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  • BSI
    BS EN IEC 60947-5-8:2021 - TC Tracked Changes. Low-voltage switchgear and controlgear - Control circuit devices and switching elements. Three-position enabling switches
    Edition: 2022
    $620.36
    / user per year

Description of BS EN IEC 60947-5-8:2021 - TC 2022

IEC 60947-5-8:2020 is available as IEC 60947-5-8:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

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.

Standard NumberBS EN IEC 60947-5-8:2021 - TC
TitleTracked Changes. Low-voltage switchgear and controlgear - Control circuit devices and switching elements. Three-position enabling switches
StatusDefinitive
Publication Date2022-05-26
DescriptorsControl gear (electric), Low voltage, Voltage, Low-voltage equipment, Switchgear
ICS29.130.20 Low voltage switchgear and controlgear
CommitteePEL/121/1
ISBN978 0 539 21784 1
PublisherBSI
Pages80

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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