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The Schaffner FN3280H-120-35-R69 is a three-phase and neutral EMC line filter rated for 120 A current and 520 VAC. Designed for chassis mounting, it utilizes terminal block connections for both input and output. The unit supports WYE configuration with four wires plus ground. It operates at 60 Hz frequency and provides essential electromagnetic interference suppression for industrial machinery compliance.
Verify the specific suffix R69 against official datasheets to confirm terminal block orientation and mounting hole patterns. Ensure the 520VAC rating aligns with the target network voltage. Confirm that the 120A continuous current capacity meets the load requirements without derating due to ambient temperature conditions.
Select this model when high current handling up to 120 A is required for three-phase systems. The WYE configuration with neutral line support distinguishes it from standard three-wire filters. Chassis mount style is suitable for panel integration where space efficiency and thermal dissipation are prioritized over plug-in convenience.
This component belongs to the Schaffner FN3280 series of power line filters. The series is engineered for demanding industrial applications, offering reliable noise attenuation across various power frequencies. The H variant typically denotes specific performance enhancements or form factors within the broader product family.
FN3280H-120-35 is a base part number reference. Verify compatibility with FN3280H-120-35-R69 specifications before substitution. Cross-reference with other Schaffner three-phase chassis filters if exact pinouts differ.