IEC 62246-1-1:2013

Reed switches - Part 1-1: Generic specification - Quality assessment

IEC 62246-1-1:2013 is a quality assessment specification which defines requirements and tests to reed switches for use in general and industrial applications. This standard selects from IEC 62246-1:2011 and from other sources the appropriate test procedures to be used in detail specifications derived from this specification. This standard describes sampling and test schedules for qualification approval procedures, quality conformance inspection, formation of inspection lots and intervals between tests. This first edition cancels and replaces the first edition of IEC/PAS 62246-2-1 published in 2008. It is a technical revision. This edition includes the following significant technical changes with respect to the previous editions:
a) inclusion of introduction;
b) update of references, terms and definitions;
c) renumbering of clauses to bring them into a more logical order;
d) inclusion of the generic specifications for reed switches;
e) update of typical applications.
This publication is to be read in conjunction with IEC 62246-1:2011.

Contacts à lames souples - Partie 1-1: Spécification générique - Évaluation de qualité

La CEI 62246-1-1:2013 est une spécification d'évaluation de qualité qui définit les exigences et les essais des contacts à lames souples utilisables dans les applications générales et industrielles. La présente norme sélectionne dans la CEI 62246-1:2011 et dans d'autres sources les procédures d'essai appropriées devant être utilisées dans des spécifications particulières dérivées de la présente spécification. La présente norme décrit les programmes d'échantillonnage et d'essai pour les procédures d'homologation, l'inspection de conformité de qualité, la formation de lots d'inspection et les intervalles entre essais. Cette première édition annule et remplace la première édition de la CEI/PAS 62246-2-1 publiée en 2008. Elle constitue une révision technique. La présente édition comporte les modifications techniques significatives suivantes par rapport aux éditions précédentes:
a) inclusion d'une introduction;
b) mise à jour des références et des termes et définitions;
c) renumérotation des articles pour les mettre dans un ordre plus logique;
d) inclusion de spécifications génériques pour les contacts à lames souples;
e) mise à jour d'applications typiques.
Cette publication doit être lue conjointement avec la .>

General Information

• Status: Published
• Publication Date: 23-May-2013
• 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: 06-Feb-2018

Relations

• Revised: IEC 62246-1-1:2018 - Reed switches - Part 1-1: Generic specification - Blank detail specification
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62246-1-1


®


Edition 1.0 2013-05



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Reed switches –
Part 1-1: Generic specification – Quality assessment

Contacts à lames souples –
Partie 1-1: Spécification générique – Évaluation de qualité



IEC 62246-1-1:2013

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IEC 62246-1-1



®



Edition 1.0 2013-05







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE











Reed switches –

Part 1-1: Generic specification – Quality assessment




Contacts à lames souples –

Partie 1-1: Spécification générique – Évaluation de qualité

















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XA


ICS 29.120.70 ISBN 978-2-83220-818-2



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

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CONTENTS



FOREWORD . 4

INTRODUCTION . 6

1 Scope . 7


2 Normative references . 7

3 Terms and definitions . 7

3.1 Reed switch types . 8

3.2 Tests . 8
3.3 Abbreviations . 8
4 Test schedules . 9
4.1 General . 9
4.2 Qualification approval procedures . 9
4.3 Quality conformance inspection . 9
4.4 Formation of inspection lots . 9
4.5 Intervals between tests . 9
4.6 Standard conditions for testing . 9
4.7 Mounting of test specimens during the test . 9
4.8 General conditions for testing . 10
5 Characteristic values of the reed switches . 39
5.1 Characteristics values for general data for reed switches . 39
5.2 Standard test coil number for tests . 40
5.3 Contact data . 40
5.3.1 Contact reliability, electrical endurance, making and breaking current
capacities and switching frequency . 40
5.3.2 Static contact-circuit resistance . 45
5.3.3 Mechanical endurance . 45
5.4 Environmental data . 45
6 Reliability – Failure rate data . 46
7 Marking and documentation . 46
7.1 Marking of the reed switch . 46
7.2 Marking of the packaging . 46
Annex A (normative) Mounting in a standard coil . 47
Annex B (normative) Variants . 48

Annex C (informative) Typical applications. 49
Bibliography . 50

Figure A.1 – Switch direction and position in a standard coil . 47

Table 1 – Quality conformance inspection (1 of 8) . 11
Table 2 – Tests for qualification approval (1 of 17) . 19
Table 3 – Qualification approval (1 of 3) . 36
Table 4 – Characteristic values for general data for reed switches (1 of 2) . 39
Table 5 – Standard test coil number for tests for reed switches. 40
Table 6 – Variant A of reed switches (1 of 3) . 41
Table 7 – Variant B of heavy-duty reed switches . 44

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62246-1-1 © IEC:2013 – 3 –


Table 8 – Environmental data for reed switches . 45

Table 9 – Reliability data for reed switches . 46

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INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________



REED SWITCHES –



Part 1-1: Generic specification – Quality assessment



FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 62246-1-1 has been prepared by IEC Technical Committee 94: All-or-nothing electrical
relays.

This first edition cancels and replaces the first edition of IEC/PAS 62246-2-1 published in
2008. It is a technical revision.
This edition includes the following significant technical changes with respect to the previous
editions:
– inclusion of introduction;
– update of references, terms and definitions;
– renumbering of clauses to bring them into a more logical order;
– inclusion of the generic specifications for reed switches;
– update of typical applications.

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62246-1-1 © IEC:2013 – 5 –


The text of this standard is based on the following documents:


FDIS Report on voting

94/358/FDIS 94/359/RVD



Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above Table.


This standard is intended to be used in conjunction with IEC 62246-1:2011.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62246 series, published under the general title Reed switches, can
be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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INTRODUCTION


Reed switches which are in mass production and which are widely used in practice could be

classified by the following characteristics:


a) Size:

– Normal or standard reed switches with a tube more than 50 mm in length and more

than 5 mm in diameter;

– Sub-miniature reed switches with a tube more than 20 mm and up to 50 mm in length
and up to 5 mm in diameter;


– Miniature reed switches with a tube more than 10 mm and up to 20 mm in length and
more than 2 mm and up to 5 mm in diameter;
– Micro-miniature reed switches with a tube more than 4 mm and up to 10 mm in length
and more than 1,5 mm and up to 5 mm in diameter.
b) Type of switching of electric circuit:
– Closing or normally open – A type;
– Opening or normally closed – B type;
– Changeover – C type.
c) Withstand voltage level:
– Low-voltage (up to 1 000 V);
– High-voltage (more than 1 000 V).
d) Switches power:
– Low-power (up to 60 W);
– Power (100 to 1 000 W);
– High-power (more than 1 000 W).
e) Types of electric contacts:
– The tube is filled with dry air, gas mixture, vacuumized, or high pressurized.
Based on the general provisions of IEC 62246-1, this standard selects and specifies test
procedures for reed switches where enhanced requirements for the verification of quality
assessment specification apply.
This standard describes sampling and test schedules for qualification approval procedures,
quality conformance inspection, formation of inspection lots and intervals between tests.
NOTE All type of reed switches exclude mercury reed switches.

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62246-1-1 © IEC:2013 – 7 –


REED SWITCHES –



Part 1-1: Generic specification – Quality assessment








1 Scope


This part of the IEC 62246 which is a quality assessment specification defines requirements

and tests to reed switches for use in general and industrial applications.
This standard is intended to be used in conjunction with IEC 62246-1:2011.
This standard selects from IEC 62246-1:2011 and from other sources the appropriate test
procedures to be used in detail specifications derived from this specification.
Reed switch types are specified depending on characteristic values and tests.
NOTE Mercury wetted reed switches are not covered by this standard due to their possible environmental impact.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-2-6:2007, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC 60068-2-11:1981, Basic environmental testing procedures – Part 2-11: Tests – Test Ka:
Salt mist
IEC 60068-2-14:2009, Environmental testing – Part 2-14: Tests – Test N: Change of
temperature
IEC 60068-2-20:2008, Environmental testing – Part 2-20: Tests – Test T: Test methods for
solderability and resistance to soldering heat of devices with leads

IEC 60068-2-21:2006, Environmental testing – Part 2-21: Tests – Test U: Robustness of
terminations and integral mounting devices
IEC 60068-2-78:2001, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat,
steady state
IEC 60127-2:2003, Miniature fuses – Part 2: Cartridge fuse-links
IEC 61373:2010, Railway applications – Rolling stock equipment – Shock and vibration tests
IEC 62246-1: 2011, Reed switches – Part 1: Generic specification
3 Terms and definitions
The terms and definitions given in IEC 62246-1:2011, as well as the following, apply.

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3.1 Reed switch types


3.1.1

type

products having similar design features and nominal dimensions manufactured by the same

techniques and falling within a range of ratings specified by the manufacturer

Note 1 to entry: Mounting accessories are ignored, provided they have no significant effect on the test results.


3.1.2

variant

variation within a type having specific characteristics

3.1.3
reed switch
assembly containing contact blades, partly or completely made of magnetic material,
hermetically sealed in an envelope and controlled by means of an externally generated
magnetic field (e.g. an energizing quantity applied to a coil)
3.1.4
high voltage vacuum reed switch
reed switch, in which ability to switch high voltages is achieved by a high vacuum within the
hermetically sealed envelope
3.1.5
heavy-duty reed switch
reed switch, in which greater switching capacity is achieved
Note 1 to entry: Blades having additional contact tips or a contact tip and spring which separate the magnetic
path and electric path are typical examples of techniques to increase switching capacity.
3.2 Tests
3.2.1
routine test
conformity test made on each reed switch during or after manufacture
3.2.2
lot-by-lot test
test carried out periodically on a sample of reed switches drawn from running production at
least once a month
3.2.3

periodic test
test carried out periodically on a sample of reed switches drawn from running production at
least once a year and every two years
Note 1 to entry: The results from periodic tests are used verify that the level of technical performance is
maintained.
3.3 Abbreviations
3.3.1
IL
inspection level
inspection level which determines the relationship between the lot or batch size and the
sample size
Note 1 to entry: The size of the sample drawn from the lot is dependent on the severity of the inspection level.

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62246-1-1 © IEC:2013 – 9 –


3.3.2

AQL

acceptance quality level

maximum percent defective that can be considered satisfactory as a process average


4 Test schedules


4.1 General

Test procedures are referenced in the corresponding subclauses of IEC 62246-1:2011.


4.2 Qualification approval procedures
– Sampling and test schedule are specified in Table 2 and Table 3.
– The tests specified and their order is mandatory.
– Tests stated in Table 2 and 3 are mandatory for the variants except when otherwise
specified.
4.3 Quality conformance inspection
An initial conformity test has to be passed and then confirmed by routine tests, lot-by-lot tests
and periodic tests.
Quality conformance inspection contains the tests stated in Table 1:
– Group A: routine tests;
– Groups A and B: lot-by-lot tests;
– Group C: periodic tests.
Unless otherwise stated in this specification, all tests of Table 1 are mandatory.
Where a subgroup contains cumulative tests, the order of the tests is mandatory. Specimens
that have been subjected to tests denoted as destructive (D) shall not be released for delivery.
Specimens that have been subjected to tests denoted as non-destructive (ND) are permitted
to be released for delivery.
4.4 Formation of inspection lots
The basis for determination of sample size for the quality conformance inspection is the reed
switch quantity produced during one month.

4.5 Intervals between tests
– Subgroup A0: at shipment.
– Subgroups A4 and B1: at least once a month.
– Subgroups C1: at least once a year.
– Subgroup C4: at least once every two years.
4.6 Standard conditions for testing
If not otherwise stated, all tests shall be performed under standard conditions for testing
according to 7.3 of IEC 62246-1:2011.
4.7 Mounting of test specimens during the test
The following requirement shall apply for shock and vibration tests:

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The reed switch shall be mounted by its normal mounting method to the test fixture, where

inherent resonances have been minimized so as not to invalidate the test.


4.8 General conditions for testing


Unless otherwise stated, the test coil number and when applicable its polarity specified in

Table 5 shall be used for all tests. Unless otherwise stated in this specification, the polarity

shall be as specified by the manufacturer.

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62246-1-1 © IEC:2013 – 11 –


Table 1 – Quality conformance inspection (1 of 8)


Group A
Subgroup A0


For all tests in this subgroup: 100 % test.

Test Test Test conditions according to Performance

no. IEC 62246-1:2011 requirements

A0 – 1 Visual inspection and Subclause 7.4 According to Table 4

check of dimensions

(ND) Marking as specified in 7.1
A0 – 2 Functional tests (ND) Subclause 7.5, Procedure 1

Application points and standard test coil number: According to Table 5

must-operate value: According to Table 4
saturate value: 150 % of must-operate
must-release value:

Contact failure-to-make and failure-to-break by
monitoring a current, typically
10 mA at 24 V DC max.
A0 – 3 Contact circuit Subclause 7.7 Initial value according to Table 4
resistance (ND)
Application points: terminals of closed
contacts
Standard test coil number: According to Table 5

Test coil voltage: 150 % of must-operate
Test voltage max.: 6 V DC or 6 V AC
Test current max.: 1 A
A0 – 4 Dielectric test (ND) Subclause 7.8

Application points and test voltage: According to Table 4

Duration of test: 1 min Maximum leakage current:

0,5 mA
NOTE A shorter test with a higher voltage can be
stated in the detail specification.
A0 – 5 Operating times (ND)
Subclause 7.10


Application points and standard test coil number: According to Table 5


Test coil voltage: 150 % of must-operate

1) operate time According to Table 4
2) release time
3) operate bounce time

Contact failure-to-make and failure-to-break by
monitoring a current, typically 10 mA at 24 V DC
max.
A0 – 6 Sealing (ND) Subclause 7.21

Application points and standard test coil number: According to Table 5

Arc time during test for heavy-duty reed switches: According to Table 7

Test coil voltage: 150 % of must-operate


Test voltage: 100 V DC – 110 V DC

Test current: 0,5 A – 0,55 A

Total number of operations required: 3

Leak test for reed switches and high voltage reed
switch.

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Table 1 (2 of 8)


Subgroup A4 (period: inspection lot refers to the production volume in one month)

Test Test Test conditions according to IL AQL Performance

no. IEC 62246-1:2011 requirements

1 Visual inspection and Subclause 7.4  According to Table 4

check of dimensions
Marking as specified
(ND)
in 7.1

2 Functional tests (ND) Subclause 7.5, Procedure 1


Application points and standard test coil number: According to Table 5

must-operate value
saturate value: 150 % of must-operate According to Table 4
must-release value

Contact failure-to-make and failure-to-break by monitoring
a current, typically 10 mA at 24 V DC max.
3 Contact-circuit Subclause 7.7  Initial value according
resistance (ND) to Table 4
Application points: terminals of closed contacts
Standard test coil number:

Test coil voltage: 150 % of must-operate According to Table 5

Test voltage max. 6 V DC or 6 V AC

Test current max.: 1 A

4 Dielectric test (ND) Subclause 7.8 S4 1,0

Application points and test voltage: According to Table 4

Duration of test: 1 min Maximum leakage
current:
NOTE A shorter test with a higher voltage can be stated in
0,5 mA
the detail specification.
5 Operating times (ND) Subclause 7.10


Application points and standard test coil number: According to Table 5


Test coil voltage: 150 % of must-operate

1) operating time
2) release time According to Table 4
3) operate bounce time

Contact failure-to-make and failure-to-break by monitoring
a current, typically 10 mA at 24 V DC max.
6 Sealing (ND) Subclause 7.21


According to Table 5
Application points and standard test coil number:

Arc time during test for heavy-duty reed switches:
According to Table 7
Test coil voltage: 150 % of must-operate



Test voltage: 100 V DC – 110 V DC

Test current: 0,5 A – 0,55 A




Total number of operations required: 3

Leak test for reed switches and high-voltage vacuum reed

switch.

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62246-1-1 © IEC:2013 – 13 –


Table 1 (3 of 8)


Subgroup B1 (period: inspection lot refers to the production volume of one month)

Test Test Test conditions according to IL AQL Performance

no. IEC 62246-1:2011 requirements

7 Contact reliability test Subclause 7.28 S3 2,5

(D)

Test switch type and standard test coil According to Table 5

number:


Test coil voltage: 150 % of must-operate


Coil suppression: N/A
Duty cycle: 50 %

Switching load conditions: According to Table 6

Monitoring conditions: According to Table 6
At each cycle during the test

Final measurements:

Test 3 – contact circuit resistance According to Table 4

Test 2 – functional tests According to Table 4

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Table 1 (4 of 8)


Subgroup C1 (period: one year)

Test Test Test conditions according to Sample Acceptable Performance

no. IEC 62246-1:2011 size number of requirements

failures

8 Robustness of Subclause 7.12 (in accordance with 6 0 According to Table 4

terminals (D)
...