| Publication CODE |
Title |
| NBN EN IEC 60947-4-3:2024 (2024-12) |
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 4-3: CONTACTORS AND MOTOR-STARTERS - SEMICONDUCTOR CONTROLLERS AND SEMICONDUCTOR CONTACTORS FOR NON-MOTOR LOADS |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
20.00 €
|
6. |
Description
IEC 60947-4-3:2020(E) applies to semiconductor controllers and semiconductor contactors for non-motor load intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V AC.
It covers their use:
' for operations of changing the state of AC electric circuits between the ON-state and the OFF-state;
' with or without bypass switching devices;
' as controller, for reducing the amplitude of the RMS AC voltage.
This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) scope exclusions;
b) editorial correction of notes and hanging paragraphs;
c) safety aspects related to:
- general aspects;
- limited energy circuits;
- electronic circuits;
d) mention of dedicated wiring accessories;
e) power consumption measurement;
f) alignment to IEC 60947-1:2020;
g) alignment with IEC 60947-4-2 when appropriate.
|
| 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 |
2024-10-16 |
| NBN Approval |
2024-12-18 |
| NBN Status |
New |
|
| Date of ratification (d.o.r.) |
2024-10-16 |
| Date of announcement (d.o.a.) |
2025-06-30 |
| Date of publication (d.o.p.) |
2025-12-31 |
| Date of withdrawal former edition (d.o.w.) |
2027-12-31 |
| IEC file modification date |
2024-12-14 |
|
