FN258-42-33

Overview

The FN258-42-33 is a three-phase EMC/RFI power line filter manufactured by TE Connectivity / Schaffner. It features a chassis mount design with terminal block termination, rated for 480 VAC and 42 A at frequencies from 0 Hz to 60 Hz. The unit has a leakage current of 3 mA and operates within a temperature range of -25°C to +100°C. Physical dimensions are 300 mm in length, 70 mm in width, and 185 mm in height, weighing approximately 3 kg. It holds UL, CSA, and IEC/EN compliance certifications.

Feature Summary

• Provides electromagnetic interference suppression for three-phase power drive systems
• Utilizes safety terminal block connections for secure installation
• Designed for chassis mounting in industrial environments

Applications

• Three-phase power drive systems
• Industrial inverter filtering
• EMC compliance for heavy machinery

Procurement Notes

Verify the exact part number suffix against official TE Connectivity documentation, as variations exist (e.g., HV, L, IT). Confirm availability status, as this specific model may be discontinued or subject to supply restrictions. Ensure replacement components match voltage, current, and dimensional requirements before procurement.

Selection Notes

Select this component when a robust, high-current three-phase filter is required for chassis-mounted applications. Consider the physical footprint and weight constraints during system design. Verify that the 480 VAC rating aligns with the target power infrastructure and that terminal block termination suits the existing wiring scheme.

Part Context

This component belongs to the FN258 series, which offers industry-standard EMC solutions for three-phase inverters and power drive systems. The series provides reliable noise attenuation for industrial equipment requiring strict electromagnetic compatibility standards.

Replacement Considerations

Potential substitutes include FN3288-40-33-C27-R65 or FN258HV-42-33. Verify electrical ratings and mechanical fit before substitution.