New EN 61000-3-2 – EMC Limits

EN 61000-3-2, “Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions (equipment input current ≤ 16 A per phase),” has just been updated to bring it up-to-date with the new Edition 4.0 for the IEC 61000-3-2.  The document deals with the limitation of harmonic currents injected into the public supply system.   The new 2014 Edition cancels and replaces the previous 2006 Edition with Amendments 1 and 2.

Like it’s source document, the EN 61000-3-2 is applicable to electrical and electronic equipment having an input current up to and including 16 A per phase.  It specifies limits of harmonic components of the input current.  You’ll be testing your equipment to specific limits, with the tests for particular equipment provided in Annex A.

Since the EN 61000-3-2 is identical in content to the IEC 61000-3-2, the changes to the two standards are the same.  Per IEC, these are:

  • clarification of the repeatability and reproducibility of measurements
  • more accurate specification of the general test conditions for information technology equipment
  • the addition of optional test conditions for information technology equipment with external power supplies or battery chargers
  • the addition of a simplified test method for equipment that undergoes minor changes or updates
  • an update of the test conditions for washing machines, for audio amplifiers, arc welding equipment, and vacuum cleaners
  • clarification of the requirements for Class C equipment with active input power ≤ 25 W
  • clarification of the test conditions for lamps
  • the addition of test conditions for high pressure cleaners
  • the reclassification of refrigerators and freezers with variable-speed drives into Class D
  • and the addition of test conditions for refrigerators and freezers.

You’ll find two informative Annexes in the EN adoption that are not part of the source IEC document.  They are Annex ZA, Normative references to international publications with their corresponding European publications and Annex ZZ, Coverage of essential requirements of EU Directives.  The first Annex just gives you the available parallel EN standards for the IEC standards referenced in the text.   And the second provides you with the relationship of this EN 61000-3-2 with the two directives where requirements can be met with the use of this document.

At this juncture, the EN 61000-3-2 2014 Edition has been released as a BS-EN-61000-3-2.  We expect the SIS-EN-61000-3-2 2014 Edition to be issued soon (the Swedish adoption, English language edition).  The DIN-EN-61000-3-2 2014 Edition is still in draft format with publication probably being issued in the German language format only.

You can get your copy of the new EN 61000-3-2 or the source IEC 61000-3-2 standard from Document Center.  Order online at www.document-center.com.  Or contact our staff by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  You’ll have a number of options, both for format and delivery and for payment as well.  Document Center Inc. has been providing standards from our Silicon Valley location since 1982.  Make us your Standards Experts!

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Claudia Bach

Claudia Bach is the President of Document Center Inc. and a world-wide recognized expert on Standards and Standards Distribution. You can connect with her on Google+

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