Standard

NEK IEC 60947-4-2:2020

Jun 2020 Published

Note: This standard has a new edition: NEK IEC 60947-4-2:2020+A1:2024 CSV

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Amendment 1 - Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters Published NEK IEC 60947-4-2:2020/A1:2024 Amendment from Publication date: Nov 2024 Version: 1 Pages: 23 Language: English Services: Read Online (No printing ), Printed and bound

Abstract

IEC 60947-4-2:2020 applies to semiconductor motor controllers, starters and soft-starters which can include a series mechanical switching device, intended to be connected to circuits the rated voltage of which does not exceed 1 000 V AC. This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - scope exclusions; - editorial correction of notes and hanging paragraphs; - reference to IEC 62683-1; - safety aspects related to: - general aspects; - limited energy circuits; - electronic circuits; - mention of dedicated wiring accessories; - power consumption measurement; - alignment to IEC 60947-1:2020.

Document information

Standard from NEK
Published: 26 June 2020
Edition: 4.0
Version: 1
Document type: NAT
Pages
ISBN:

ICS 29.130.20
National Committee NEK/NK121

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Merged into: NEK IEC 60947-4-2:2020+A1:2024 CSV
Replaces: NEK IEC 60947-4-2:2011
Adopted from: IEC 60947-4-2:2020

NEK IEC 60947-4-2:2020

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