EM Test CWS 500N4

Simulator for conducted, common-mode disturbances, as per IEC 61000-4-16, IEC 61000-4-19 Annex C, 0Hz (DC) to 165kHz

  • Most compact equipment for common-mode disturbances as per IEC 61000-4-16
  • Built-in LF signal generator and LF amplifier
  • Sweep mode capability 10Hz to 165kHz
  • Built-in rectifier module for DC testing
  • Option for Electricity Meter testing acc IEC 61000-4-19 Annex C
  • Built-in voltage meter (rms values)
  • Test capabilities for DC, 16 2/3Hz, 50Hz and 60Hz in continuous mode and short term mode
  • USB-Interface
  • Built-in semiconductor power switch

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CWS 500N4 – Testing for immunity to conducted, common-mode disturbances

The CWS 500N4 is the state-of-the-art solution in a compact single-box design to test for immunity to conducted, common mode disturbances in the frequency range 0Hz (DC) to 165kHz. Such test requirements are specified in IEC 61000-4-16 and cover continuous mode testing as well as short term testing with DC, 16 2/3Hz, 50Hz and 60Hz with 4 test levels each plus a sweep mode from 10Hz to 165kHz.
Additionally, the CWS 500N4 can be used for testing electricity metering equipment as per prTR 50579 and Draft standard IEC 61000-4-19, Annex C.
  • EN 61000-4-16
  • IEC 60255-22-7
  • IEC 60255-26
  • IEC 60533
  • IEC 61000-4-16
  • IEC 61000-4-19, Annex C
  • IEC 61326
  • IEC 61543
  • IEC 61850-3
  • prTR 50579

Conducted common mode testing out of one single box – Easy, fast and reliable

The CWS 500N4 consists of all the necessary parts to perform full-compliant tests as per IEC 61000-4-16 including the signal generator, the LF amplifier, a DC rectifier module, a semiconductor power switch and the rms measurement of voltage and current.

The CWS 500N4 is able to generate all continuous mode test levels up to 30V (DC, 16 2/3Hz, 50Hz and 60Hz) and the frequency sweep 15Hz to 150kHz without any additional external voltage source.
In order to perform the short-term mode tests up to 300V (DC, 50Hz or 60Hz, depending on the mains line frequency) the optional MV 2606N2.2 is required.
If tests need to be done with 16 2/3Hz or at frequencies other than the mains line frequency the optional programmable AC voltage source ACS 500N2.2 is needed.

For remote control via icd.control software both a GPIB and USB interface are available. icd.control software supports the various test routines, can automatically generate a test report including all test data and offers multiple interruption functions.
Manually operated the user is offered the Quick Start test routine for the easy and efficient testing of specific test points without software.

icd.control – The software that makes your CWS 500N4 a complete LF test system

Software CWS 500N4
icd.control supports testing of immunity to conducted, common mode disturbances from 0Hz to 150kHz as per IEC 61000-4-16. The standards library makes testing of the various test levels specified for the different test modes easy, efficent and reliable. The test report includes all settings and test results.

CN 16-L2/L4

Coupling Network for 2 or 4 line coupling (0 – 330V ac/dc), max. 40W

CN 16-L3

Coupling Network for 3 line coupling (0 – 330V ac/dc), max. 40W

CN 16-L3/690V

Coupling network for ac mains supply lines 3x690V (p-p) (L1, L2, L3)

CN 16-L4/690V

Coupling network for ac mains supply lines 3x690V (p-p) (L1, L2, L3, N)

CN 16-L8

Coupling Network for 8 line coupling (0-330V ac/dc), max. 40W

CDN 16-L2

Coupling/decoupling network for two supply lines, 230V (p-n), 16A with built-in isolation transformer, 6HU

CDN 16-L4/400V

Coupling/decoupling network 3 phase (3L+N) coupling, 3x400V/16A with isolation transformer for decoupling, includes minirack 25HE that houses CWS 500N4 also

CDN 16-T2

Coupling/decoupling Network for balanced pair (2 telecom lines) 0 – 60V dc / 2 A

CN 60255-22-7

Coupling Network acc. IEC 60255-22-7 fig. 2,3&4 – 4 lines cm & dm


Option for testing Electricity meters as per IEC 61000-4-19, Annex C, including multimeter for current measuring, Shunt resistor 1ohm and 100ohm (SH ELM), additional connection cables


Retrofitting of Option ELM for existing CWS 500N4 including Option ELM Set, upgrade and calibration of CWS 500N4
Note: additional upgrades could be required for older models!!

ACS 500N2.3

AC/DC Voltage source 2kVA, 330V/6A   (1 phase)  w galvanic isolation, mains supply 230V/16A, 50/60Hz

MV 2606N2.2

Motorized Variac 0 – 330V / 6 A 1.8 kVA w. galvanic isolation, mains supply 115V or 230V, 50/60Hz

Continuous wave simulation from DC to 1GHz

Continuous wave simulation over 9 decades! The CWS 500N family not only covers the frequency range mostly required for industrial test applications based on IEC 61000-4-6 but EM TEST also offers dedicated solutions for the low frequency range as well as for BCI (Bulk Current Injection), TEM cell or Stripline applications in the automotive, aerospace and military area.
The CWS 500N4 covers the requirements as per IEC 61000-4-16 for low frequency test applications required for testing electrical and electronic equipment with the application of common mode disturbances to power supply, control, signal and communication ports.

CWS 500N4 Datasheet