| Publication CODE |
Title |
| IEC 60947-5-8:2020 (2020-08) |
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5-8: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - THREE-POSITION ENABLING SWITCHES |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
159.00 €
|
50. |
Description
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.
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| Committee |
TC 121/SC 121A
Low-voltage switchgear and controlgear
|
| Responsible |
Ir DELENS Marc
|
| BEC Approval |
2020-08-12 |
| ICS-Code (International Standards Classification) |
29.130.20
|
| NBN Status |
New |
|
| IEC publication date |
2020-08-12 |
| IEC stability date |
2023-12-31 |
| IEC file modification date |
2020-08-12 |
| IEC last modification date |
2020-08-12 |
|
