FN3258-7-45

Overview

The Schaffner FN3258-7-45 is a three-phase ultra-compact EMC/RFI power line filter designed for chassis mounting. It supports a rated current of 7 A and operates at voltages up to 440 VAC with a frequency range of 50 Hz. The unit features wire termination and exhibits a leakage current of 33 mA. Its physical dimensions are characterized by a compact form factor suitable for space-constrained installations, ensuring effective electromagnetic interference suppression in industrial environments.

Feature Summary

• Ultra-compact design optimized for tight installation spaces
• Three-phase filtering capability for balanced load protection
• Chassis mount construction for secure mechanical integration

Applications

• Motor drive systems requiring EMI suppression
• Industrial control panels with limited enclosure space
• Power conditioning equipment for sensitive electronics

Procurement Notes

Verify the specific termination type required for your application, as datasheets may list strip or wire terminals depending on the exact suffix configuration. Confirm compliance certifications such as UL or CSA if mandated by your regional safety standards. Ensure the operating voltage does not exceed the 440 VAC rating to maintain component integrity and safety margins during deployment.

Selection Notes

Select this model when space constraints prevent the use of standard-sized filters while maintaining three-phase requirements. The 7 A rating suits light to medium industrial loads. Consider the 33 mA leakage current impact on ground fault protection schemes. Verify that the chassis mounting style aligns with your panel layout and thermal management strategy for optimal performance.

Part Context

Part of the FN3258 series, known for high-density filtering solutions. Manufactured by Schaffner EMC Inc., now part of TE Connectivity. This series targets applications demanding minimal footprint without compromising attenuation performance. The model represents a specialized variant within the broader portfolio of power line filters designed for global industrial markets.

Replacement Considerations

FN3258-7-44 is listed as a potential replacement or alternative within the same manufacturer's lineup. Verify dimensional compatibility and electrical ratings before substitution. Ensure the alternative maintains the required three-phase configuration and mounting style to fit existing infrastructure without modification.