IEC 61000-4-6 Testing, Setup, Equipment, Procedure

IEC 61000-4-6 Testing, Setup, Equipment, Procedure

IEC 61000-4-6 is a standard for testing electromagnetic disturbances along data and power lines that run to and from your product (DUT = Device Under Test). While intimidating to decipher the 89 pages of edition 5 of EN/IEC 61000-4-6, it's testing techniques are simple and will help flush out other problem areas that arise in EMC testing. Most of our custommers usually call in, rent equipment and contact us with the equipment in hand. Dialing in the test setup, sequence or anything else is usually quickly resolved to get testing underway. Notice:


IEC 61000-4-6 Testing

Most of our customers will simply place the test generator on a bench, ground it and teh inkection device, and be off and rolling. There are diagrams avaialble that specify spacing, insulation, placement of the generator, etc... We have found that in most cases, these aren't detrimental in precompliance measurements when following IEC 61000-4-6. The test standard is long and detailed, covering different test setups, injection methods, procedures and more. The EMC Shop can support this effort with information on your DUT and surrounding auxilary equipment.


Why Test to IEC 61000-4-6

'Cause your boss told you too! Maybe you just got the report from the test lab saying Fail!? Just kidding...


While you've properly shielded your sexy new products electronics in a housing deemed resistanct to electromagnetic fields. With the increasingly crowded world of electronics, your product is likely going to be subjected to electromagnetic fields that are coupled on to power or data lines. Inecting RF noise onto these lines will allow you to test and measure the performance of your DUT.

Test Procedures

  • Size of the EUT
  • Coupling and decoupling devices used on each cable
  • The type of test facility
  • Frequency range of application of the test
  • The rate of sweep frequency, dwell time and frequency steps
  • Description of the EUT exercising method
  • Performance Criteria
  • The recovery time of the EUT if necessary

Materials & Test Equipment

  • Test Generator
  • CDNs, EM Clamp or Current Clamp
  • Decoupling Device
  • Monitor Probe
  • 6dB Attenuator
  • 50 Ohm Terminations
  • Insulation Material
  • Grounding Plane
  • Calibration Kit (Optional)
  • RF Shield Room (Optional)


Injection Method

EN/IEC 61000-4-6 Injection Test Method Selection Chart

Also See - Bulk Current Injection (BCI) Testing

IEC 61000-4-6 Test Setup

EN/IEC 61000-4-6 Test Setup with CDNs






Interconnecting cables (≤ 0,4 m) belonging to the EUT shall remain on the insulating support.


Only one of the CDNs not used for injection shall be terminated with 50 Ω, providing only a single return path. All
843 other CDNs shall be configured as decoupling networks.


Video - IEC 61000-4-6 Calibration Procedure

EN/IEC 61000-4-6 Testing Equipment: