FN3271 EMC-filter for machinery and robotics

24th August 2021

Schaffner Ltd

Kiera Sowery

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Schaffner has extended its FN3270 series to provide more options for machine builders. Building on the strengths of FN3270 filter range the new FN3271 filter is a compact and lightweight filter design requiring minimum mounting space in installations and cabinets.

Fifteen different filter models are available to meet the specific needs and deployment for most industrial applications. These include industrial viable speed electrical power drive systems, motor drives and systems containing frequency inverters and servo drives.

With its enhanced performance the FN3271 offers a solution for EMC challenges, where the impedance at the connection to the noise source is high ( >100Ohm). The internal configuration of the FN3271 is optimised for this application. For applications with low impedances at the noise source the existing FN3270 remains the option of choice.

These new EMC filters provide the attenuation performance required to fulfil EN 61800-3/A11 and the filter performance is guaranteed under full load operating conditions. Solid, touch-safe terminal blocks are fitted to all filter models from 10 to 100A, offering sufficient contacting cross section according to the EN 60204-1 installation standard.

To improve the safely of installations optional transparent protective covers are available for all filters with busbars from 150 to 1,000A. These provide protection to the installer, operator, or inspector by avoiding accidental contact with live conductors. The protective covers can easily be retrofitted even if the filter is already installed and connected.

A datasheet for the FN3271 is available to download here.