EMI/ RFI Filter

What is an EMI Filter?

An EMI filter, or electromagnetic interference filter, is an electronic passive device used to suppress conducted interference present on a signal or power line. EMI filters are used to suppress interference generated by the device, or by other equipment, to protect a device from electromagnetic interference signals present in the environment. Most EMI filters consist of components that suppress differential and common mode interference.

To protect and optimize equipment, Enerdoor EMI/ RFI filters provide solutions in three product categories: single-phase, three-phase, and three-phase plus neutral filters.

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Types of EMI Filters

Enerdoor single-phase filter series offers a current range from 1 to 100A with nominal voltage up to 690 Vac. These filters guarantee high attenuation with compact mechanical dimensions.  Available with various connections such as: IEC plugs, fastons, terminal blocks, cables, and screws. Additional DIN rail mounting provides fast and easy installation into the enclosure.  For all models, a dedicated low leakage current solution is available for medical applications.

Enerdoor three-phase filter series offers a current range from 1 to 3000A with nominal voltage up to 690 Vac. This series is one of the largest and most complete for solutions in the industrial automation industry. These filters provide high attenuation in a compact case with low leakage currents and are suitable for several industries.  

Available with terminal block, cable, screw and bus bar connections and with finger safe protection for screw and bus bar options.  DIN rail mounting provides fast and easy installation into the enclosure.  Enerdoor offers solutions in traditional TN and TNS networks and in specific applications such as IT power line configurations. Customized voltage, current, connection, and attenuation solutions are available to satisfy various application needs.

Enerdoor three-phase plus neutral filter series offers a current range from 1 to 2000A with nominal voltages up to 600 Vac. This series provides high attenuation in a compact case with low leakage current and is suitable for several industries.  Available with terminal block, cable, screw and bus bar connections and with finger safe protection for screw and bus bar options.  DIN rail mounting provides fast and easy installation into the enclosure.  Customized voltage, current, connection, and attenuation solutions are available to satisfy various application needs.

 Applications for EMI Filters:

Typical EMI filter applications include:

  • Machine tools
  • Packaging equipment
  • Industrial automation
  • Renewable energy
  • Filtration systems
  • Medical equipment

Single Phase RFI Filter Models

FIN21 Single Phase RFI Filter

Single phase Rated current from 3 - 20A Nominal voltage 250 Vac DIN rail mounting Available for medical applications

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FIN26 Single Phase RFI Filter

Single phase Rated currents from 3 - 20A Nominal voltage 250 Vac High differential and common-mode attenuation DIN rail mounting Available for...

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FIN27 Single Phase RFI Filter

Single phase Rated currents from 3 - 20A Nominal voltage 250 Vac High differential and common-mode attenuation DIN rail mounting Available for...

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Three Phase EMI Filter Models

FIN1351 Three Phase Filter

Three phase Rated currents from 6 - 16A Nominal voltage 480 Vac Very compact housing DIN rail mounting

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FIN538 Three Phase EMI Filter

Three phase Rated currents from 3 - 30A Nominal voltage 480 Vac High differential and common mode attenuation DIN rail mounting

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FIN538S Three Phase EMI Filter

Three phase Rated current from 3 - 180A Nominal voltage 600 Vac High differential and common mode attenuation

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Three Phase Plus Neutral

FIN15 Three Phase Plus Neutral Filter

Three phase plus neutral Rated current from 3 - 20A Nominal voltage 480 Vac Compact case DIN rail mounting

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FIN1240 Three Phase Plus Neutral Filter

Three phase plus neutral Rated current from 5 - 2000A Nominal voltage 480 Vac Very high differential and common mode attenuation High performance...

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FIN1740 Three Phase Plus Neutral Filter

Three phase plus neutral Rated current from 3 - 200A Nominal voltage 600 Vac High differential and common-mode attenuation

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