RFI Filters Three-Phase (with Neutral)

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 AC up to 520 V AC, 50/60 Hz
  • Rated current: 6 A up to 1000 A
  • Three-phase, with neutral

400 V – 520 V AC

Produktbild NF-4-GTR

NF-4-GTR

High performance mains RFI filters

  • Current ratings from 8 A up to 200 A
  • Low leakage current and very high attenuation
  • Compact case style
  • Suitable as mains RFI filter for machinery
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-GTR_data-sheet.pdf1.16 M

Produktbild NF-4-BFG

NF-4-BFG

Ultra compact filters, also for DIN-Rail mounting

  • Current ratings from 10 A up to 50 A
  • High differential and common mode attenuation
  • Very compact case style
  • Suitable for DIN-rail mounting (case style CD)
  • Low leakage current
  • Also suitable for residential building installations
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-BFG-CD_data-sheet.pdf2.39 M
EPA_RFI-filters_NF-4-BFG_data-sheet.pdf2.53 M
CAD » EMV » NF » 3ph+N
NF-4-BFG.zip1.16 M

Produktbild NF-4-FTN

NF-4-FTN

High performance compact filters

  • Current ratings from 8 A up to 160 A
  • High attenuation from 150 kHz to 30 MHz
  • Compact case style
  • Low leakage current
  • High saturation strenght at overcurrent
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-FTN_data-sheet.pdf3.13 M
CAD » EMV » NF » 3ph+N
NF-4-FTN.zip942.90 K

Produktbild NF-4-RHY

NF-4-RHY

Line filters for operation on residual current device

  • Current ratings from 16 A up to 64 A
  • High attenuation from 150 kHz up to 30 MHz
  • Prevents unwanted RCD trippings
  • Low leakage current
  • Compact case style
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-RHY_data-sheet.pdf2.57 M
CAD » EMV » NF » 3ph+N
NF-4-RHY.zip338.70 K

Produktbild NF-K-4

NF-K-4

High performance 2-stage filters

  • Current ratings from 16 A up to 180 A
  • Very high attenuation from 150 kHz up to 30 MHz
  • Small dimensions (bookstyle up to 100 A)
  • Two-stage filter
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-K-4_data-sheet.pdf2.49 M
CAD » EMV » NF » 3ph+N
NF-K-4.zip942.94 K

Produktbild NF-4

NF-4

High Performance Four-Line Filters

  • Current ratings from 6 A up to 1000 A
  • High attenuation from 150 kHz up to 30 MHz
  • Two-stage filters
  • High saturation strength at overcurrent
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4_data-sheet.pdf2.80 M
CAD » EMV » NF » 3ph+N
NF-4_CAD.zip1.45 M

Produktbild NF-4-SD

NF-4-SD

Compact filters for industrial applications

  • Current ratings from 6 A up to 20A
  • Very compact case style
  • For industrial applications
  • UL approval
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-SD_data-sheet.pdf2.51 M
CAD » EMV » NF » 3ph+N
NF-4-SD.zip415.88 K

Produktbild NF-4-FTR

NF-4-FTR

Compact main RFI filters

  • Current ratings from 8 A up to 160 A
  • Low leakage current und high attenuation
  • Compact case style
  • Suitable as mains RFI filter
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-FTR_data-sheet.pdf3.40 M
CAD » EMV » NF » 3ph+N
NF-4-FTR.zip942.08 K

Produktbild NF-4-FSK

NF-4-FSK

Compact filters for industrial applications

  • Current ratings from 16 A up to 100 A
  • High attenuation from 150 kHz up to 30 MHz
  • Compact case style
  • Suitbale for industrial applications
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-FSK_data-sheet.pdf3.22 M
CAD » EMV » NF » 3ph+N
NF-4-FSK.zip355.99 K

Produktbild NF-4-PPR

NF-4-PPR

Universal Main Supply Filters

  • Current ratings from 8 A up to 250 A
  • Low leakage current and high attenuation
  • Flat case style
  • Suitable as mains RFI filter
File Size
Data_Sheets » EMC » Three_Phase_Four_Line_RFI_Filters
EPA_RFI-filters_NF-4-PPR_data-sheet.pdf3.10 M
CAD » EMV » NF » 3ph+N
NF-4-PPR.zip1.45 M