IEC 60947-4-2:2020+AMD1:2024 CSV
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear - Part 4-2: Contactors and motor-starters - Semiconductor motor controllers, starters and soft-starters
Hardcopy , PDF
English
05-11-2024
CORRECTED VERSION 2026-03
IEC 60947-4-2:2020+AMD1:2024 CSV 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.
The content of the corrigendum 1 (2026-03) has been included in this copy.
| Committee |
TC 121/SC 121A
|
| DocumentType |
Standard
|
| Pages |
228
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
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