IEC 60947-5-1:2016

FOREWORD
1 General
2 Terms and definitions
3 Classification
4 Characteristics
5 Product information
6 Normal service, mounting and transport
  conditions
7 Constructional and performance requirements
8 Tests
Annex A (normative) - Electrical ratings based
        on utilization categories
Annex B (normative) - Example of inductive
        test loads for d.c. contacts
Annex C (normative) - Special tests - Durability
        tests
Annex D Vacant
Annex E (normative) - Items subject to agreement
        between manufacturer and user
Annex F (normative) - Class II control circuit
        devices insulated by encapsulation
        Requirements and tests
Annex G (normative) - Additional requirements
        for control circuit devices with integrally
        connected cables
Annex H (normative) - Additional requirements
        for semiconductor switching elements for
        control circuit devices
Annex J (normative) - Special requirements
        for indicator lights and indicating towers
Annex K (normative) - Special requirements
        for control switches with direct opening
        action
Annex L (normative) - Special requirements
        for mechanically linked contact elements
Annex M (normative) - Terminal marking,
        distinctive number and distinctive letter
        for control circuit devices
Annex N (normative) - Procedure to determine
        reliability data for electromechanical
        devices in control circuits used in
        functional safety applications
Bibliography

IEC 60947-5-1:2016 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies to control circuit devices having a rated voltage not exceeding 1 000 V a.c. (at a frequency not exceeding 1 000 Hz) or 600 V d.c. This fourth edition cancels and replaces the third edition published in 2003 and its Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) update of normative references;
b) update and restructuration of subclauses in 7.1;
c) addition of material requirements and test;
d) udpate of EMC requirements;
e) clarification of requirements and update of 8.2;
f) addition of requirements for screwless-type clamping units;
g) udpate of existing Tables 4 and 5;
h) addition of new Tables 6, 7, 8 and 9;
i) addition of a new Figure 10 ;
j) addition of a new Annex N.
This publication is to be read in conjunction with IEC 60947-1:2007.
The contents of the corrigendum of July 2016 and the corrigendum of April 2020 have been included in this copy.