IEC 60947-8:2021
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
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28-07-2021
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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.
| Committee |
TC 121/SC 121A
|
| DocumentType |
Standard
|
| Pages |
82
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| PN-EN IEC 60947-8:2023-09 | Identical |
| SS-EN IEC 60947-8, UTG 2:2023 | Identical |
| DIN EN IEC 60947-8:2023-10 | Identical |
| OVE EN IEC 60947-8:2023 11 01 | Identical |
| VDE 0660-302:2023-10 | Identical |
| DS/EN IEC 60947-8:2023 | Identical |
| UNE-EN IEC 60947-8:2023 | Identical |
| CEI EN IEC 62061:2023 | Safety of machinery - Functional safety of safety-related control systems |
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