RFI Filters Three-Phase

Input filters, also known as mains filters, are electronic components used in electrical or electronic devices to suppress unwanted electromagnetic interference that could enter the device via the mains or other input lines and thus cause unwanted interactions.

These filters also help to ensure that the appliance itself does not emit any interference into the mains supply. This is important in order to be able to comply with the EMC limit values specified in the standards and not to interfere with other devices in the network.

For proper and trouble-free operation!

  • Voltage range: 400 V up to 690 V AC, 50/60 Hz
  • Rated current: 4 A up to 2500 A
  • Three-phase, without Neutral

↓ Jump to 690V AC / IT power networks

400 V – 520 V AC

Produktbild NF-CF

NF-CF

Compact filters for frequency inverters and power drive systems

  • Current ratings from 10 A up to 230 A
  • Very small dimensions (bookstyle)
  • Very good attenuation properties
  • Fingerproof terminals
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-CF_data-sheet.pdf1.85 M
CAD » EMV » NF » 3ph
NF-CF.zip1.99 M

Produktbild NF-DIN4

NF-DIN4

Compact filters for DIN-Rail mounting

  • Current ratings from 5 A up to 32 A
  • High common and differential mode attenuation
  • Compact plastic case style
  • Simple mounting on DIN-Rail
  • Also suitable for residential building installations
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-DIN4_data-sheet.pdf327.92 K
CAD » EMV » NF » 3ph
NF-DIN4.zip732.79 K

Produktbild NF-BFG(-CD/-LL)

NF-BFG(-CD/-LL)

Ultra compact filters, also for DIN-Rail mounting

  • Current ratings from 10 A up to 50 A
  • High differential and common mode attenuation
  • Compact case style
  • Optional DIN-Rail mounting (-CD version)
  • Low leakage current (type LL)
  • Also for residential building installations
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-BFG-CD_NF-BFG-CD-LL_data-sheet.pdf2.33 M
EPA_RFI-filters_NF-BFG_NF-BFG-LL_data-sheet.pdf400.58 K
CAD » EMV » NF » 3ph
NF-BFG.zip3.16 M

Produktbild NF-KC

NF-KC

High performance line filters primarily for electrical drives

  • Current ratings from 7 A up to 180 A
  • Very high insertion loss from 10 kHz up to 30 MHz
  • Small dimensions (bookstyle) and low weight
  • Touch-proof terminals
  • For applications with increased requirements
  • UL approval
File Size
CAD » EMV » NF » 3ph
NF-KC.zip1.10 M

Produktbild NF-KC-LL

NF-KC-LL

Low leakage current line filters

  • Current ratings from 7 A up to 180 A
  • Low leakage current
  • Small dimensions (bookstyle) and low weight
  • Touch-proof terminals
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-KC-LL_data-sheet.pdf963.57 K
CAD » EMV » NF » 3ph
NF-KC-LL.zip1.01 M

Produktbild NF-KC-LKY

NF-KC-LKY

Line filter with PreLEAK® TECHNOLOGY for a safe operation on the residual current device

  • No faulty RCD trippings while switching machines and systems on or off (due to minimal leakage current)
  • No leakage current spikes while connecting and disconnecting the CEE plug
  • Very good attenuation properties
File Size
Brochures » EMC
EPA_NF-KC-LKY_Brochure.pdf2.42 M
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-KC-LKY_data-sheet.pdf825.38 K
CAD » EMV » NF » 3ph
NF-KC-LKY.zip426.33 K

Produktbild NF-MHU

NF-MHU

High Performance filters for electrical drives

  • Current ratings from 6 A up to 180 A
  • Very high symmetrical and asymmetrical attenuation from 150 kHz up to 30 MHz
  • Vertical and horizontal installation
  • Touch-proof terminals
  • For applications with increased requirements
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-MHU_data-sheet.pdf0.98 M
CAD » EMV » NF » 3ph
NF-MHU.zip481.32 K

Produktbild NF-K

NF-K

Compact filters primarily for electrical drives

  • Current ratings from 7 A up to 180 A
  • High symmetrical and asymmetrical attenuation from 150 kHz up to 30 MHz
  • Small dimensions (bookstyle) and low weight
  • Touch-proof terminals
  • UL approval
File Size
CAD » EMV » NF » 3ph
NF-K.zip1.05 M

Produktbild NF-K-FTF/E

NF-K-FTF/E

Compact filters with flexible leads

  • Current ratings from 16 A up to 55 A
  • High symmetrical and asymmetrical attenuation from 150 kHz up to 30 MHz
  • Small dimensions (bookstyle) and low weight
  • Input with touch-proof terminals and output with flexible leads
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-K-FTF_E_data-sheet.pdf6.02 M

Produktbild NF

NF

Universal line filters

  • Current ratings from 8 A up to 180 A
  • High insertion loss from 150 kHz up to 30 MHz
  • Flat case style
  • For applications with increased requirements
  • Touch-proof terminals
  • UL approval (16 A – 50 A)
File Size
CAD » EMV » NF » 3ph
NF.zip3.51 M

Produktbild NF

NF

High current filters

  • Current ratings from 250 A up to 2500 A
  • High insertion loss from 10 kHz up to 30 MHz
  • Compact case style
  • Low leakage current
  • Connection via copper busbars
File Size
CAD » EMV » NF » 3ph
NF.zip3.51 M

Produktbild NF-STIE

NF-STIE

High current filters

  • Nominal currents from 330 A up to 1290 A
  • High insertion loss from 10 kHz up to 30 MHz
  • Compact case style
  • Connection via copper busbars
  • Conform to European Standard EN 60939
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-STIE_data-sheet.pdf2.75 M
CAD » EMV » NF » 3ph
NF-STIE.zip376.53 K

Produktbild NF-R, NF-R-CBL

NF-R, NF-R-CBL

Multi-stage filters for industrial application

  • Current ratings from 7 A up to 250 A
  • High insertion loss from 10 kHz up to 30 MHz
  • For applications with increased requirements
  • Small dimensions (bookstyle), vertical and horizontal installation
  • Touch-proof terminals
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-R-HV_data-sheet.pdf0.99 M
EPA_RFI-filters_NF-R_NF-R-CBL_data-sheet.pdf3.58 M
CAD » EMV » NF » 3ph
NF-R.zip1.24 M

Produktbild NF-FSG

NF-FSG

Compact filters with flexible leads

  • Current ratings from 4 A up to 24 A
  • High attenuation from 150 kHz up to 30 MHz
  • Low leakage current
  • Compact packaging and low weight
  • Touch-proof input terminals, output with flexes
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-FSG_data-sheet.pdf3.34 M
CAD » EMV » NF » 3ph
NF-FSG.zip60.64 K

Produktbild NF-T

NF-T

Compact filters for regenerative use

  • Current ratings from 35 A up to 230 A
  • For applications with regeneration of power*
  • High insertion loss from 10 kHz up to 30 MHz
  • Small dimensions (bookstyle)
  • Touch-proof terminals
  • UL approval
  • * For regenerative use an additional line reactor is required.
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-T_data-sheet.pdf776.02 K
CAD » EMV » NF » 3ph
NF-T.zip125.11 K

Produktbild NF-FTK

NF-FTK

Mains RFI filters

  • Current ratings from 12 A up to 230 A
  • High attenuation from 150 kHz up to 30 MHz
  • Compact case style
  • Touch-proof terminals
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-FTK_data-sheet.pdf915.98 K
CAD » EMV » NF » 3ph
NF-FTK.zip1.28 M

690V AC / IT power networks

Produktbild NF-K-IT

NF-K-IT

Compact filters for IT-and 690 V power networks

  • Current ratings from 7 A up to 180 A
  • High symmetrical attenuation
  • Increased dielectric withstanding voltage
  • Least low leakage current
  • Small dimensions (book style)
  • Touch-proof terminals
  • UL approval (up to 600 V)
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-K-IT_data-sheet.pdf3.04 M
CAD » EMV » NF » 3ph
NF-K-IT.zip1.01 M

Produktbild NF-R-HV

NF-R-HV

Multi-stage filters for 690 V industrial applications

  • Current ratings from 7 A up to 250 A
  • High symmetrical attenuation
  • Higher rated voltage
  • Small dimensions (book style), vertical and horizontal installation
  • Touch-proof terminals
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-R-HV_data-sheet.pdf0.99 M

Produktbild NF-HV

NF-HV

IT-/690 V high current filters

  • Current ratings from 250 A up to 1600 A
  • Higher rated voltage
  • Compact case style
  • Connection via copper busbars
File Size
Data_Sheets » EMC » Three_Phase_RFI_Filters
EPA_RFI-filters_NF-HV_data-sheet.pdf939.69 K
CAD » EMV » NF » 3ph
NF-HV.zip1.07 M