure the operating temperature range aligns with the environmental conditions of the deployment site.

Part Context

This component belongs to the FN 258 series of power line filters from Schaffner. The series is designed for high-current industrial environments requiring reliable EMI/RFI attenuation. Similar models in the lineup include higher current variants like the FN258-250-07, which share the same chassis mount architecture but differ significantly in amperage and physical size.

Replacement Considerations

Public documentation indicates the FN3288-230-40-C26-R65 as a potential replacement for related discontinued models in the FN258 series. Verify compatibility thoroughly, as direct substitution requires matching current ratings, voltage limits, and physical mounting dimensions.