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What is IEC 61000-6-4?

IEC Standards

What is IEC 61000-6-4?

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Editorial Team - EMC Directory

Apr 17, 2023

IEC 61000-6-4 is an EMC emission standard for equipment in industrial environments that specifies the EMC emission requirements for electrical and electronic equipment intended for use in industrial environments. This generic EMC emission standard is to be used if no applicable product or product family EMC emission standard is available. 

This EMC emission measurement standard specifies the EMI emission limit for equipment, emission test measurement procedures, measurement methods, equipment used, the measurement set-up, and other related details for emission measurement tests. This standard ensures that the electrical and electronic products used in industrial environments do not emit more than the EMI emission limit specified in this standard and do not interfere with other devices or systems in the same environment.

This standard is applicable to equipment/apparatus intended to be connected to a power network supplied from a high or medium-voltage transformer dedicated to providing electrical power to a manufacturing plant or a similar plant and intended to operate in or in proximity to industrial locations/areas, as described below. This standard also applies to battery-operated apparatus intended for use in industrial locations/areas. This standard does not apply to equipment that falls within the scope of the IEC 61000-6-3 standard. 

The environments encompassed by the IEC61000-6-4 document cover both indoor and outdoor locations. In addition, the industrial locations are characterized by the existence of one or more of the following examples:

  • Industrial, scientific and medical (ISM)1)) apparatus
  • Frequently switched heavy inductive or capacitive loads 
  • High currents and associated magnetic fields. 

This document covers the emission requirements for electrical and electronic equipment used in industrial areas in the frequency range of 9 kHz to 400 GHz. No need to perform measurements at frequencies where no requirement is specified. This standard did not include all disturbance phenomena for testing purposes. But, it only included the disturbance phenomena considered relevant for the equipment intended to operate within the environments. 

Currently, the third edition (published in 2018) of this standard is available and valid. The third edition of the document supersedes the second edition, which was published in 2006, and its 2010 Amendment 1. This third edition features significant technical changes from the previous edition, which are listed below.

  1. Specifies possible future requirements on DC ports;
  2. Specifies possible future radiated polarity-specific emission limits within a FAR;
  3. Includes the definition of which average detector is used for emission measurements at frequencies above 1GHz and that results using a peak detector are acceptable for all measurements;
  4. Includes the definition of different EUT test arrangements.

NOTE 1:  This standard does not cover safety considerations. 

NOTE 2: Disturbances generated due to fault conditions of equipment are not covered by this document.


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