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IEC 60947-4-2 Ed. 4.1 en:2024

Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – Semiconductor motor controllers, starters and soft-starters
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International Electrotechnical Commission Logo

IEC 60947-4-2 Ed. 4.1 en:2024

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

IEC 60947-4-2 Ed. 4.1 en:2024
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.
SDO IEC: International Electrotechnical Commission
Document Number IEC 60947
Publication Date Not Available
Language en - English
Page Count
Revision Level 4.1
Supercedes
Committee 121A
Publish Date Document Id Type View
Not Available IEC 60947-4-2 Ed. 4.1 en:2024 Revision
June 1, 2020 IEC 60947-4-2 Ed. 4.0 b:2020 Revision
June 1, 2020 Revision