FN3287-20-33-C26-R65

Overview

The Schaffner FN3287-20-33-C26-R65 is a three-phase power line filter designed for industrial applications. It features a rated current of 20A and supports voltages up to 480V AC. The unit provides attenuation across frequencies from 150kHz to 30MHz, meeting stringent electromagnetic interference standards including EN 55011 and CISPR 11 Class B requirements. Constructed with robust internal components, it ensures reliable performance in demanding environments while maintaining low leakage current characteristics suitable for sensitive equipment protection.

Feature Summary

• Provides effective common-mode noise suppression for three-phase power lines
• Complies with international EMC emission standards for industrial equipment
• Designed for secure mounting using standard panel installation methods

Applications

• Industrial automation control systems
• Medical imaging equipment power supplies
• Precision manufacturing machinery

Procurement Notes

Verify the specific ordering suffix matches the required terminal configuration and cable entry type. Confirm that the voltage rating aligns with the local mains supply frequency and amplitude. Ensure the physical dimensions fit the designated enclosure space. Check that the current rating exceeds the maximum load expected during operation. Validate compliance certificates against regional regulatory requirements before final procurement.

Selection Notes

Choose this model when high attenuation is required for broadband noise reduction in three-phase circuits. Consider the thermal derating curve if ambient temperatures exceed standard operating ranges. Evaluate the available clearance height for proper ventilation and safety isolation distances. Assess whether the integrated EMI suppression meets the specific sensitivity levels of downstream electronic loads without compromising system stability.

Part Context

This component belongs to Schaffner's FN3287 series of compact power filters. The series is engineered for space-constrained installations requiring high performance. It utilizes advanced ferrite materials and precision winding techniques to achieve superior noise cancellation. The design prioritizes durability and consistent electrical characteristics over extended operational lifespans in harsh industrial settings.

Replacement Considerations

• FN3287-20-33-C26-R65

FAQ

What is the maximum operating voltage for this filter?

The filter is rated for AC voltages up to 480V.

Does this unit support single-phase operation?

No, this model is specifically designed for three-phase power line applications.