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The FN3311-600-99-C28-R55 is a three-phase busbar EMC/EMI power line filter manufactured by Schaffner. It features a single-stage configuration designed for chassis mounting with screw termination. The unit is rated for a maximum current of 600 A and operates at frequencies up to 60 Hz. Voltage ratings include 520 VAC phase-to-phase and 300 VAC phase-to-neutral. The component utilizes a 3.3 µF capacitance value and complies with IEC/EN 60939, UL 1283, and CSA standards.
Verify the specific suffix codes against official datasheets to ensure correct voltage and current ratings. Confirm compliance requirements such as UL or CE match project specifications. Check for recent Product Change Notifications regarding packaging or origin. Ensure physical dimensions align with available chassis space before ordering.
Select this model when high continuous current handling is required alongside effective EMI suppression. Compare total system impedance requirements against the filter's attenuation characteristics. Consider thermal management needs given the high current rating. Verify that the busbar termination style matches existing panel infrastructure.
This component belongs to the FN3311 series, which provides compact three-phase filtering solutions. The series is engineered for high-power environments where space constraints exist. It serves as a critical interface between noisy power sources and sensitive downstream electronics.
Direct substitutes within the same series may offer different current ratings but require verification of terminal compatibility. Cross-brand replacements must match voltage, current, and physical mounting constraints precisely.