IEC 61812-1:2023
(Main)Time relays and coupling relays for industrial and residential use - Part 1: Requirements and tests
Time relays and coupling relays for industrial and residential use - Part 1: Requirements and tests
IEC 61812-1:2023 applies to time relays and coupling relays for industrial applications (for example control, automation, signal and industrial equipment) and for automatic electrical controls for use in, on, or in association with equipment for residential and similar use.
The term “relay” as used in this document comprises all types of time relays and coupling relays, other than measuring relays. This document defines type test and routine test to confirm the service condition. Subclause 3.2 provides definitions for different types of time relays in use in the IEC 61812 series. IEC 61812-1:2023 cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) update of references;
b) addition of requirements for risk assessment;
c) addition of requirements for routine test;
d) renumbering of clauses to bring them into a more logical order;
e) clarification of the requirement for shock;
f) addition of cybersecurity requirements for industrial automation and control systems;
g) addition of environmentally conscious design requirement;
h) addition of common data dictionary reference;
i) addition of terms and definitions of relay types;
j) addition of coupling relays in title;
k) addition of coupling relays in scope.
Relais temporisés et relais de de couplage pour applications industrielles et résidentielles - Partie 1: Exigences et essais
L'IEC 61812-1:2023 s'applique aux relais temporisés et aux relais de couplage pour applications industrielles (par exemple, systèmes industriels de commande, d'automatisation et de signalisation) ainsi qu'aux dispositifs de commande électrique automatiques destinés à être utilisés dans, sur ou avec des équipements pour applications résidentielles et analogues. Le terme "relais", utilisé dans le présent document, comprend tous les types de relais temporisés et de relais de couplage, hormis les relais de mesure. Le présent document définit l'essai de type et l'essai individuel de série qui visent à confirmer la condition de service. Les définitions des différents types de relais temporisés utilisés dans la série IEC 61812 sont données en 3.2. L'IEC 61812-1:2023 annule et remplace la deuxième édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) mise à jour des références;
b) ajout d'exigences relatives à l'appréciation du risque;
c) ajout d'exigences relatives à l'essai individuel de série;
d) renumérotation des paragraphes selon un ordre plus logique;
e) clarification de l'exigence relative aux chocs;
f) ajout d'exigences de cybersécurité pour les systèmes d'automatisation et de commande industrielles;
g) ajout d'une exigence d'écoconception;
h) ajout d'une référence au dictionnaire de données commun;
i) ajout de termes et définitions relatifs aux types de relais;
j) ajout des relais de couplage dans le titre;
k) ajout des relais de couplage dans le domaine d'application.
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IEC 61812-1 ®
Edition 3.0 2023-06
REDLINE VERSION
INTERNATIONAL
STANDARD
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inside
Time relays and coupling relays for industrial and residential use –
Part 1: Requirements and tests
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 61812-1 ®
Edition 3.0 2023-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Time relays and coupling relays for industrial and residential use –
Part 1: Requirements and tests
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.70 ISBN 978-2-8322-7136-0
– 2 – IEC 61812-1:2023 RLV © IEC 2023
CONTENTS
FOREWORD . 7
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 12
3.1 Terms and definitions related to general terms . 13
3.2 Terms and definitions of time relay types . 17
4 Classification . 25
4.1 Switching element . 25
4.2 Mechanical construction . 25
4.3 Device mounting . 25
4.4 Connection . 25
4.5 Environment . 25
5 Influence quantities . 25
6 Rated values . 26
6.1 General . 26
6.2 Input voltage and frequency . 26
6.3 Release voltage . 27
6.4 Power consumption . 27
6.5 Output circuit . 27
6.5.1 General . 27
6.5.2 Electromechanical output circuit . 27
6.5.3 Solid state output circuit . 28
6.5.4 Endurance and operating frequency . 28
6.5.5 Conditional short-circuit current . 29
6.6 Ambient temperature. 29
6.7 Transport and storage temperature . 29
6.8 Humidity . 29
6.9 Pollution degree . 29
6.10 Altitude . 29
6.11 Timing circuit function . 30
6.11.1 General . 30
6.11.2 Setting accuracy . 30
6.11.3 Repeatability . 30
6.11.4 Recovery time and minimum control impulse . 30
7 Provisions for testing . 30
7.1 General . 30
7.2 Type test . 31
7.3 Routine test . 32
7.4 Sampling test . 32
8 Documentation and marking . 32
8.1 Data . 32
8.2 Marking . 35
9 Heating . 35
9.1 General . 35
9.2 Test conditions . 36
9.3 Heating of terminals . 37
9.3.1 General . 37
9.3.2 Heating of screw terminals and screwless terminals . 37
9.3.3 Heating of quick-connect terminations . 37
9.3.4 Heating of sockets . 38
9.3.5 Heating of alternative termination types . 38
9.4 Heating of accessible parts . 38
8.5 Heating of insulating materials .
9.5 Ball pressure test . 39
10 Basic operating function . 39
10.1 General . 39
10.2 Operate . 40
10.3 Release . 40
10.4 Time function . 40
10.4.1 General . 40
10.4.2 Functional test at reference values of input quantities. 40
10.4.3 Influencing effects Effect of influence of voltage and temperature . 41
11 Insulation Dielectric strength and impulse withstand . 41
11.1 General . 41
11.2 Preconditioning . 41
11.3 Dielectric strength Insulation test . 42
11.3.1 General . 42
11.3.2 Impulse withstand test . 42
11.3.3 Dielectric AC power frequency voltage test . 43
10.4 Protection against direct contact .
12 Electrical endurance . 45
12.1 General . 45
12.2 Resistive loads, inductive loads, and special loads . 45
12.3 Low energy loads . 45
13 Conditional short-circuit current of an output circuit . 45
13.1 General . 45
13.2 Test procedure . 45
13.3 Test circuit electromechanical output circuit . 46
13.4 Test circuit solid state output circuit . 46
13.5 Condition of switching element after test . 47
14 Insulation coordination and protection against electric shock . 47
14.1 General . 47
14.2 Clearances and creepage distances . 47
14.2.1 General . 47
14.2.2 Clearances . 49
14.2.3 Creepage distances . 50
13.4 Measurement of creepage distances and clearances .
14.3 Solid insulation . 51
14.4 Protection against direct contact . 51
15 Mechanical strength . 51
15.1 General . 51
15.2 Mechanical strength of terminals and current-carrying parts . 52
15.2.1 General . 52
15.2.2 Mechanical strength of screw terminals and screwless terminals . 52
– 4 – IEC 61812-1:2023 RLV © IEC 2023
15.2.3 Mechanical strength of flat quick-connect te
...
IEC 61812-1 ®
Edition 3.0 2023-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Time relays and coupling relays for industrial and residential use –
Part 1: Requirements and tests
Relais temporisés et relais de couplage pour applications industrielles et
résidentielles –
Partie 1: Exigences et essais
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 61812-1 ®
Edition 3.0 2023-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Time relays and coupling relays for industrial and residential use –
Part 1: Requirements and tests
Relais temporisés et relais de couplage pour applications industrielles et
résidentielles –
Partie 1: Exigences et essais
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-7072-1
– 2 – IEC 61812-1:2023 © IEC 2023
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
3.1 Terms and definitions related to general terms . 10
3.2 Terms and definitions of time relay types . 15
4 Classification . 22
4.1 Switching element . 22
4.2 Mechanical construction . 22
4.3 Device mounting . 22
4.4 Connection . 22
4.5 Environment . 22
5 Influence quantities . 22
6 Rated values . 23
6.1 General . 23
6.2 Input voltage and frequency . 23
6.3 Release voltage . 24
6.4 Power consumption . 24
6.5 Output circuit . 24
6.5.1 General . 24
6.5.2 Electromechanical output circuit . 24
6.5.3 Solid state output circuit . 25
6.5.4 Endurance and operating frequency . 25
6.5.5 Conditional short-circuit current . 26
6.6 Ambient temperature. 26
6.7 Transport and storage temperature . 26
6.8 Humidity . 26
6.9 Pollution degree . 26
6.10 Altitude . 26
6.11 Timing circuit function . 26
6.11.1 General . 26
6.11.2 Setting accuracy . 27
6.11.3 Repeatability . 27
6.11.4 Recovery time and minimum control impulse . 27
7 Provisions for testing . 27
7.1 General . 27
7.2 Type test . 27
7.3 Routine test . 28
7.4 Sampling test . 29
8 Documentation and marking . 29
8.1 Data . 29
8.2 Marking . 32
9 Heating . 32
9.1 General . 32
9.2 Test conditions . 33
9.3 Heating of terminals . 33
9.3.1 General . 33
9.3.2 Heating of screw terminals and screwless terminals . 33
9.3.3 Heating of quick-connect terminations . 34
9.3.4 Heating of sockets . 34
9.3.5 Heating of alternative termination types . 35
9.4 Heating of accessible parts . 35
9.5 Ball pressure test . 35
10 Basic operating function . 36
10.1 General . 36
10.2 Operate . 36
10.3 Release . 36
10.4 Time function . 36
10.4.1 General . 36
10.4.2 Functional test at reference values of input quantities. 36
10.4.3 Effect of influence of voltage and temperature . 37
11 Dielectric strength and impulse withstand . 37
11.1 General . 37
11.2 Preconditioning . 37
11.3 Insulation test . 38
11.3.1 General . 38
11.3.2 Impulse withstand test . 38
11.3.3 Dielectric AC power frequency voltage test . 39
12 Electrical endurance . 40
12.1 General . 40
12.2 Resistive loads, inductive loads, and special loads .
...
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