IEC 60947-5-8:2020 + Redline

IEC 60947-5-8:2020 + Redline

IEC 60947-5-8:2020 (Redline version) Low-voltage switchgear and controlgear - Part 5-8: Control circuit devices and switching elements - Three-position enabling switches

€224.00

Details

IEC 60947-5-8:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its 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.

Additional Info

Author International Electrotechnical Commission (IEC)
Committee TC 121/SC 121A
Published by IEC
Document type Standard
Edition 2.0
ICS 29.130.20 : Low voltage switchgear and controlgear
Number of pages 77
Keyword IEC60947-5-8,IEC 60947-5-8:2020 RLV,IEC 60947-5-8,TC 121/SC 121A