FN3311-1000-99-C28-R55

Overview

The FN3311-1000-99-C28-R55 is a three-phase busbar power line filter manufactured by TE Connectivity / Schaffner. It features a chassis mount design with screw termination for secure installation. The unit operates within a frequency range of 0 Hz to 60 Hz and supports a rated voltage of 520 VAC phase-to-phase and 300 VAC phase-to-neutral. It handles a continuous current rating of 1 kA and includes a capacitance value of 3.3 uF. The component complies with UL 1283, CSA, and IEC/EN 60939 standards. Physical dimensions are 225 mm in length, 195 mm in width, and 150 mm in height, with an operating temperature range from -40°C to +100°C.

Feature Summary

• Provides electromagnetic interference suppression for three-phase power systems
• Utilizes a robust chassis mount configuration with screw terminals
• Designed for high-current industrial applications up to 1 kA

Applications

• High-power motor control cabinets
• Industrial power conditioning systems
• Three-phase equipment requiring EMI/RFI filtering

Procurement Notes

Verify the specific suffix codes against official datasheets to ensure correct terminal type and mounting configuration. Confirm that the 1 kA current rating aligns with system requirements. Check for updated compliance certifications such as UKCA or CE if required by local regulations. Ensure mechanical fitment matches the 225x195x150 mm footprint. Validate thermal management capabilities within the specified -40°C to +100°C operating range.

Selection Notes

Select this model when a single-stage, three-phase filter is required for currents up to 1 kA at 520 VAC. The busbar/screw termination style dictates the connection method. Consider the physical size constraints due to the heavy-duty construction. Verify compatibility with existing chassis mounting points. Ensure the leakage current characteristics meet safety standards for the specific application environment.

Part Context

This component belongs to the FN3311 series of compact three-phase high-power filters. The series is designed for demanding industrial environments where significant current handling and effective noise suppression are necessary. It serves as a critical interface between power sources and sensitive loads, ensuring regulatory compliance and operational stability in high-power setups.

Replacement Considerations

Parametric equivalents may exist within the same series. Verify that substitute parts match the 1 kA rating, 520 VAC voltage, and 3.3 uF capacitance. Ensure identical mounting dimensions and terminal types to avoid mechanical modifications.