SR EN IEC 60947-4-2:2023

Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters

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.

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General information

Status : Valid
Approval date : 4/28/2023
Number of pages : 240
ICS : 29.130.20 Low voltage switchgear and controgear
Technical Committee : 9 - Low-voltage switchgear and controlgear

Relations with other standards:

Replaces SR EN 60947-4-2:2012
Amended by SR EN IEC 60947-4-2:2023/A1:2025