EM Test Coupling NX7 bsr-3-480-32 - Rent 3-Phase 32Amp CDN

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EM Test 3-Phase Surge & EFT CDN:

  • Automatic Coupler for EM Test NX5/NX7 Series 
  • 3-Phase CDM Max 480 Volts 32 Amps AC 
  • Compliant Coupling to IEC 61000-4-4/-5/12
  • Automatic selection of Surge impedance
  • Current ISO 17025 Cal & 2 Days Free Transit Time

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Coupling NX7 Related Equipment



The three-phase coupling/decoupling networks of the coupling NX series are used to couple EFT/Burst-, Surge- and Ring wave pulses on DC-lines or to three-phase (4-wire or 5-wire) mains supply systems for voltages up to 1,000 VDC / 3 x 690 VAC. This includes the more and more common testing of inverters used in the area of renewable energies (e.g. photovoltaic systems, wind power stations, electric cars).

Full compliance over a wide range of EUT current, within 16A , 32 A, 63 A, 125 A and 200 A settings. Higher current ratings on request.


The coupling NX-series coupling/decoupling networks are built fully compliant to the standard requirements of EN/IEC 61000-4-4, EN/IEC 61000-4-5 and EN/IEC 61000-4-12. Residual voltage levels are carefully considered as well as the value of the decoupling inductors in order to meet the requirements with regard to voltage drop at the rated current of each type of CDN.

Being fully controlled by the related generators, couplings of the coupling NX are set automatically as selected for the test (either by manual operation or via software). When performing surge tests the generators will automatically set the required source impedance depending on the standard and the coupling mode.

Models are available with multiple current ranges with waveshape specification that are fully compliant to IEC 61000-4-5. in each selectable EUT current range. Offering the advantage that nearly all EUT's can be tested with just one CDN!

Data SheetUser Manual


Common Standards

EN/IEC 61000-4-4, EN/IEC 61000-4-5, EN/IEC 61000-4-12

Other optional CDN’s available 

  AC/DC Voltage             

3 x 480 VAC (P-P), single or 3 phase

  AC/DC Current

32 A  continuous, Max 50A for 10 min.

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