I.S. EN IEC 60947-5-8:2021
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
Hardcopy , PDF
English
07-05-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Characteristics
6 Product information
7 Normal service, mounting and transport conditions
8 Constructional and performance requirements
9 Tests
Annex A (informative) Example of enabling devices incorporating a three-position enabling switch
Annex B (normative) Procedure to determine reliability data for three-position enabling switches used in functional safety applications
Bibliography
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