| Publication CODE |
Title |
| IEC 60947-8:2021 (2021-07) |
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 8: CONTROL UNITS FOR BUILT-IN THERMAL PROTECTION (PTC) FOR ROTATING ELECTRICAL MACHINES |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
286.00 €
|
82. |
Description
IEC 60947-8:2021 specifies requirements for control units, which control a switching device in response to the PTC thermistors incorporated in rotating electrical machines and the industrial application.
This second edition cancels and replaces the first edition published in 2003, Amendment 1:2006 and Amendment 2:2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- safety aspects related to:
- general aspects;
- limited energy circuits;
- electronic circuits;
- alignment to IEC 60947-1:2020;
- wire break detection function;
- the term detector is replaced by thermistor;
- reference to IEC 60738-1-4.
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| Committee |
TC 121/SC 121A
Low-voltage switchgear and controlgear
|
| Responsible |
Ir DELENS Marc
|
| BEC Approval |
2021-07-28 |
| ICS-Code (International Standards Classification) |
29.130.20
|
| NBN Status |
New |
|
| IEC publication date |
2021-07-28 |
| IEC stability date |
2024-12-31 |
| IEC file modification date |
2021-07-28 |
| IEC last modification date |
2021-07-28 |
|
