FN3271H-250-99

Overview

The Schaffner FN3271H-250-99 is a three-phase EMC/RFI line filter designed for high-current industrial applications. It supports a rated current of 250 A and operates at voltages up to 520 VAC with a frequency of 60 Hz. The unit features chassis mounting and utilizes busbar input and output terminations. Key electrical parameters include a leakage current of 6.9 mA. The compact design minimizes installation space requirements while maintaining robust performance in demanding environments.

Feature Summary

• Compact and lightweight construction reduces required installation space within enclosures
• Busbar input and output connections facilitate secure high-current interfacing
• Chassis mounting style ensures stable physical integration
• Designed for efficient installation using standard manual or automated tools

Applications

• Industrial power distribution systems requiring EMI mitigation
• High-current AC/DC equipment interfacing
• Delta-connected three-phase network filtering
• Space-constrained cabinet installations

Procurement Notes

Verify the specific part number FN3271H-250-99 against official Schaffner or TE Connectivity documentation to confirm compatibility with your system's voltage, current, and termination requirements. Ensure that the busbar termination style matches your existing infrastructure. Cross-reference datasheets for thermal management needs, as high-current filters generate heat. Confirm regulatory compliance status if required for your specific region or industry standard before finalizing procurement.

Selection Notes

Select this component when a three-phase filter is needed for currents up to 250 A at 520 VAC. The busbar termination is critical for low-inductance, high-current connections compared to screw terminals. Consider the chassis mount requirement for mechanical stability. Evaluate the leakage current specification against safety grounding limits. This model is suitable where compactness and high current capacity are prioritized over DIN rail flexibility.

Part Context

This component belongs to the Schaffner FN3271 series, which focuses on compact, high-performance EMC solutions for three-phase applications. The series is characterized by its ability to handle significant current loads while maintaining a small footprint. It complements other Schaffner filters like the FN3270 series but distinguishes itself through busbar connectivity and higher current ratings, targeting heavy-duty industrial power electronics.

Replacement Considerations

Direct substitutes may include other Schaffner FN3271 variants with different current ratings, such as FN3271H-400-99, provided the electrical specifications align with the application. Verify that any replacement maintains the same busbar termination style and chassis mounting dimensions to ensure mechanical compatibility without redesigning the enclosure.