Reed switches - Part 1: Generic specification

IEC 62246-1:2015, which is a generic specification, applies to all types of reed switches including magnetically biased reed switches of assessed quality for use in general and industrial applications. Mercury wetted reed switches are not covered by this standard due to their possible environmental impact. It lists the tests and measurement procedures which may be selected for use in detail specifications for such reed switches. This standard applies to reed switches which are operated by an applied magnetic field; it is not restricted to any particular type of contact load. For elementary relays with reed switches, this standard is recommended to be used together with the standards IEC 61810-1, IEC 61811-1 as applicable. For applications of reed switches, this standard is recommended to be used together with specific product standards. This standard cancels and replaces the second edition of IEC 62246-1 published in 2011. It constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- inclusion of Introduction;
- update of the scope, the terms and definitions, the rated values and the test and measurement procedure;
- improvement of dielectric test, electrical endurance tests covering maximum electrical endurance test and overload test;
- improvement of Table F.1 for electrical ratings based on classification;
- inclusion of new Table G.1 for horsepower ratings based on classification.

Contacts à lames souples - Partie 1: Spécification générique

L'IEC 62246-1:2015, qui est une spécification générique, s'applique à tous les types de contacts à lames souples, y compris les contacts à lames souples polarisés magnétiquement ayant une qualité assurée pour être utilisés dans des applications générales et industrielles. Les contacts à lames souples mouillés au mercure ne sont pas couverts par la présente Norme en raison de leur possible impact sur l'environnement. Elle énumère les procédures d'essai et de mesure qui peuvent être sélectionnées pour être utilisées dans des spécifications particulières relatives à de tels contacts à lames souples. La présente Norme s'applique aux contacts à lames souples qui sont manoeuvrés par un champ magnétique appliqué; elle n'est restreinte à aucun type particulier de charge de contacts. Pour les relais élémentaires équipés de contacts à lames souples, il est recommandé d'utiliser la présente Norme conjointement avec les normes IEC 61810-1 et IEC 61811-1 selon le cas. Pour les applications des contacts à lames souples, il est recommandé d'utiliser la présente Norme conjointement avec les normes de produits spécifiques. La présente Norme annule et remplace la deuxième édition de l'IEC 62246-1 parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout de l'introduction;
- mise à jour du domaine d'application, des termes et définitions, des valeurs assignées et de la procédure d'essai et de mesure;
- amélioration de l'essai diélectrique, des essais d'endurance électrique couvrant l'essai d'endurance électrique maximale et l'essai de surcharge;
- amélioration du Tableau F.1 pour les caractéristiques électriques assignées basées sur la classification;
- ajout du Tableau G.1 pour la puissance assignée en HP (horsepower) basée sur la classification.

General Information

Status
Published
Publication Date
27-Jan-2015
Current Stage
PPUB - Publication issued
Start Date
28-Jan-2015
Completion Date
28-Jan-2015
Ref Project

Buy Standard

Standard
IEC 62246-1:2015 - Reed switches - Part 1: Generic specification
English and French language
163 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

IEC 62246-1
Edition 3.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Reed switches –
Part 1: Generic specification
Contacts à lames souples –
Partie 1: Spécification générique
IEC 62246-1:2015-01(en-fr)
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2015 IEC, Geneva, Switzerland

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 Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org

The stand-alone application for consulting the entire The world's leading online dictionary of electronic and

bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and

Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15

documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International

iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary

The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in

variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions

committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries

and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc

details all new publications released. Available online and If you wish to give us your feedback on this publication or

also once a month by email. need further assistance, please contact the Customer Service

Centre: csc@iec.ch.
A propos de l'IEC

La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des

Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC

Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la

plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
15 langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
Plus de 60 000 entrées terminologiques électrotechniques, en
La recherche avancée permet de trouver des publications IEC

en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et

comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus

projets et les publications remplacées ou retirées. certaines entrées antérieures extraites des publications des

CE 37, 77, 86 et CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished
Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just

Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette

Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:

csc@iec.ch.
---------------------- Page: 2 ----------------------
IEC 62246-1
Edition 3.0 2015-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Reed switches –
Part 1: Generic specification
Contacts à lames souples –
Partie 1: Spécification générique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-2234-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62246-1:2015 © IEC 2015
CONTENTS

FOREWORD ........................................................................................................................... 7

INTRODUCTION ..................................................................................................................... 9

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms and definitions .................................................................................................... 11

3.1 Reed switch types ................................................................................................. 11

3.2 Operating values ................................................................................................... 12

3.3 Operating times (see Figure 4) .............................................................................. 14

3.4 Contacts ............................................................................................................... 17

4 Rated values ................................................................................................................. 20

4.1 General ................................................................................................................. 20

4.2 Frequency of operation ......................................................................................... 20

4.3 Duty factor ............................................................................................................ 20

4.4 Open-circuit voltage across contacts ..................................................................... 20

4.5 Current rating ....................................................................................................... 20

4.6 Load ratings .......................................................................................................... 20

4.7 Number of operations ........................................................................................... 20

4.8 Climatic category .................................................................................................. 21

4.9 Environmental severities ....................................................................................... 21

4.10 Surge voltage ....................................................................................................... 22

4.11 Classification ........................................................................................................ 22

4.12 Contact reliability .................................................................................................. 22

5 Marking ......................................................................................................................... 22

6 Test and measurement procedures ................................................................................ 23

6.1 General ................................................................................................................. 23

6.2 Alternative procedures .......................................................................................... 23

6.3 Standard conditions for testing .............................................................................. 23

6.4 Visual inspection and check of dimensions ........................................................... 23

6.4.1 Visual inspection .......................................................................................... 23

6.4.2 Outline dimensions ...................................................................................... 24

6.4.3 Mass ............................................................................................................ 24

6.4.4 Information to be stated in the detail specification ........................................ 24

6.5 Functional tests .................................................................................................... 24

6.5.1 Procedures .................................................................................................. 24

6.5.2 Requirements .............................................................................................. 25

6.5.3 Information to be stated in the detail specification ........................................ 25

6.6 Remanence test (see Figure 8) ............................................................................. 26

6.6.1 Procedure .................................................................................................... 26

6.6.2 Requirements .............................................................................................. 26

6.6.3 Information to be stated in the detail specification ........................................ 26

6.7 Contact circuit resistance ...................................................................................... 27

6.7.1 Procedure .................................................................................................... 27

6.7.2 Requirements .............................................................................................. 27

6.7.3 Information to be stated in the detail specification ........................................ 28

6.8 Dielectric test ........................................................................................................ 28

6.8.1 Procedures .................................................................................................. 28

---------------------- Page: 4 ----------------------
IEC 62246-1:2015 © IEC 2015 – 3 –

6.8.2 Requirements .............................................................................................. 29

6.8.3 Information to be stated in the detail specification ........................................ 29

6.9 Insulation resistance ............................................................................................. 29

6.9.1 Procedure .................................................................................................... 29

6.9.2 Requirements .............................................................................................. 30

6.9.3 Information to be stated in the detail specification ........................................ 30

6.10 Operating times (see Figures 4, 10 and 11) .......................................................... 30

6.10.1 Procedure .................................................................................................... 30

6.10.2 Requirements .............................................................................................. 31

6.10.3 Information to be stated in the detail specification ........................................ 31

6.11 Contact sticking .................................................................................................... 32

6.11.1 Thermal sticking .......................................................................................... 32

6.11.2 Magnetostrictive sticking .............................................................................. 34

6.12 Robustness of terminals........................................................................................ 35

6.12.1 Procedure .................................................................................................... 35

6.12.2 Requirements .............................................................................................. 35

6.12.3 Information to be stated in the detail specification ........................................ 35

6.13 Soldering (solderability and resistance to soldering heat) ...................................... 35

6.13.1 Procedure .................................................................................................... 35

6.13.2 Requirements .............................................................................................. 35

6.13.3 Information to be stated in the detail specification ........................................ 35

6.14 Climatic sequence ................................................................................................ 35

6.14.1 General ....................................................................................................... 35

6.14.2 Procedure .................................................................................................... 36

6.14.3 Requirements .............................................................................................. 36

6.14.4 Information to be stated in the detail specification ........................................ 36

6.15 Damp heat, steady state ....................................................................................... 37

6.15.1 Procedure .................................................................................................... 37

6.15.2 Requirements .............................................................................................. 37

6.15.3 Information to be stated in the detail specification ........................................ 37

6.16 Rapid change of temperature ................................................................................ 37

6.16.1 Procedure .................................................................................................... 37

6.16.2 Requirements .............................................................................................. 37

6.16.3 Information to be stated in the detail specification ........................................ 37

6.17 Salt mist ............................................................................................................... 37

6.17.1 Procedure .................................................................................................... 37

6.17.2 Requirements .............................................................................................. 38

6.17.3 Information to be stated in the detail specification ........................................ 38

6.18 Vibration ............................................................................................................... 38

6.18.1 Vibration 1 – Functional ............................................................................... 38

6.18.2 Vibration 2 – Survival ................................................................................... 39

6.19 Shock ................................................................................................................... 39

6.19.1 Procedure .................................................................................................... 39

6.19.2 Requirements .............................................................................................. 40

6.19.3 Information to be stated in the detail specification ........................................ 40

6.20 Acceleration test – Functional test only ................................................................. 40

6.20.1 Procedure .................................................................................................... 40

6.20.2 Requirements .............................................................................................. 41

6.20.3 Information to be stated in the detail specification ........................................ 41

---------------------- Page: 5 ----------------------
– 4 – IEC 62246-1:2015 © IEC 2015

6.21 Sealing ................................................................................................................. 41

6.21.1 Procedure .................................................................................................... 41

6.21.2 Requirements .............................................................................................. 41

6.21.3 Information to be stated in the detail specification ........................................ 41

6.22 Electrical endurance ............................................................................................. 41

6.22.1 Types of electrical endurance test................................................................ 41

6.22.2 Standard electrical endurance tests ............................................................. 42

6.22.3 General test arrangements .......................................................................... 42

6.22.4 Procedure .................................................................................................... 43

6.22.5 Standard load conditions ............................................................................. 44

6.22.6 Maximum load conditions ............................................................................. 47

6.22.7 Overload test conditions .............................................................................. 47

6.22.8 Requirements .............................................................................................. 47

6.22.9 Information to be stated in the detail specification ........................................ 48

6.23 Mechanical endurance .......................................................................................... 49

6.23.1 General test arrangements .......................................................................... 49

6.23.2 Procedure .................................................................................................... 49

6.23.3 Requirements .............................................................................................. 50

6.23.4 Information to be stated in the detail specification ........................................ 50

6.24 Maximum cycling frequency .................................................................................. 50

6.24.1 Procedure .................................................................................................... 50

6.24.2 Requirements .............................................................................................. 51

6.24.3 Information to be stated in the detail specification ........................................ 51

6.25 Surge withstand test ............................................................................................. 51

6.25.1 Procedure .................................................................................................... 51

6.25.2 Requirements .............................................................................................. 52

6.25.3 Information to be stated in the detail specification ........................................ 52

6.26 Making and breaking capacities ............................................................................ 52

6.26.1 General test arrangements .......................................................................... 52

6.26.2 Procedure .................................................................................................... 52

6.26.3 Requirements .............................................................................................. 52

6.26.4 Information to be stated in the detail specification ........................................ 52

6.27 Conditional short-circuit current test ...................................................................... 54

6.27.1 General test arrangements .......................................................................... 54

6.27.2 Procedure .................................................................................................... 55

6.27.3 Requirements .............................................................................................. 55

6.27.4 Information to be stated in the detail specification ........................................ 55

6.28 Contact reliability test ........................................................................................... 55

6.28.1 General ....................................................................................................... 55

6.28.2 Procedure .................................................................................................... 55

6.28.3 Requirements .............................................................................................. 56

6.28.4 Information to be stated in the detail specification ........................................ 56

6.29 Temperature rise .................................................................................................. 57

6.29.1 Procedure .................................................................................................... 57

6.29.2 Requirements .............................................................................................. 58

6.29.3 Information to be stated in the detail specification ........................................ 58

6.30 Making current capacity test ................................................................................. 58

6.30.1 General ....................................................................................................... 58

6.30.2 Procedure .................................................................................................... 58

---------------------- Page: 6 ----------------------
IEC 62246-1:2015 © IEC 2015 – 5 –

6.30.3 Requirements .............................................................................................. 58

6.30.4 Information to be stated in the detail specification ........................................ 59

6.31 Breaking current capacity test ............................................................................... 59

6.31.1 General ....................................................................................................... 59

6.31.2 Procedure .................................................................................................... 59

6.31.3 Requirements .............................................................................................. 60

6.31.4 Information to be stated in the detail specification ........................................ 60

Annex A (normative) Standard test coils for reed switches ................................................... 62

Annex B (normative) Test systems ....................................................................................... 64

Annex C (informative) Electrical endurance test circuit ........................................................ 66

Annex D (informative) Inrush current loads .......................................................................... 68

D.1 Filament lamp loads .............................................................................................. 68

D.2 Capacitive loads ................................................................................................... 68

Annex E (informative) Conditional short-circuit current test circuit ........................................ 70

Annex F (informative) Electrical ratings based on classification (see Table F.1) ................... 71

Annex G (informative) Example of horsepower ratings ......................................................... 72

Annex H (informative) Example of test arrangement for contact reliability test (see

Figure H.1) ........................................................................................................................... 73

Annex I (informative) Example of test arrangement for making current capacity test ............ 75

Annex J (informative) Example of test arrangement for breaking current capacity test ......... 77

Bibliography .......................................................................................................................... 79

Figure 1 – Example of reed switch structure ......................................................................... 12

Figure 2 – Example of heavy-duty reed switch structure ....................................................... 12

Figure 3 – Functional characteristics ..................................................................................... 13

Figure 4 – Time definitions .................................................................................................... 15

Figure 5 – Contact diagram of make contact ......................................................................... 17

Figure 6 – Contact diagram of break contact ......................................................................... 17

Figure 7 – Contact diagram of change-over contact .............................................................. 18

Figure 8 – Remanence test sequence ................................................................................... 27

Figure 9 – Sequence of contact circuit resistance measurement ........................................... 28

Figure 10 – Test circuit for the measurement of release and bounce time of a make

contact .................................................................................................................................. 31

Figure 11 – Test circuit for the measurement of time parameters of a change-over

contact .................................................................................................................................. 32

Figure A.1 – Configuration of test coils ................................................................................. 62

Figure B.1 – Test system 1 ................................................................................................... 64

Figure B.2 – Test system 2 ................................................................................................... 64

Figure C.1 – Generalized endurance test circuit .................................................................... 66

Figure C.2 – Functional block diagram .................................................................................. 67

Figure D.1 – Circuit for filament lamp load ............................................................................ 68

Figure D.2 – Example for capacitive load test ....................................................................... 69

Figure E.1 – Conditional short-circuit current test circuit ....................................................... 70

Figure H.1 – Contact reliability test circuit ............................................................................. 73

Figure I.1 – Making current capacity test circuit .................................................................... 75

---------------------- Page: 7 ----------------------
– 6 – IEC 62246-1:2015 © IEC 2015

Figure I.2 – Making current capacity test sequence ............................................................... 75

Figure J.1 – Breaking current capacity test circuit ................................................................. 77

Figure J.2 – Breaking current capacity test sequence ........................................................... 77

Table 1 – Classification ......................................................................................................... 22

Table 2 – Resistive loads ................................................................................................

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.