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NEK EN IEC 60947-4-3:2024

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Abstract

IEC 60947-4-3:2020(E) applies to semiconductor controllers and semiconductor contactors for non-motor load intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC.It covers their use:– for operations of changing the state of AC electric circuits between the ON-state and the OFF-state;– with or without bypass switching devices;– as controller, for reducing the amplitude of the RMS AC voltage.This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.This edition includes the following significant technical changes with respect to the previous edition:a) scope exclusions;b) editorial correction of notes and hanging paragraphs;c) safety aspects related to:- general aspects;- limited energy circuits;- electronic circuits;d) mention of dedicated wiring accessories;e) power consumption measurement;f) alignment to IEC 60947-1:2020;g) alignment with IEC 60947-4-2 when appropriate.

Document information

  • Standard from NEK
  • Published:
  • Edition: 2024-12
  • Version: 1
  • Document type: NAT
  • ICS 29.130.20
  • ICS 31.180
  • National Committee NEK/NK121

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EU law: 2014/30/EU

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