Customer Support: 131 242

  • Shopping Cart
    There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert
Celebrate World Standards Day. Save 10% with code WSD2026 until 31 Oct. Save now

IEC 60947-4-3:2014

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French

Published date

07-05-2014

Superseded date

31-12-2021

Superseded by

IEC 60947-4-3:2020

$810.92
Including GST where applicable
Summarise this standard

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, symbols and
  abbreviations
4 Classification
5 Characteristics of a.c. semiconductor controllers
  and contactors
6 Product information
7 Normal service, mounting and transport conditions
8 Constructional and performance requirements
9 Tests
Annex A (normative) - Marking and identification
        of terminals
Annex B (informative) - Typical service conditions for
        controllers and contactors
Annex C Vacant
Annex D Vacant
Annex E Vacant
Annex F (informative) - Operating capability
Annex G Vacant
Annex H Vacant
Annex I (normative) - Modified test circuit for
        short-circuit testing of semiconductor
        contactors and controllers
Annex J (informative) - Flowchart for constructing
        bypassed semiconductor controllers tests
Bibliography

IEC 60947-4-3:2014 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical operations by changing the state of a.c. electric circuits between the ON-state and the OFF-state. Typical applications are classified by utilization categories given in Table 2. This second edition cancels and replaces the first edition published in 1999, Amendment 1:2006 and Amendment 2:2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Update of the marking requirements (6.1);
b) Update of the EMC requirements (8.3.2); and
c) Update of the tests requirements (9.3.1, 9.4, 9.4.1.1, 9.4.1.2, 9.4.2.1, 9.4.2.2, 9.4.2.3, 9.4.2.4, 9.4.2.6).

This publication is to be read in conjunction with IEC 60947-1:2007.

Committee
TC 121/SC 121A
DevelopmentNote
To be used in conjunction with IEC 60947-1. (02/2007) Stability date: 2019. (11/2017)
DocumentType
Standard
Pages
159
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

⚠

A newer version of this standard is available.

View Current Edition
$810.92
Including GST where applicable