IEC/EN 61000-6-4 applies to electrical and electronic apparatus intended for use in industrial environments as described below. This generic EMC emission standard is applicable if no relevant dedicated product or product-family EMC emission standard exists.

IEC 61000-6-4 applies to a apparatus intended to be connected to a power network supplied from a high or medium voltage transformer dedicated to the supply of an installation feeding manufacturing or similar plant, and intended to operate in or in proximity to industrial locations, as described below. This standard applies also to apparatus, which is battery operated and intended to be used in industrial locations.

The environments encompassed by this standard are industrial, both indoor and outdoor. Industrial locations are in addition characterized by the existence of one or more of the following examples:

– Industrial, scientific and medical (ISM))) apparatus

– Heavy inductive or capacitive loads that are frequently switched

– High currents and associated magnetic fields

IEC/EN 61000-6-4 defines the emission test requirements for apparatus defined in the scope in relation to continuous and transient, conducted and radiated disturbances. The emission requirements have been selected so as to ensure that disturbances generated by apparatus operating normally in industrial locations do not exceed a level that could prevent other apparatus from operating as intended. Fault conditions of apparatus are not taken into account. Not all disturbance phenomena have been included for testing purposes in this standard but only those considered as relevant for the equipment covered by this standard. These requirements represent essential electromagnetic compatibility emission requirements. Requirements are specified for each port considered.

Require­ments include both conducted and radiated emissions

Con­ducted emis­sion require­ments for mains ports and telecom­mu­ni­ca­tion ports must be sat­is­fied in fre­quency range 0kHz-30MHz.

Radi­ated emis­sion require­ments must be sat­is­fied in fre­quency rage:

  • 30MHz-1GHz if inter­nal oscil­la­tor fre­quency is up to 108MHz
  • 30MHz-2GHz if inter­nal oscil­la­tor fre­quency is up to 500MHz
  • 30MHz-5GHz if inter­nal oscil­la­tor fre­quency is up to 1GHz
  • 30MHz-6GHz if inter­nal oscil­la­tor fre­quency is higher than 1GHz

If the inter­nal oscil­la­tor fre­quency is not known the mea­sure­ments shall be car­ried out up to 6GHz.
If the inter­nal oscil­la­tor fre­quency or work­ing fre­quency is up to 9kHz the mea­sure­ments shall be made up to 230MHz

Immunity requirements are not covered by this standard and would be included in IEC/EN 61000-6-1.

Safety considerations are not covered by this standard as well. Equipment used in commercial, residential, or light industrial applications may fall under the requirements of the EU Low Voltage Directive 2014/35/EU or the EU Machinery directive, 2006/42/EEC.

Wireless Applications

Electrical and electronic equipment that have wireless capabilities (transmitter-receiver) may have to meet wireless regulations as well as medical device and equipment regulations.  Pre-approved wireless module certification in many cases is not enough to show compliance for devices and equipment for household appliances and similar equipment. D.L.S. can assist in determining the specific requirements needed to meet all U.S., Canada, EU and international regulatory requirements for your equipment. The European Union has established requirements under law for wireless enabled products to show compliance with the Radio Equipment Directive 2014/53/EU, as part of the CE marking requirements.

Common Wireless Standards can be found at

Contact D.L.S. today to determine the specific requirements in meeting compliance for equipment and products used in industrial environments.