Electromechanical elementary relays - Part 4: Reed relays - General and safety requirements

This part of IEC 61810 applies to electromechanical elementary relays with reed switches (reed
contacts) incorporated into general control circuits. It defines the basic functional and safety
requirements in all areas of electrical engineering or electronics in accordance with the parts of
IEC 61810 series and IEC 62246 series.
This document defines technical deviations/additions to IEC 61810-1. It specifies type tests,
routine tests, special tests and environmental tests to confirm the service conditions for
applications.
NOTE The terms reed switch(es) and reed contact(s) are both in use for the description of the contact set in reed
relays.

Elektromechanische Elementarrelais - Teil 4: Allgemeine- und Sicherheitsanforderungen für Reedrelais

Relais électromécaniques élémentaires - Partie 4: Exigences générales et de sécurité relatives aux relais à lames souples

L'IEC 61810-4:2020 s’applique aux relais électromécaniques élémentaires dont les contacts à lames souples sont destinés à être intégrés dans des circuits de commande générale. Elle définit les exigences fonctionnelles et les exigences de sécurité fondamentales dans tous les domaines de l’électrotechnique ou de l’électronique, conformément aux parties des séries IEC 61810 et IEC 62246.
Le présent document définit les écarts/ajouts techniques par rapport à l’IEC 61810-1. Il spécifie les essais de type, les essais individuels de série, les essais spéciaux et les essais d’environnement destinés à confirmer les conditions de service pour les applications.

Elektromehanski osnovni releji - 4. del: Reed-releji - Splošne in varnostne zahteve za reed-releje

General Information

Status
Published
Public Enquiry End Date
14-Apr-2020
Publication Date
26-Jan-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
13-Jan-2021
Due Date
20-Mar-2021
Completion Date
27-Jan-2021

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 61810-4:2021
01-marec-2021
Elektromehanski osnovni releji - 4. del: Reed-releji - Splošne in varnostne zahteve
za reed-releje
Electromechanical elementary relays - Part 4: Reed relays - General and safety
requirements
Ta slovenski standard je istoveten z: EN IEC 61810-4:2020
ICS:
29.120.70 Releji Relays
SIST EN IEC 61810-4:2021 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 61810-4:2021

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SIST EN IEC 61810-4:2021


EUROPEAN STANDARD EN IEC 61810-4

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2020
ICS 29.120.70

English Version
Electromechanical elementary relays - Part 4: General and
safety requirements for reed relays
(IEC 61810-4:2020)
Relais électromécaniques élémentaires - Partie 4: Elektromechanische Elementarrelais - Teil 4: Reedrelais -
Exigences générales et de sécurité relatives aux relais à Allgemeine und Sicherheitsanforderungen
lames souples (IEC 61810-4:2020)
(IEC 61810-4:2020)
This European Standard was approved by CENELEC on 2020-12-09. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61810-4:2020 E

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SIST EN IEC 61810-4:2021
EN IEC 61810-4:2020 (E)
European foreword
The text of document 94/482/FDIS, future edition 1 of IEC 61810-4, prepared by IEC/TC 94 "All-or-
nothing electrical relays" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 61810-4:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-09-09
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-12-09
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61810-4:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60068 (series) NOTE Harmonized as EN 60068 (series)
IEC 60068-2-6 NOTE Harmonized as EN 60068-2-6
IEC 60068-2-27 NOTE Harmonized as EN 60068-2-27
IEC 60529:1989 NOTE Harmonized as EN 60529:1991 (not modified)
IEC 60529:1989/A1:1999 NOTE Harmonized as EN 60529:1991/A1:2000 (not modified)
IEC 60529:1989/A2:2013 NOTE Harmonized as EN 60529:1991/A2:2013 (not modified)
IEC 60721-3-3:2019 NOTE Harmonized as EN IEC 60721-3-3:2019 (not modified)
IEC 60870-2-2:1996 NOTE Harmonized as EN 60870-2-2:1996 (not modified)
1
IEC 60947-1:2020 NOTE Harmonized as EN IEC 60947-1:— (not modified)
IEC 61643-21:2000 NOTE Harmonized as EN 61643-21:2001 (not modified)
IEC 61643-21:2000/A1:2008 NOTE Harmonized as EN 61643-21:2001/A1:2009
IEC 61643-21:2000/A2:2012 NOTE Harmonized as EN 61643-21:2001/A2:2013 (not modified)
IEC 61810 (series) NOTE Harmonized as EN 61810 (series)
ISO 4589-2:2017 NOTE Harmonized as EN ISO 4589-2:2017 (not modified)
ISO 5659-2:2017 NOTE Harmonized as EN ISO 5659-2:2017 (not modified)

1
To be published. Stage at the time of publication: FprEN IEC 60947-1:2020.
2

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SIST EN IEC 61810-4:2021
EN IEC 61810-4:2020 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2-17 1994 Basic environmental testing procedures - EN 60068-2-17 1994
Part 2-17: Tests - Test Q: Sealing
IEC 60077-1 2017 Railway applications - Electric equipment EN 60077-1 2017
for rolling stock - Part 1: General service
conditions and general rules
IEC 60077-2 2017 Railway applications - Electric equipment EN 60077-2 2017
for rolling stock - Part 2: Electrotechnical
components - General rules
IEC 60571 2012 Railway applications - Electronic - -
equipment used on rolling stock
IEC 61373 2010 Railway applications - Rolling stock EN 61373 2010
equipment - Shock and vibration tests
IEC 61810-1 2015 Electromechanical elementary relays - Part EN 61810-1 2015
1: General and safety requirements
+ A1 2019 + A1 2020
IEC 61810-2 2017 Electromechanical elementary relays - Part EN 61810-2 2017
2: Reliability
IEC 61810-2-1 2017 Electromechanical elementary relays - Part EN 61810-2-1 2017
2-1: Reliability - Procedure for the
verification of B values
10
IEC 61810-7 2006 Electromechanical elementary relays - Part EN 61810-7 2006
7: Test and measurement procedures
IEC 61810-10 2019 Electromechanical elementary relays - Part EN IEC 61810-10 2019
10: Additional functional aspects and
safety requirements for high-capacity
relays
3

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SIST EN IEC 61810-4:2021
EN IEC 61810-4:2020 (E)
Publication Year Title EN/HD Year
IEC 62246-1 2015 Reed switches - Part 1: Generic EN 62246-1 2015
specification
IEC 62246-1-1 2018 Reed switches - Part 1-1: Generic EN IEC 62246-1-1 2018
specification - Blank detail specification
IEC 62497-1 2010 Railway applications - Insulation - -
coordination - Part 1: Basic requirements -
Clearances and creepage distances for all
electrical and electronic equipment
+A1 2013 - -
IEC 62498-1 2010 Railway applications - Environmental - -
conditions for equipment - Part 1:
Equipment on board rolling stock

4

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SIST EN IEC 61810-4:2021



IEC 61810-4

®


Edition 1.0 2020-11




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Electromechanical elementary relays –

Part 4: General and safety requirements for reed relays



Relais électromécaniques élémentaires –

Partie 4: Exigences générales et de sécurité relatives aux relais à lames souples
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 29.120.70 ISBN 978-2-8322-9010-1




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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SIST EN IEC 61810-4:2021
– 2 – IEC 61810-4:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Influence quantities . 10
5 Rated values . 10
6 General provisions for testing . 11
6.1 General . 11
6.2 Type tests . 11
6.3 Routine tests. 12
6.4 Special tests . 13
7 Documentation and marking . 13
8 Heating . 14
9 Basic operating function . 14
10 Dielectric strength . 15
11 Electrical endurance . 16
12 Mechanical endurance . 16
13 Clearances, creepage distances and solid insulation . 16
13.1 General provisions . 16
14 Terminations . 16
15 Sealing . 16
16 Heat and fire resistance . 16
17 Short circuit capacity . 17
18 Vibration . 17
18.1 Procedure . 17
18.2 Requirements . 17
19 Shock . 17
19.1 Procedure . 17
19.2 Requirements . 18
Annexes . 19
Annex A (normative) Explanation regarding reed contacts of reed relays . 20
Annex P (informative) High frequency characteristics test . 21
P.1 General . 21
P.2 Procedures . 21
P.3 Requirements . 22
Annex Q (informative) Special tests – Tests for environmental category . 23
Q.1 General . 23
Q.2 Classification of equipment . 23
Q.3 Special tests for applications . 23
Q.4 Railway applications – Rolling stock. 23
Q.5 Tests and requirements . 24
Bibliography . 27

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SIST EN IEC 61810-4:2021
IEC 61810-4:2020 © IEC 2020 – 3 –
Figure 1 – Example of test arrangement for multi mounting . 14
Figure A.1 – Example explaining terms relating to reed contacts of reed relay . 20
Figure P.1 – Measurement circuit for scattering parameters measurement . 22

Table 1 – Insulation resistance . 10
Table 2 – Frequency range . 11
Table 3 – Type testing . 12
Table 4 – Routine tests . 12
Table 5 – Special relays data . 13
Table 6 – Dielectric voltage . 15
Table 7 – Vibration test conditions . 17
Table 8 – Shock test conditions . 17
Table Q.1 – Special requirements for railway applications – rolling stock . 24
Table Q.2 – Special tests for railway applications – rolling stock . 24

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SIST EN IEC 61810-4:2021
– 4 – IEC 61810-4:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTROMECHANICAL ELEMENTARY RELAYS –

Part 4: General and safety requirements for reed relays

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
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
International Standard IEC 61810-4 has been prepared by IEC technical committee 94: All-or-
nothing electrical relays.
The text of this document is based on the following documents:
FDIS Report on voting
94/482/FDIS 94/484/RVD

Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 61810 series, published under the general title Electromechanical
elementary relays, can be found on the IEC website.
This document is to be read in conjunction with IEC 61810-1.

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SIST EN IEC 61810-4:2021
IEC 61810-4:2020 © IEC 2020 – 5 –
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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SIST EN IEC 61810-4:2021
– 6 – IEC 61810-4:2020 © IEC 2020
INTRODUCTION
Reed relays have been used in wide fields such as household and similar appliances, security
control systems for appliances, measuring instruments, medical equipment, semiconductor and
chip test equipment, information and communication equipment, power distribution facilities and
transit vehicles, etc.
IEC 61810-4 provides technical deviations/additions to IEC 61810-1 in order to specify general
and safety requirements for reed relays, as a result of component safety standards for relevant
systems.
The reed switches are used as the switching contacts of the reed relays, all the requirements
for reed contacts (reed switches) within the reed relay are read in conjunction with IEC 62246
(all parts).

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SIST EN IEC 61810-4:2021
IEC 61810-4:2020 © IEC 2020 – 7 –
ELECTROMECHANICAL ELEMENTARY RELAYS –

Part 4: General and safety requirements for reed relays



1 Scope
This part of IEC 61810 applies to electromechanical elementary relays with reed switches (reed
contacts) incorporated into general control circuits. It defines the basic functional and safety
requirements in all areas of electrical engineering or electronics in accordance with the parts of
IEC 61810 series and IEC 62246 series.
This document defines technical deviations/additions to IEC 61810-1. It specifies type tests,
routine tests, special tests and environmental tests to confirm the service conditions for
applications.
NOTE The terms reed switch(es) and reed contact(s) are both in use for the description of the contact set in reed
relays.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-2-17:1994, Basic environmental testing procedures – Part 2-17: Tests – Test Q:
Sealing
IEC 60077-1:2017, Railway applications – Electric equipment for rolling stock – Part 1: General
service conditions and general rules
IEC 60077-2:2017, Railway applications – Electric equipment for rolling stock – Part 2:
Electrotechnical components – General rules
IEC 60571:2012, Railway applications – Electric equipment used on rolling stock
IEC 61373:2010, Railway applications – Rolling stock equipment – Shock and vibration tests
IEC 61810-1:2015, Electromechanical elementary relays – Part 1: General and safety
requirements
IEC 61810-1:2015/AMD1:2019
IEC 61810-2:2017, Electromechanical elementary relays – Part 2: Reliability
IEC 61810-2-1:2017, Electromechanical elementary relays – Part 2-1: Reliability – Procedure
for the verification of B values
10
IEC 61810-7:2006, Electromechanical elementary relays – Part 7: Test and measurement
procedures
IEC 61810-10:2019, Electromechanical elementary relays – Part 10: Additional functional
aspects and safety requirements for high-capacity relays

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SIST EN IEC 61810-4:2021
– 8 – IEC 61810-4:2020 © IEC 2020
IEC 62246-1:2015, Reed switches – Part 1: Generic specification
IEC 62246-1-1:2018, Reed switches – Part 1-1: Generic specification – Blank detail
specification
IEC 62497-1:2010, Railway applications – Insulation coordination – Part 1: Basic requirements
– Clearances and creepage distances for all electrical and electronic equipment
IEC 62497-1:2010/AMD1:2013
IEC 62498-1:2010, Railway applications – Environmental conditions for equipment – Part 1:
Equipment on board rolling stock
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 61810-1 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Terms and definitions of relay types
3.2 of IEC 61810-1:2015 is applicable with the following addition:
3.2.7
reed relay
electromechanical control circuit devices with connecting terminals, consisting of reed switch
sets (reed contact sets) and coil fitting with/without a housing which could be plastic or metal
Note 1 to entry: See Figure A.1.
3.4 Terms and definitions of operating values
3.4 of IEC 61810-1:2015 is applicable with the following addition:
3.4.7
magnetic interference
tendency of a relay to be influenced by the magnetic field from an adjacent energized relay or
any other surrounding solenoid
Note 1 to entry: This influence can result in depression or elevation of the operate and release voltage of the
affected relay, possibly causing them to fall outside their specification.
Note 2 to entry: Magnetic interference can be minimized by alternating the polarity of adjacent relay coils, by
magnetic shielding, or by placing two relays at right angles to each other.
3.8 Terms and definitions related to high frequency characteristics
3.8.1
frequency range
set of frequencies over which an equipment can be adjusted to operate
satisfactorily
Note 1 to entry: The frequency range of a relay can be subdivided into switched subranges which may or may not
be contiguous.

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SIST EN IEC 61810-4:2021
IEC 61810-4:2020 © IEC 2020 – 9 –
[SOURCE: IEC 60050-702:1992, 702-09-68, modified – “an equipment“ has been replaced
with “a relay” in the “Note 1 to entry”]
3.8.2
capacitance
ability to store an electric charge between contacts
3.8.3
capacitance
ability to store an electric charge between contact and coil
Note 1 to entry: It can have adverse effects for use in high frequency signal transmission circuits of information and
communication equipment.
3.8.4
impedance
quotient of a voltage by a current for a passive linear two-terminal element or two-
terminal circuit with terminals A and B under sinusoidal conditions
[SOURCE: IEC 60050-131:2013, 131-12-43, modified – The definition has been replaced]
3.8.5
isolation
ratio of the power delivered to the output port of a relay, with open contacts, at a
specific frequency, compared to the power emitted from the corresponding output port
3.8.6
insertion loss
resulting from the insertion of a network into a transmission system, the ratio of the power
delivered to that part of the system following the network, before insertion of the network, to the
power delivered to that same part after insertion of the network
Note 1 to entry: The insertion loss is generally expressed in decibels.
[SOURCE: IEC 60050-726:1982, 726-06-07]
3.8.7
return loss
modulus of the reciprocal of the reflection factor, generally expressed in decibels
Note 1 to entry: When impedances can be defined, the return loss is given by the formula:
Z−Z'
−=20lg r 20lg
Z+ Z'
where Z is the characteristic impedance of a transmission line ahead of a discontinuity, or the impedance of a source,
and Z′ is the impedance after the discontinuity or the load impedance seen from the junction between the source and
the load.
[SOURCE: IEC 60050-702:1992, 702-07-25]
3.8.8
repeatability
closeness of agreement between the results of successive
measurements of the same measurand, carried out under the same conditions of measurement,
i.e.:
– by the same measurement procedure;

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SIST EN IEC 61810-4:2021
– 10 – IEC 61810-4:2020 © IEC 2020
– by the same observer;
– with the same measuring instruments, used under the same conditions;
– in the same laboratory;
– at relatively short intervals of time.
[SOURCE: IEC 60050-311:2001, 311-06-06, modified – The Note has been omitted.]
4 Influence quantities
Clause 4 of IEC 61810-1:2015 is applicable.
5 Rated values
Clause 5 of IEC 61810-1:2015 is applicable with the following deviations/additions.
5.2 Rated coil voltage/rated coil voltage range
b) DC voltage, recommended values:
15 V; 32 V; 36 V; 50 V; 55 V; 64 V; 72 V; 87 V; 96 V.
5.8 Contact loads
a) Resistive loads, recommended values
Current: 0,1 A; 0,2 A; 0,3 A; 0,5 A; 1 A; 2 A; 3 A; 5 A; 6 A; 8 A; 10 A; 12 A; 16 A; 20 A; 25 A;
30 A and submultiples thereof.
Voltage: 1 V; 3 V; 4,5 V; 5 V; 12 V; 24 V; 36 V; 42 V; 48 V; 110 V; 125 V; 230 V; 250 V;
300 V; 400 V; 480 V; 500 V; 690 V; 1 000 V (AC/DC); 1 500 V DC, 2 000 V DC, 3 000 V DC,
5 000 V DC, 7 000 V DC, 8 000 V DC, 10 000 V DC, 12 000 V DC and submultiples thereof.
b) Recommended inductive loads: see Annex F of IEC 62246-1:2015.
NOTE 1 IEC 61810-4 considers values higher than 1 500 V DC which is the scope of IEC 61810-1.
NOTE 2 Special requirement on withstand voltage for blocking inductive surge can be applied.
NOTE 3 The voltage values are based on 4.4 of IEC 62246-1:2015.
5.12 Withstand voltage
Recommended withstand voltages: 30 V
...

SLOVENSKI STANDARD
oSIST prEN IEC 61810-4:2020
01-marec-2020
Elektromehanski osnovni releji - 4. del: Reed-releji - Splošne in varnostne zahteve
Electromechanical elementary relays - Part 4: Reed relays - General and safety
requirements
Ta slovenski standard je istoveten z: prEN IEC 61810-4:2020
ICS:
29.120.70 Releji Relays
oSIST prEN IEC 61810-4:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 61810-4:2020

---------------------- Page: 2 ----------------------
oSIST prEN IEC 61810-4:2020
94/464/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61810-4 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2020-01-17 2020-04-10
SUPERSEDES DOCUMENTS:
94/459/CD,94/463/CC

IEC TC 94 : ALL-OR-NOTHING ELECTRICAL RELAYS
SECRETARIAT: SECRETARY:
Austria Mr Bernhard Spalt
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 9,TC 31,TC 44,TC 45,TC 56,TC 59,TC 61,TC
62,TC 65,TC 79,TC 82
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

TITLE:
Electromechanical elementary relays – Part 4: Reed relays – General and safety requirements

PROPOSED STABILITY DATE: 2022

NOTE FROM TC/SC OFFICERS:

1
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2 CONTENTS
3
4 FOREWORD . 4
5 INTRODUCTION . 6
6 1 Scope . 7
7 2 Normative references . 7
8 3 Terms and definitions . 7
9 Terms and definitions of relay types . 7
10 Terms and definitions of operating values . 8
11 Terms and definitions related to contacts . 8
12 4 Influence quantities . 9
13 5 Rated values . 9
14 Rated coil voltage/rated coil voltage range . 9
15 Electrical endurance . 9
16 Contact loads . 9
17 Withstand voltage . 10
18 Insulation resistance . 10
19 Frequency range . 10
20 6 General provisions for testing . 10
21 Kinds of test . 10
22 6.1.1 General . 10
23 6.1.2 Type tests. 11
24 6.1.3 Routine tests . 11
25 6.1.4 Special tests . 12
26 7 Documentation and marking . 12
27 8 Heating . 13
28 9 Basic operating function . 13
29 Magnetic interference . 13
30 Time parameters, contact resistance . 14
31 10 Dielectric strength . 14
32 Dielectric strength . 14
33 10.2.1 Requirements . 14
34 11 Electrical endurance . 14
35 Overload and endurance test . 15
36 Failure and malfunction criteria . 15
37 Final dielectric test . 15
38 12 Mechanical endurance . 15
39 13 Clearances, creepage distances and solid insulation . 15
40 General provisions . 15
41 14 Terminations . 15
42 15 Sealing . 15
43 16 Heat and fire resistance . 15
44 17 Short circuit capacity . 15
45 18 Vibration . 15
46 Procedure . 15
47 Requirements . 16

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48 19 Shock . 16
49 Procedure . 16
50 Requirements . 16
51 Annexes . 17
52 (normative) Explanation regarding reed contacts of reed relays . 18
53 Annex P (informative) High frequency characteristics test . 19
54 Annex Q (informative) Special tests – Tests for environmental category . 21
55 Annex R (informative) Special tests for railway applications – Rolling stock . 22
56 Bibliography . 25
57 Figure A.2 – Example explaining terms relating to reed contacts of reed relay . 18
58 Figure P.1 – Measurement circuit for scattering parameters measurement . 20
59 Table 1 – Insulation resistance . 10
60 Table 2 – Frequency range . 10
61 Table 3 – Type tests . 11
62 Table 4 – Routine tests . 11
63 Table 5 – Special relays data . 13
64 Table 6 – Dielectric voltage . 14
65 Table 7 – Vibration test conditions for storage . 16
66 Table 8 – Shock test conditions for storage. 16
67 Table R.1 – Special requirements for railway applications – rolling stock . 22
68 Table R.2 – Special tests for railway applications – rolling stock . 22

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69 INTERNATIONAL ELECTROTECHNICAL COMMISSION
70 ____________
71
72 ELECTROMECHANICAL ELEMENTARY RELAYS –
73
74 Part 4: Reed relays – General and safety requirements
75
76 FOREWORD
77 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
78 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
79 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
80 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
81 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
82 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
83 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
84 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
85 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
86 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
87 consensus of opinion on the relevant subjects since each technical committee has representation from all
88 interested IEC National Committees.
89 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
90 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
91 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
92 misinterpretation by any end user.
93 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
94 transparently to the maximum extent possible in their national and regional publications. Any divergence between
95 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
96 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
97 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
98 services carried out by independent certification bodies.
99 6) All users should ensure that they have the latest edition of this publication.
100 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
101 members of its technical committees and IEC National Committees for any personal injury, property damage or
102 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
103 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
104 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
105 indispensable for the correct application of this publication.
106 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
107 rights. IEC shall not be held responsible for identifying any or all such patent rights.
108 International Standard IEC 61810-4 has been prepared by IEC technical committee 94: All-or-
109 nothing electrical relays.
110 The text of this International Standard is based on the following documents:
CD CC
94/459/CD 94/463/CC
111
112 Full information on the voting for the approval of this International Standard can be found in the
113 report on voting indicated in the above table.
114 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
115 A list of all parts of IEC 61810 series and IEC 62246 series, published under the general title
116 Electromechanical elementary relays and Reed switches, can be found on the IEC website.
117 This International Standard is to be used in conjunction with IEC 61810-1, IEC 61810-2,
118 IEC 61810-2-1, IEC 61810-7, IEC 62246-1 and IEC 62246-1-1.

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119 The committee has decided that the contents of this document will remain unchanged until the
120 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
121 the specific document. At this date, the document will be
122 • reconfirmed,
123 • withdrawn,
124 • replaced by a revised edition, or
125 • amended.
126
127 The National Committees are requested to note that for this document the stability date is XX-
128 202X
129 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED
130 AT THE PUBLICATION STAGE.
131
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
132

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133 INTRODUCTION
134 Reed relays have been used in wide fields such as household and similar appliances, security
135 control systems for appliances, measuring instruments, medical equipment, semiconductor and
136 chip test equipment, information and communication equipment, power distribution facilities and
137 transit vehicles, etc.
138 This part of IEC 61810 series provides technical deviations/additions to the part 1 in order to
139 specify a general and safety requirements for reed relays from the relevant system and
140 component safety standards.
141 The reed switches are used as the switching contacts of the reed relays, all requirements for
142 reed contacts (reed switches) within the reed relay are conjunction with IEC 62246-series.

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143 ELECTROMECHANICAL ELEMENTARY RELAYS –
144
Part 4: Reed relays – General and safety requirements
145 1 Scope
146 This part of IEC 61810 applies to electromechanical elementary relays with reed switches (reed
147 contacts) incorporation into general control circuits. It defines the basic functional and safety
148 requirements in all areas of electrical engineering or electronics accordance with the parts of
149 IEC 61810 series and IEC 62246 series.
150 This document defines technical deviations/additions to the Part 1. It specifies type tests,
151 routine tests, special tests and environmental tests to confirm the service conditions for
152 applications.
153 Note: the terms reed switch(es) and reed contact(s) are both in use for the description of the contact set in reed
154 relays.
155 2 Normative references
156 The following documents are referred in the text in such a way that some or all of their content
157 constitutes requirements of this document. For dated references, only the edition cited applies.
158 For undated references, the latest edition of the referenced document (including any
159 amendments) applies.
160 IEC 60068-2-17:1994, Basic environmental testing procedures – Part 2-17: Tests – Test Q:
161 Sealing
162 IEC 61810-1:2015, Electromechanical elementary relays – Part 1: General and safety
163 requirements
164 IEC 61810-2:2017, Electromechanical elementary relays – Part 2: Reliability
165 IEC 61810-2-1:2017, Electromechanical elementary relays – Part 2-1: Reliability – Procedure
166 for the verification of B values
10
167 IEC 61810-7:2006, Electromechanical elementary relays – Part 7: Test and measurement
168 procedures
169 IEC 61810-10:2019, Electromechanical elementary relays – Part 10: Additional functional
170 aspects and safety requirements for high-capacity relays
171 IEC 62246-1:2015, Reed switches – Part 1: Generic specification
172 IEC 62246-1-1:2018, Reed switches – Part 1-1: Generic specification – Blank detail
173 specification
174 3 Terms and definitions
175 For the purposes of this document, the terms and definitions given in IEC 61810-1 and the
176 following apply.
177 ISO and IEC maintain terminological databases for use in standardization at the following
178 addresses:
179 • IEC Electropedia: available at http://www.electropedia.org/
180 • ISO Online browsing platform: available at http://www.iso.org/obp
181 Terms and definitions of relay types
182 Addition to IEC 61810-1:2015:

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183 3.2.10
184 reed relay
185 electromechanical control circuit devices with connecting terminals, consisting of reed switch
186 sets (reed contact sets) and coil fitting with/without a housing which could be plastic or metal
187 Note 1 to entry: see Figure A.2
188 [SOURCE: IEC 60050-444:2010, 444-01-04, modified – “reed relay” has been added in the
189 term and Note 1 to entry has been added.]
190 Terms and definitions of operating values
191 Addition to IEC 61810-1:2015:
192 3.4.8
193 magnetic interference
194 tendency of a relay to be influenced by the magnetic field from an adjacent energized relay or
195 any other surrounding solenoid
196 Note 1 to entry: this influence can result in depression or elevation of the operate and release voltage of the
197 affected relay, possibly causing them to fall outside their specification
198 Note 2 to entry: magnetic interference can be minimized by alternating the polarity of adjacent relay coils, by
199 magnetic shielding, or by placing two relays at right angles to each other.
200 Terms and definitions related to contacts
201 Addition to IEC 61810-1:2015:
202 3.5.23
203 frequency range,
204 set of frequencies over which an equipment can be adjusted to operate satisfactorily
205 Note 1 to entry: the frequency range of a relay can be subdivided into switched subranges which may or may not
206 be contiguous.
207 [SOURCE: IEC 60050-702:1992, 702-09-68, modified – “an equipment “ has been replace with
208 “a relay” in the “Note 1 to entry”]
209 3.5.24
210 capacitance,
211 ability to store an electric charge between contacts
212 [SOURCE: IEC 60050-131:2002, 131-12-13, modified – definition has been replaced with
213 “ability to store an electric charge between contact“]
214 3.5.25
215 capacitance,
216 ability to store an electric charge between contact and coil
217 Note 1 to entry: it may have adverse effects for use in high frequency signal transmission circuits of information
218 and communication equipment
219 [SOURCE: IEC 60050-131:2002, 131-12-13, modified – definition has been replaced with
220 “ability to store an electric charge between contact and coil”]
221 3.5.26
222 Impedance,
223 quotient of a voltage by a current for a passive linear two-terminal element or two-terminal
224 circuit with terminals A and B under sinusoidal conditions
225 [SOURCE: IEC 60050-131:2002, 131-12-43, modified – definition has been replaced]
226 3.5.27
227 isolation,
228 ratio of the power delivered to the output port of a relay, with open contacts, at a specific
229 frequency, compared to the power emitted from the corresponding output port

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230 3.5.28
231 insertion loss,
232 resulting from the insertion of a network into a transmission system, the ratio of the power delivered to
233 that part of the system following the network, before insertion of the network, to the power delivered to
234 that same part after insertion of the network
235 Note1 to entry: the insertion loss is generally expressed in decibels.
236 [SOURCE: IEC 60050-726:1982, 726-06-07]
237 3.5.29
238 return loss,
239 modulus of the reciprocal of the reflection factor, generally expressed in decibels
240 Note1 to entry: when impedances can be defined, the return loss is given by the formula:
Z−Z'
241 −20lgr= 20lg
Z+Z'
242 where Z is the characteristic impedance of a transmission line ahead of a discontinuity, or the
243 impedance of a source, and Z′ is the impedance after the discontinuity or the load impedance
244 seen from the junction between the source and the load
245 [SOURCE: IEC 60050-702:1992, 702-07-25]
246 3.5.30
247 repeatability,
248 closeness of agreement between the results of successive measurements of the same
249 measurand, carried out under the same conditions of measurement, i.e.:
250 – by the same measurement procedure;
251 – by the same observer;
252 – with the same measuring instruments, used under the same conditions;
253 – in the same laboratory;
254 – at relatively short intervals of time.
255 [SOURCE: IEC 60050-311:2001, 311-06-06, the Note has been omitted.]
256 4 Influence quantities
257 Clause 4 of IEC 61810-1 is applicable.
258 5 Rated values
259 Clause 5 of IEC 61810-1 is applicable with the following deviations/additions.
260 Rated coil voltage/rated coil voltage range
261 b) DC voltage, recommended values:
262 15 V; 32 V; 36 V; 50 V; 55 V; 64 V; 72 V; 87 V; 96 V.
263 Electrical endurance
264 Recommended number of cycles: 5 000; 10 000; 20 000; 50 000
5 5 6 6 6 7 7 7 8 8 8
265 1 × 10 ; 2 × 10 ; 1 × 10 ; 2 × 10 ; 5 × 10 ; 1 × 10 ; 2 × 10 ; 5 × 10 ; 1 × 10 ; 2 × 10 ; 5 × 10 ;
9 10
266 1 × 10 ; 1 × 10
267 Contact loads
268 a) Resistive loads, recommended values

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269 Current: 0,1 A; 0,2 A; 0,3 A; 0,5 A; 1 A; 2 A; 3 A; 5 A; 6 A; 8 A; 10 A; 12 A; 16 A; 20 A; 25 A;
270 30 A and submultiples thereof.
271 Voltage: 1 V; 3 V; 4,5 V; 5 V; 12 V; 24 V; 36 V; 42 V; 48 V; 110 V; 125 V; 230 V; 250 V;
272 300 V; 400 V; 480 V; 500 V; 690 V; 1 000 V (AC/DC); 1 500 V DC, 2 000 V DC, 3 000 V DC,
273 5 000 V DC, 7 000 V DC, 8 000 V DC, 10 000 V DC, 12 000 V DC and submultiples thereof.
274 b) Recommended inductive loads: see Annex F of IEC 62246-1:2015.
275 Note1 to entry: This Part 4 considers the higher values than 1 500 VDC that is scope of the Part 1.
276 Note2 to entry: Special requirement on withstand voltage for blocking inductive surge may be applied.
277 Note 3 to entry: The voltage values are recommended basing on clause 4.4 of IEC 62246-1: 2015.
278 Withstand voltage
279 Recommended withstand voltages: 30 V; 60 V; 125 V; 200 V; 330 V; 500 V; 800 V; 1 500 V;
280 2 500 V; 4 000 V; 7 000 V; 10 000 V; 15 000 V; 18 000 V.
281 Note 1 to entry: The voltage values are recommended basing on clause 4.4 of IEC 62246-1: 2015.
282 Insulation resistance
283 Recommended insulation resistance values are listed in Table 1.
284 Table 1 – Insulation resistance
Insulation resistance (Ω)
8 9 10 11 12 13 14 15
>10 > 10 > 10 > 10 > 10 > 10 > 10 > 10
285
286 Note 1 to entry: Test and measurement procedures for insulation resistance is accordance with clause 4.11 of
287 IEC 61810-7: 2007.
288 Frequency range
289 Recommended contact load frequency range can be specified according to Table 2.
290 Table 2 – Frequency range
Frequency range (Hz)
6
3 6
30 × 10 DC DC DC DC  DC DC
3 000 × 10 3 × 10
to to to to to to to
to to
6 6
6 8 9 9 9 10 10
3 × 10 30 × 10
300 × 10 1 × 10 2 × 10 4 × 10 7 × 10 1,5 × 10 2 × 10
291
292 6 General provisions for testing
293 Clause 6 of IEC 61810-1 is applicable with the following deviations/additions.
294 Kinds of test
295 Addition to IEC 61810-1:2015:
296 6.1.1 General
297 Tests shall be made to prove compliance with the requirements laid down in this document.
298 Tests are as follows:Table 1
299 - type tests which shall be made on representative samples of each particular reed relays;
300 - routine tests which shall be made on each individual piece of reed relays manufactured to
301 this standard;
302 - special tests which shall be made on subject to specification in according to agreement
303 between manufacturer and user.

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304 6.1.2 Type tests
305 The specimens shall be grouped in 11 inspection lots, and the related tests shall be taken from
306 Table 3 of this document.
307 Table 3 of this document replaces Table 3 of IEC 61810-1:2015.
308 Table 3 – Type tests
Inspection Tests Clause Additional references
lot
1 Marking and documentation 7 IEC 60417
Heating (typical coil voltage) 8 IEC 60085
Basic operating function (all coil voltages) 9
2 Dielectric strength 10
3 Electrical endurance (per contact load and contact material) 11
4 Mechanical endurance 12
5 Clearances, creepage distances and distances through solid 13 IEC 60664-1
insulation
6 Terminations 14
Sealing (if applicable) 15 IEC 60068-2-17
7 Heat and fire resistance 16 IEC 60695-2-10
8 Short-circuit capacity (if applicable) 17
9 Vibration test (if applicable) 18 IEC 60068-2-6
10 Shock test (if applicable) 19 IEC 60068-2-27
11 High frequency characteristics (if applicable) Annex P
309
310 In the subsequence clauses, the requirements to be checked as well as the related tests are
311 specified. The routine tests shall be taken from Table 4.
312 6.1.3 Routine tests
313 Table 4 of this document replaces Table 4 of IEC 61810-1:2015.
314 Table 4 – Routine tests
Inspection
Test Clause Additional references
lot
e
all Marking and documentation 7 Table 6 of IEC 61810-1: 1a; 1b; 1c
e a b
all Basic operating functions 9 Mode II applies
e c
all Sealing (option) 15 IEC 60068-2-17 or IEC 62246-1-1
e d
all Dielectric strength 10.2 -
315

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316 Table 4 – Routine tests (continued)
a
 The preconditioning within table 11 of IEC 61810-1 for operate as well as release does not apply.
For routine testing clause 9.2.2 of IEC 61810-1 could be handled via 9.2.1 of IEC 61810-1.
As these tests is usually carried out at room temperature the manufacturer has to specify an appropriate level
for the operate or r
...

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