EM Test AIF 503N – Series

3-Phase flicker impedances up to 75A

EMTest Three-Phase flicker impedances up to 75A

  • Impedances values as per IEC/EN 61000-3-3 ; IEC/EN 61000-3-11
  • Non-saturable air coil inductors
  • Line voltage 3 x 400V
  • Line current up to 75A per phase (depending on model)
  • Automatic overcurrent protection
  • Status indication by LED
  • Remote-controlled by DPA 503N

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3-Phase flicker impedances up to 75A

The EM Test AIF 503N-series unifies the required impedance values for two applications (except for the AIF 503N16 model). It offers a flicker impedance with the values in accordance with IEC 60725 for flicker measurements as per IEC/EN 61000-3-3. It also includes a second impedance used for flicker measurements on DUTs with a rated current above 16A which are intended to be connected to a public low-voltage distribution system with a service current of more than 100A.
The inductors used are non-saturable air coils and are manually matched to the specified value.

The AIF 503N-series is used along with the DPA503N for single phase as well as for three phase measurements. The AIF 503N-series is fully remote controlled by Compliance Test Studio 23 software. LED indicators on the front panel show the actual mode of use. The AIF 503N32/-N63/-N75 are delivered in a rack on wheels there is space to house the DPA503N for best user convenience.

Compliance Test Studio 23 – the control and analysing software for harmonics and flicker
Compliance Test Studio 23 (CTS 23) is the software tool needed for the operation of the harmonics and flicker analysing system. It offers all features to control the DPA 503N and AIF 503N, to upload the recorded measuring data and for the classification and analysis. It includes  analysis as per the latest standards as well as procedures following the former standard requirements. An easy Fail/Pass function allows fast analysis while detailed data is available for extended analysis and EUT evaluation purposes. CTS 23 offers a powerful documentation capability with direct export to Word, PDF and other file formats.


  • EN 61000-3-11
  • EN 61000-3-3
  • IEC 60725
  • IEC 61000-3-11
  • IEC 61000-3-3
  • JIS C 61000-3-2

AIF 503N series