| Publication CODE |
Title |
| NBN EN IEC 60947-4-2:2023 (2023-03) |
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-2: CONTACTORS AND MOTOR-STARTERS - SEMICONDUCTOR MOTOR CONTROLLERS, STARTERS AND SOFT-STARTERS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
18.00 €
|
5. |
Description
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.
|
| Class |
C
|
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally
only available in English or French. Only the cover page is translated
and the document itself is in English or in French.
|
|
|
| Committee |
CLC/TC 121A
Low-voltage switchgear and controlgear
|
| BEC Approval |
2023-01-11 |
| NBN Approval |
2023-03-08 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2023-01-11 |
| Date of announcement (d.o.a.) |
2023-04-11 |
| Date of publication (d.o.p.) |
2023-10-11 |
| Date of withdrawal former edition (d.o.w.) |
2026-01-11 |
| IEC file modification date |
2023-03-04 |
|
