IEC 60947-5-8:2020
Current
The latest, up-to-date edition.
Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches
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English - French, Spanish, Castilian
12-08-2020
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IEC 60947-5-8:2020 specifies requirements for three-position enabling switches. These switches are used as components of enabling devices to provide signals that,
- when activated, allow machine operation to be initiated by a separate start control, and
- when de-activated,
-- initiate a stop function, and
-- prevent initiation of machine operation.
This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- due to the increasing range of useful applications of three-position enabling switches, note of scope, operational characteristics and tests are reviewed;
- figures for example of devices incorporating enabling switch are added in Annex A;
- new Annex B for procedure to determine reliability data for the switch used in functional safety applications is added.
| Committee |
TC 121/SC 121A
|
| DocumentType |
Standard
|
| ISBN |
978-2-8322-8606-7
|
| Pages |
50
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| PN-EN IEC 60947-5-8:2021-08 | Identical |
| NF EN IEC 60947-5-8:2021 | Identical |
| SS-EN IEC 60947-5-8, UTG 2:2021 | Identical |
| I.S. EN IEC 60947-5-8:2021 | Identical |
| VDE 0660-215:2021-08 | Identical |
| DIN EN IEC 60947-5-8:2021-08 | Identical |
| OVE EN IEC 60947-5-8:2021 09 01 | Identical |
| CEI EN IEC 60947-5-8:2021 | Identical |
| UNE-EN IEC 60947-5-8:2021 | Identical |
| EN IEC 60947-5-8:2021 | Identical |
| CEI EN IEC 62061:2023 | Safety of machinery - Functional safety of safety-related control systems |
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