SIST EN 61810-1:2008

SLOVENSKI STANDARD
SIST EN 61810-1:2008
01-september-2008
1DGRPHãþD
SIST EN 61810-1:2004
Elektromehanski osnovni releji - 1. del: Splošne zahteve (IEC 61810-1:2008)
Electromechanical elementary relays - Part 1: General requirements
Elektromechanische Elementarrelais (elektromechanische Schaltrelais ohne festgelegtes
Zeitverhalten) - Teil 1: Allgemeine Anforderungen
Relais électromécaniques élémentaires - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: EN 61810-1:2008
ICS:
29.120.70 Releji Relays
SIST EN 61810-1:2008 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61810-1:2008

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SIST EN 61810-1:2008

EUROPEAN STANDARD
EN 61810-1

NORME EUROPÉENNE
June 2008
EUROPÄISCHE NORM

ICS 29.120.70 Supersedes EN 61810-1:2004


English version


Electromechanical elementary relays -
Part 1: General requirements
(IEC 61810-1:2008)


Relais électromécaniques élémentaires - Elektromechanische Elementarrelais -
Partie 1: Exigences générales Teil 1: Allgemeine Anforderungen
(CEI 61810-1:2008) (IEC 61810-1:2008)




This European Standard was approved by CENELEC on 2008-05-01. 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 Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and 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
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61810-1:2008 E

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SIST EN 61810-1:2008
EN 61810-1:2008 - 2 -
Foreword
The text of document 94/267/FDIS, future edition 3 of IEC 61810-1, prepared by IEC TC 94,
All-or-nothing electrical relays, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 61810-1 on 2008-05-01.
This European Standard supersedes EN 61810-1:2004.
The relevant modifications compared to EN 61810-1:2004 are:
– update of references;
– renumbering of clauses to bring them into a more logical order;
– inclusion of contact load categories (same as in EN 61810-2 and EN 61810-7);
– clarifications concerning electrical endurance (Clause 11);
– inclusion of provisions for insulation coordination in accordance with the basic safety standards
EN 60664-3, EN 60664-4 and EN 60664-5 (Clause 13);
– renumbering of all annexes in the order they are referenced in the body of the standard;
– inclusion of new Annex C (normative) for the test set-up, and new Annex D (informative) for special
loads (based upon similar annexes in EN 61810-2 and EN 61810-7);
– improvement of Annex B covering inductive contact loads.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61810-1:2008 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 60335-1 + A1 NOTE  Harmonized as EN 60335-1:2002 (modified) + A1:2004 (not modified) .
IEC 60695-11-5 NOTE  Harmonized as EN 60695-11-5:2005 (not modified).
IEC 60730-1 + A1 NOTE  Harmonized as EN 60730-1:1995 (modified) + A1:1997 (modified).
IEC 60947-5-1 NOTE  Harmonized as EN 60947-5-1:2004 (not modified).
IEC 60950-1 NOTE  Harmonized as EN 60950-1:2006 (modified).
___________

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SIST EN 61810-1:2008
- 3 - EN 61810-1:2008

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

1)
IEC 60038 (mod) 1983 IEC standard voltages HD 472 S1 1989
- - + corr. February 2002
- - A1 1995
A1 1994
A2 1997


IEC 60050 Series International Electrotechnical Vocabulary - -
(IEV)


IEC 60068-2-2 2007 Environmental testing - EN 60068-2-2 2007
Part 2-2: Tests - Test B: Dry heat


IEC 60068-2-17 1994 Environmental testing - EN 60068-2-17 1994
Part 2: Tests - Test Q: Sealing


IEC 60068-2-20 1979 Environmental testing -
+ A2 1987 Part 2: Tests - Test T: Soldering HD 323.2.20 S3 1988


2)
IEC 60085 2004 Electrical insulation - Thermal classification EN 60085 2004


IEC 60112 2003 Method for the determination of the proof EN 60112 2003
and the comparative tracking indices of solid
insulating materials


IEC 60364-4-44 2007 Low voltage electrical installations - - -
Part 4-44: Protection for safety - Protection
against voltage disturbances and
electromagnetic disturbances


IEC 60417 Data- Graphical symbols for use on equipment - -
base


IEC 60664-1 2007 Insulation coordination for equipment within EN 60664-1 2007
low-voltage systems -
Part 1: Principles, requirements and tests


IEC 60664-3 2003 Insulation coordination for equipment within EN 60664-3 2003
low-voltage systems -
Part 3: Use of coating, potting or moulding for
protection against pollution


IEC 60664-4 2005 Insulation coordination for equipment within EN 60664-4 2006
low-voltage systems - + corr. October 2006
Part 4: Consideration of high-frequency
voltage stress



1)
The title of HD 472 S1 is: Nominal voltages for low voltage public electricity supply systems.
2)

EN 60085 is superseded by EN 60085:2008, which is based on IEC 60085:2007.

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SIST EN 61810-1:2008
EN 61810-1:2008 - 4 -

Publication Year Title EN/HD Year

IEC 60664-5 2007 Insulation coordination for equipment within EN 60664-5 2007
low-voltage systems -
Part 5: Comprehensive method for
determining clearances and creepage
distances equal to or less than 2 mm


IEC 60695-2-10 2000 Fire hazard testing - EN 60695-2-10 2001
Part 2-10: Glowing/hot-wire based test
methods - Glow-wire apparatus and common
test procedure


IEC 60695-2-11 2000 Fire hazard testing - EN 60695-2-11 2001
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for end-products


IEC 60695-2-12 2000 Fire hazard testing - EN 60695-2-12 2001
Part 2-12: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for materials


IEC 60695-2-13 2000 Fire hazard testing - EN 60695-2-13 2001
Part 2-13: Glowing/hot-wire based test
methods - Glow-wire ignitability test method
for materials


IEC 60695-10-2 2003 Fire hazard testing - EN 60695-10-2 2003
Part 10-2: Abnormal heat - Ball pressure test


IEC 60721-3-3 1994 Classification of environmental conditions - EN 60721-3-3 1995
A1 1995 Part 3: Classification of groups of - -
A2 1996 environmental parameters and their A2 1997
severities -
Section 3: Stationary use at weatherprotected
locations


IEC 60999-1 1999 Connecting devices - Electrical copper EN 60999-1 2000
conductors - Safety requirements for
screw-type and screwless-type clamping
units -
Part 1: General requirements and particular
requirements for clamping units for conductors
from 0,2 mm² up to 35 mm² (included)


IEC 61210 (mod) 1993 Connecting devices - Flat quick-connect EN 61210 1995
terminations for electrical copper conductors -
Safety requirements


IEC 61760-1 2006 Surface mounting technology - EN 61760-1 2006
Part 1: Standard method for the specification
of surface mounting components (SMDs)


IEC 61984 2001 Connectors - Safety requirements and tests EN 61984 2001

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SIST EN 61810-1:2008
IEC 61810-1
Edition 3.0 2008-02
INTERNATIONAL
STANDARD


Electromechanical elementary relays –
Part 1: General requirements


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 29.120.70 ISBN 2-8318-9586-3

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SIST EN 61810-1:2008
– 2 – 61810-1 © IEC:2008(E)
CONTENTS
FOREWORD.5

1 Scope.7
2 Normative references .7
3 Terms and definitions .8
3.1 Definitions related to general terms .9
3.2 Definitions of relay types .9
3.3 Definitions related to conditions and operations.10
3.4 Definitions of operating values .12
3.5 Definitions related to contacts .13
3.6 Definitions related to accessories .16
3.7 Definitions related to insulation .16
4 Influence quantities .18
5 Rated values .18
5.1 Rated coil voltage/rated coil voltage range .18
5.2 Operative range .19
5.3 Release.19
5.4 Reset .19
5.5 Electrical endurance.19
5.6 Frequency of operation.19
5.7 Contact loads .20
5.8 Ambient temperature .20
5.9 Categories of environmental protection .20
5.10 Duty factor .20
6 General provisions for testing .20
7 Documentation and marking .22
7.1 Data .22
7.2 Additional data .23
7.3 Marking .23
7.4 Symbols .23
8 Heating .24
8.1 Requirements.24
8.2 Test procedure .25
8.3 Terminals .26
8.3.1 General .26
8.3.2 Solder terminals .26
8.3.3 Flat quick-connect terminations .26
8.3.4 Screw and screwless type terminals .27
8.3.5 Alternative termination types .27
8.3.6 Sockets .27
9 Basic operating function .27
9.1 General test conditions.27
9.2 Operate (monostable relays) .27
9.3 Release (monostable relays) .28
9.4 Operate/reset (bistable relays) .28
10 Insulation resistance and dielectric strength .28

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SIST EN 61810-1:2008
61810-1 © IEC:2008(E) – 3 –
10.1 Preconditioning .28
10.2 Insulation resistance .28
10.3 Dielectric strength .28
11 Electrical endurance.30
12 Mechanical endurance.32
13 Clearances, creepage distances and solid insulation .32
13.1 General provisions .32
13.2 Clearances and creepage distances .33
13.3 Solid insulation.37
13.4 Accessible surfaces.37
14 Terminations .37
14.1 Screw terminals and screwless terminals .38
14.2 Flat quick-connect terminations .38
14.3 Solder terminals .38
14.3.1 Resistance to soldering heat .38
14.3.2 Solder pins .38
14.3.3 Terminals for surface mounting (SMD).38
14.3.4 Other solder terminations (e.g. soldering lugs) .38
14.4 Sockets .38
14.5 Alternative termination types .39
15 Sealing.39
16 Heat and fire resistance.39

Annex A (normative) Explanations regarding relays .40
Annex B (informative) Inductive contact loads.43
Annex C (normative) Test set-up .45
Annex D (informative) Special loads .49
Annex E (normative) Heating test arrangement.52
Annex F (normative) Measurement of clearances and creepage distances.53
Annex G (normative) Relation between rated impulse voltage, nominal voltage and
overvoltage category .59
Annex H (normative) Pollution degrees .60
Annex I (normative) Proof tracking test .61
Annex J (informative) Schematic diagram of families of terminations .62
Annex K (normative) Glow-wire test .63
Annex L (normative) Ball pressure test .64
Annex M (informative) Needle flame test.65

Alphabetical list of terms.66
Bibliography.67

Figure A.1 – Diagram explaining terms related to monostable relays .40
Figure A.2 – Example explaining terms relating to contacts.41
Figure A.3 – Explanations regarding the operative range of the coil voltage.41
Figure A.4 – Explanation regarding the preconditioning and testing of the operate
voltage according to 5.2.1 (Class 1) and 9.2 .42

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SIST EN 61810-1:2008
– 4 – 61810-1 © IEC:2008(E)
Figure A.5 – Explanation regarding the preconditioning and testing of the operate
voltage according to 5.2.2 and 9.2 .42
Figure C.1 – Standard test circuit.45
Figure C.2 – Functional block diagram .46
Figure C.3 – Contact load categories .48
Figure D.1 – Circuit for cable load.49
Figure D.2 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
tungsten filament lamp loads) – AC circuits.50
Figure D.3 – Example for a tungsten filament lamp test for relays rated 10/100 A/250
V~/2,5 ms .50
Figure D.4 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
lamp loads) – DC circuits .51
Figure D.5 – Test circuit for inrush current loads (e.g. simulated fluorescent lamp
loads) with power-factor correction .51
Figure E.1 – Test arrangement .52
Figure J.1 – Schematic diagram of families of terminations.62
Figure L.1 – Ball pressure test apparatus.64

Table 1 – Reference values of influence quantities .18
Table 2 – Categories of protection .20
Table 3 – Type testing .21
Table 4 – Required relay data.22
Table 5 – Symbols .24
Table 6 – Examples for indication of rated values .24
Table 7 – Thermal classification.24
Table 8 – Cross-sectional areas and lengths of conductors dependent on the current
carried by the terminal .26
Table 9 – Minimum values of insulation resistance.28
Table 10 – Dielectric strength – AC.29
Table 11 – Dielectric strength – DC .30
Table 12 – Schematics for contact loading.31
Table 13 – Provisions for the dimensioning of clearances and creepage distances .34
Table 14 – Minimum clearances in air for insulation coordination .35
Table 15 – Material groups .35
Table 16 – Minimum creepage distances for equipment subject to long-term stresses .36
Table 17 – Rated insulation voltage according to supply system voltage.37
Table 18 – Test conditions for test Tb .38
Table B.1 – Verification of the making and breaking capacity (abnormal conditions) .43
Table B.2 – Verification of the making and breaking capacity (normal conditions) .44
Table B.3 – Electrical endurance test.44
Table C.1 – Characteristics of power sources for contact loads .46
Table C.2 – Standard contact load characteristics .47
Table G.1 – Rated impulse voltage for equipment energized directly from the low-
voltage mains .59

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SIST EN 61810-1:2008
61810-1 © IEC:2008(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTROMECHANICAL ELEMENTARY RELAYS –

Part 1: General requirements


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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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
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the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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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.
International Standard IEC 61810-1 has been prepared by IEC technical committee 94: All-or-
nothing electrical relays.
This third edition cancels and replaces the second edition published in 2003. This edition
constitutes a technical revision.
The relevant modifications are:
– update of references;
– renumbering of clauses to bring them into a more logical order;
– inclusion of contact load categories (same as in IEC 61810-2 and IEC 61810-7);
– clarifications concerning electrical endurance (Clause 11);
– inclusion of provisions for insulation coordination in accordance with the basic safety
standards IEC 60664-3, IEC 60664-4 and IEC 60664-5 (Clause 13);
– renumbering of all annexes in the order they are referenced in the body of the standard;
– inclusion of new Annex C (normative) for the test set-up, and new Annex D (informative)
for special loads (based upon similar annexes in IEC 61
...