IEC 62246-1:2011

Reed switches - Part 1: Generic specification

IEC 62246-1:2011 applies to all types of reed switches including magnetically biased reed switches of assessed quality for use in general and industrial applications. It lists the tests and measurement procedures which may be selected for use in detail specifications for such reed switches. It also specifies the quality assessment procedures to be followed. This new edition includes the following significant technical changes with respect to the previous one:
- inclusion of the generic specifications for all types of reed switches, but mercury wetted reed switches have been removed from the scope due to their potential for environmental impact;
- inclusion of three fundamental conformity assessment procedures for quality assessment.

Contacts à lames souples - Partie 1: Spécification générique

La CEI 62246-1:2011 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. Elle énumère les essais et les procédures de mesure qui peuvent être sélectionnés pour être utilisés dans des spécifications particulières relatives à de tels contacts à lames souples. Elle spécifie également les procédures d'évaluation de la qualité devant être suivies. La présente nouvelle édition comporte les modifications techniques significatives suivantes par rapport à l'édition précédente:
- ajout de spécifications génériques pour tous les types de contacts à lames souples, mais les contacts à lames souples mouillés au mercure ont été retirés du domaine d'application en raison de leur potentiel d'impact sur l'environnement;
- ajout de trois procédures fondamentales d'évaluation de la conformité pour l'évaluation de la qualité.

General Information

• Status: Published
• Publication Date: 09-Feb-2011
• ICS: 29.120.70 - Relays
• Technical Committee: TC 94 - Electrical relays
• Drafting Committee: WG 6 - TC 94/WG 6
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 28-Jan-2015

Relations

• Revised: IEC 62246-1:2015 - Reed switches - Part 1: Generic specification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62246-1
®

Edition 2.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Reed switches –
Part 1: Generic specification

Contacts à lames souples –
Partie 1: Spécification générique

IEC 62246-1:2011

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IEC 62246-1
®

Edition 2.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Reed switches –
Part 1: Generic specification

Contacts à lames souples –
Partie 1: Spécification générique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.120.70 ISBN 978-2-88912-358-2

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
3.1 Terms and definitions of reed switch types . 10
3.2 Terms and definitions of operating values . 11
3.3 Terms and definitions related to operating times (see Figure 2) . 13
3.4 Terms and definitions related to contacts . 16
4 Rated values . 18
4.1 General . 18
4.2 Frequency of operation . 19
4.3 Duty factor . 19
4.4 Open-circuit voltage across contacts . 19
4.5 Current rating . 19
4.6 Load ratings . 19
4.7 Number of operations . 19
4.8 Climatic category . 19
4.9 Environmental severities . 20
4.10 Surge voltage . 20
4.11 Classification . 21
4.12 Contact reliability . 21
5 Marking . 21
6 Quality assessment procedures . 22
6.1 General . 22
6.2 Supplier’s declaration of conformity . 22
6.3 Second-party conformity assessment . 22
6.4 Third-party certification. 22
6.5 IECEE scheme . 22
6.6 IECQ system . 22
6.6.1 General . 22
6.6.2 Primary stage of manufacture . 23
6.6.3 Structurally similar components . 23
6.6.4 Subcontracting . 23
6.6.5 Qualification approval procedures. 23
6.6.6 Quality conformance inspection requirements . 23
6.6.7 Delivery of units subjected to destructive tests or non-destructive
tests . 24
6.6.8 Delayed delivery . 24
6.6.9 Supplementary procedure for deliveries . 24
6.6.10 Unchecked parameters . 24
6.6.11 Release for delivery before the completion of Group B tests . 24
6.6.12 Screening procedures . 24
7 Test and measurement procedures . 24
7.1 General . 24
7.2 Alternative procedures . 24
7.3 Standard conditions for testing . 25

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62246-1  IEC:2011 – 3 –
7.4 Visual inspection and check of dimensions . 25
7.4.1 Visual inspection . 25
7.4.2 Outline dimensions . 25
7.4.3 Mass . 25
7.4.4 Information to be stated in the detail specification . 25
7.5 Functional tests . 26
7.5.1 Procedures . 26
7.5.2 Requirements . 27
7.5.3 Information to be stated in the detail specification . 27
7.6 Remanence test (see Figure 3) . 27
7.6.1 Procedure . 27
7.6.2 Requirements . 28
7.6.3 Information to be stated in the detail specification . 28
7.7 Contact circuit resistance . 28
7.7.1 Procedure . 28
7.7.2 Requirements . 29
7.7.3 Information to be stated in the detail specification . 29
7.8 Dielectric test . 30
7.8.1 Procedures . 30
7.8.2 Requirements . 30
7.8.3 Information to be stated in the detail specification . 30
7.9 Insulation resistance . 30
7.9.1 Procedure . 30
7.9.2 Requirements . 31
7.9.3 Information to be stated in the detail specification . 31
7.10 Operating times (see Figures 2, 5 and 6) . 31
7.10.1 Procedure . 31
7.10.2 Requirements . 32
7.10.3 Information to be stated in the detail specification . 32
7.11 Contact sticking . 34
7.11.1 Thermal sticking . 34
7.11.2 Magnetostrictive sticking . 36
7.12 Robustness of terminals . 37
7.12.1 Procedure . 37
7.12.2 Requirements . 37
7.12.3 Information to be stated in the detail specification . 37
7.13 Soldering (solderability and resistance to soldering heat) . 37
7.13.1 Procedure . 37
7.13.2 Requirements . 37
7.13.3 Information to be stated in the detail specification . 37
7.14 Climatic sequence . 38
7.14.1 General . 38
7.14.2 Procedure . 38
7.14.3 Requirements . 38
7.14.4 Information to be stated in the detail specification . 38
7.15 Damp heat, steady state . 39
7.15.1 Procedure . 39
7.15.2 Requirements . 39
7.15.3 Information to be stated in the detail specification . 39

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– 4 – 62246-1  IEC:2011
7.16 Rapid change of temperature . 39
7.16.1 Procedure . 39
7.16.2 Requirements . 39
7.16.3 Information to be stated in the detail specification . 39
7.17 Salt mist . 39
7.17.1 Procedure . 39
7.17.2 Requirements . 40
7.17.3 Information to be stated in the detail specification . 40
7.18 Vibration. 40
7.18.1 Vibration 1 – Functional . 40
7.18.2 Vibration 2 – Survival . 40
7.19 Shock . 41
7.19.1 Procedure . 41
7.19.2 Requirements . 41
7.19.3 Information to be stated in the detail specification . 42
7.20 Acceleration test – Functional test only . 42
7.20.1 Procedure . 42
7.20.2 Requirements . 42
7.20.3 Information to be stated in the detail specification . 42
7.21 Sealing . 42
7.21.1 Procedure . 42
7.21.2 Requirements . 42
7.21.3 Information to be stated in the detail specification . 43
7.22 Electrical endurance . 43
7.22.1 Types of electrical endurance test . 43
7.22.2 Standard electrical endurance tests . 43
7.22.3 General test arrangements . 43
7.22.4 Procedure . 44
7.22.5 Standard load conditions . 45
7.22.6 Requirements . 48
7.22.7 Information to be stated in the detail specification . 49
7.23 Mechanical endurance. 50
7.23.1 General test arrangements . 50
7.23.2 Procedure . 50
7.23.3 Requirements . 51
7.23.4 Information to be stated in the detail specification . 51
7.24 Maximum cycling frequency . 51
7.24.1 Procedure . 51
7.24.2 Requirements . 52
7.24.3 Information to be stated in the detail specification . 52
7.25 Surge withstand test . 52
7.25.1 Procedure . 52
7.25.2 Requirements . 52
7.25.3 Information to be stated in the detail specification . 53
7.26 Making and breaking capacities . 53
7.26.1 General test arrangements . 53
7.26.2 Procedure . 53
7.26.3 Requirements . 53
7.26.4 Information to be stated in the detail specification . 53

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62246-1  IEC:2011 – 5 –
7.27 Conditional short-circuit current test . 56
7.27.1 General test arrangements . 56
7.27.2 Procedure . 56
7.27.3 Requirements . 57
7.27.4 Information to be stated in the detail specification . 57
7.28 Contact reliability test . 57
7.28.1 General . 57
7.28.2 Procedure . 57
7.28.3 Requirements . 58
7.28.4 Information to be stated in the detail specification . 58
7.29 Temperature rise . 59
7.29.1 Procedure . 59
7.29.2 Requirements . 59
7.29.3 Information to be stated in the detail specification . 60
7.30 Making current capacity test . 60
7.30.1 General . 60
7.30.2 Procedure . 60
7.30.3 Requirements . 60
7.30.4 Information to be stated in the detail specification . 60
7.31 Breaking current capacity test . 61
7.31.1 General . 61
7.31.2 Procedure . 61
7.31.3 Requirements . 61
7.31.4 Information to be stated in the detail specification . 62
Annex A (normative) Standard test coils for reed switches . 63
Annex B (normative) Test systems . 65
Annex C (informative) Electrical endurance test circuit . 67
Annex D (informative) Inrush current loads . 69
Annex E (informative) Conditional short-circuit current test circuit . 71
Annex F (informative) Electrical ratings based on classification . 72
Annex G (informative) Example of test arrangement for contact reliability test . 73
Annex H (informative) Example of test arrangement for making current capacity test . 74
Annex I (informative) Example of test arrangement for breaking current capacity test . 75
Bibliography . 76

Figure 1 – Functional characteristics . 12
Figure 2 – Time definitions . 14
Figure 3 – Remanence test sequence . 28
Figure 4 – Sequence of contact circuit resistance measurement . 29
Figure 5 – Test circuit for the measurement of release and bounce time of a make
switch . 33
Figure 6 – Test circuit for the measurement of time parameters of a change-over
switch . 34
Figure A.1 – Configuration of test coils . 63
Figure B.1 – Test system 1 . 65
Figure B.2 – Test system 2 . 65
Figure C.1 – Generalized endurance test circuit . 67

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– 6 – 62246-1  IEC:2011
Figure C.2 – Functional block diagram . 68
Figure D.1 – Circuit for filament lamp load . 69
Figure D.2 – Example for capacitive load test . 70
Figure E.1 – Conditional short-circuit current test circuit . 71
Figure G.1 – Contact reliability test circuit . 73
Figure H.1 – Making current capacity test circuit . 74
Figure H.2 – Making current capacity test sequence . 74
Figure I.1 – Breaking current capacity test circuit . 75
Figure I.2 – Breaking current capacity test sequence . 75

Table 1 – Classification . 21
Table 2 – Resistive loads . 46
Table 3 – Loads . 47
Table 4 – Cables. 47
Table 5 – Making and breaking capacity for electrical endurance tests . 48
Table 6 – Verification of making and breaking capacity under normal conditions . 55
Table 7 – Verification of making and breaking capacity under abnormal conditions . 56
Table A.1 – List of standard test coils . 64
Table F.1 – Examples of contact rating
...