EN 61810-1:2015
(Main)Electromechanical elementary relays - Part 1: General and safety requirements
Electromechanical elementary relays - Part 1: General and safety requirements
IEC 61810-1:2015 applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1 000 V alternate current or 1 500 V direct current). It defines the basic functional and safety requirements and safety-related aspects for applications in all areas of electrical engineering or electronics, such as: general industrial equipment, electrical facilities, electrical machines, electrical appliances for household and similar use, information technology and business equipment, building automation equipment, automation equipment, electrical installation equipment, medical equipment, control equipment, telecommunications, vehicles, transportation (e.g. railways). Compliance with the requirements of this standard is verified by the type tests indicated. In case the application of a relay determines additional requirements exceeding those specified in this standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s). This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - two main test procedures were introduced: procedure A, reflecting the procedure known from Edition 3 of this standard and procedure B, reflecting the assessment according to North American requirements; - inclusion of dedicated device application tests especially relevant for applications in the North American Market (see Clause D.1); - introduction of testing under single mounting condition; - clarification of insulation requirements after endurance testing; - inclusion of provisions for basic safety requirements; - update of references.
Elektromechanische Elementarrelais - Teil 1: Allgemeine und Sicherheitsanforderungen
Relais électromécaniques élémentaires - Partie 1: Exigences générales et de sécurité
L'IEC 61810-1:2015 s'applique aux relais électromécaniques élémentaires (relais de tout ou rien à temps non spécifié) destinés à être incorporés dans des matériels basse tension (circuits jusqu'à 1 000 V en courant alternatif ou 1 500 V en courant continu). Elle définit les exigences fondamentales fonctionnelles et de sécurité ainsi que les aspects liés à la sécurité, destinés à être appliqués dans tous les domaines de l'électrotechnique ou de l'électronique, tels que: l'équipement industriel général, les installations électriques, les machines électriques, les appareils électriques pour usages domestiques et analogues, les matériels de traitement de l'information et les matériels de bureau, les automatismes du bâtiment, les appareils d'automatisme, les appareils pour installations électriques, les appareils médicaux, le matériel de contrôle, les télécommunications, les véhicules, le transport (par exemple, chemins de fer). La conformité aux exigences de la présente norme est vérifiée par les essais de type indiqués. Au cas où l'application d'un relais détermine des exigences supplémentaires dépassant celles spécifiées dans la présente norme, il convient que le relais soit évalué par rapport à cette application, conformément à la ou aux normes IEC correspondantes. Cette quatrième édition annule et remplace la troisième édition parue en 2008. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - introduction de deux procédures d essai principales: procédure A qui reflète la procédure de l'édition 3 de la présente norme et procédure B qui reflète l'évaluation réalisée conformément aux exigences nord-américaines; - inclusion d'essais pour des appareils dédiés à des applications particulièrement appropriées aux applications sur le marché nord-américain (voir Article D.1); - introduction des essais dans des conditions de montage simple; - clarification des exigences d'isolation après les essais d'endurance; - inclusion de dispositions applicables aux exigences de sécurité de base; - mise à jour des références.
Elektromehanski osnovni releji - 1. del: Splošne in varnostne zahteve (IEC 61810-1:2015)
Ta del standarda IEC 61810 se uporablja za elektromehanske osnovne releje (neopredeljene časovne stikalne releje) za vgradnjo v nizkonapetostno opremo (tokokrogi do 1000 V izmeničnega toka ali 1500 C enosmernega toka). Določa osnovne funkcionalne in varnostne zahteve ter z varnostjo povezane vidike za uporabe na vseh področjih elektroinženiringa ali elektronike, kot so:
• splošna industrijska oprema,
• električni objekti,
• električni stroji,
• električni aparati za gospodinjsko in podobno uporabo,
• informacijska tehnologija in poslovna oprema,
• gradbena avtomatizacijska oprema,
• avtomatizacijska oprema,
• električna namestitvena oprema,
• medicinska oprema,
• nadzorna oprema,
• telekomunikacije,
• vozila,
• prevoz (npr. železnice).
Skladnost z zahtevami iz tega standarda se preveri z navedenimi tipskimi preskusi. Če uporaba releja določa dodatne zahteve, ki presegajo zahteve iz tega standarda, je treba rele oceniti v skladu s to uporabo glede na skladnost z ustreznimi standardi IEC (npr. IEC 60730-1, IEC 60335-1, IEC 60950-1).
General Information
Relations
Overview
EN 61810-1:2015 (identical to IEC 61810-1:2015) specifies general and safety requirements for electromechanical elementary relays - non-specified-time, all‑or‑nothing relays - intended for incorporation into low-voltage equipment (circuits up to 1 000 V AC or 1 500 V DC). The standard defines basic functional, insulation and safety-related requirements and prescribes type tests to verify compliance. It addresses relays used across many sectors of electrical engineering and electronics including industrial equipment, building automation, medical devices, telecommunications, transportation and vehicles.
Key topics and technical requirements
- Scope & relay types: Applies to electromechanical elementary relays (non‑time relays) for low‑voltage systems and a wide range of application areas.
- Functional and safety requirements: Defines rated values, operating ranges (operate, release, reset), and requirements for basic safety functions.
- Test procedures / Type tests: Compliance is verified by specified type tests. Edition 4 introduces two main test procedures:
- Procedure A - follows earlier Edition 3 assessment.
- Procedure B - reflects North American assessment requirements and includes dedicated device application tests.
- Environmental and mounting: Includes provisions for testing under a single mounting condition and defines influence quantities (temperature, humidity, pollution).
- Insulation and dielectric strength: Clarifies insulation requirements after endurance testing, solid insulation provisions, and dielectric test conditions.
- Endurance & reliability: Requirements and tests for electrical endurance, mechanical endurance, heating, and contact performance; failure and malfunction criteria are specified.
- Clearances and creepage: Specifies requirements for clearances, creepage distances and solid insulation consistent with low‑voltage insulation coordination.
- Terminations and soldering: Guidance on terminal types (screw, screwless, solder, quick‑connect), solderability and resistance to soldering heat.
- Documentation & marking: Data, additional data, symbols and marking requirements for safe use and traceability.
Applications and who uses this standard
EN 61810-1:2015 is used by:
- Relay manufacturers for product design, testing and type certification.
- Product safety and compliance engineers to demonstrate conformity for low‑voltage equipment.
- Test laboratories and certification bodies executing type tests.
- OEMs and equipment designers in industrial automation, building control, medical devices, telecoms, rail/transportation and vehicle electronics to select and validate relays.
- Procurement and quality assurance teams for suppliers’ compliance checks.
Related standards
EN 61810-1 references and aligns with several IEC/CENELEC standards relevant to insulation, fire hazard testing and installation, for example:
- IEC/EN 60664‑1 (insulation coordination)
- IEC/EN 60695 series (fire hazard / glow‑wire tests)
- IEC/EN 60947‑5‑1 (relay contact requirements)
- Other referenced standards cover environmental testing, terminations and safety (see EN 61810-1 bibliography).
Keywords: EN 61810-1:2015, electromechanical elementary relays, relay safety requirements, low-voltage relays, type tests, insulation, electrical endurance, CENELEC.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2015
1DGRPHãþD
SIST EN 61810-1:2008
Elektromehanski osnovni releji - 1. del: Splošne in varnostne zahteve (IEC 61810-
1:2015)
Electromechanical elementary relays - Part 1: General and safety requirements (IEC
61810-1:2015)
Electromechanical elementary relays - Part 1: General and safety requirements (IEC
61810-1:2015)
Relais électromécaniques élémentaires - Partie 1: Exigences générales et de sécurité
(IEC 61810-1:2015)
Ta slovenski standard je istoveten z: EN 61810-1:2015
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 61810-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2015
ICS 29.120.70 Supersedes EN 61810-1:2008
English Version
Electromechanical elementary relays -
Part 1: General and safety requirements
(IEC 61810-1:2015)
Relais électromécaniques élémentaires - Elektromechanische Elementarrelais -
Partie 1: Exigences générales et de sécurité Teil 1: Allgemeine und Sicherheitsanforderungen
(IEC 61810-1:2015) (IEC 61810-1:2015)
This European Standard was approved by CENELEC on 2015-04-01. 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61810-1:2015 E
Foreword
The text of document 94/380/FDIS, future edition 4 of IEC 61810-1, prepared by
IEC/TC 94 “All-ornothing electrical relays” was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 61810-1:2015.
The following dates are fixed:
(dop) 2016-01-01
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-04-01
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61810-1:2008.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61810-1:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC 60335-1:2010 NOTE Harmonized as EN 60335-1:2012 (modified).
1)
IEC 60664-1:1992 NOTE Harmonized as EN 60664-1:2003 (not modified).
IEC 60695-11-5:2004 NOTE Harmonized as EN 60695-11-5:2005 (not modified).
IEC 60669-1 NOTE Harmonized as EN 60669-1.
2)
IEC 60730-1:2013 NOTE Harmonized as EN 60730-1 (modified).
IEC 60947-5-1:2003 NOTE Harmonized as EN 60947-5-1:2004 (not modified).
IEC 60950-1:2005 NOTE Harmonized as EN 60950-1:2006 (modified).
IEC 61140:2001 NOTE Harmonized as EN 61140:2002 (not modified).
IEC 61508 Series NOTE Harmonized as EN 61508 Series.
IEC 61810-7:2006 NOTE Harmonized as EN 61810-7:2006 (not modified).
3)
ISO 14121-1 NOTE Harmonized as EN ISO 14121-1 .
ISO 14971 NOTE Harmonized as EN ISO 14971.
1)
Superseded by EN 60664-1:2007 (IEC 60664-1:2007).
2)
To be published.
3)
Superseded by EN ISO 12100 (ISO 12100).
- 3 - EN 61810-1:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 When 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 60038 (mod) 2009 IEC standard voltages EN 60038 2011
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 Basic environmental testing procedures - EN 60068-2-17 1994
Part 2-17: Tests - Test Q: Sealing
IEC 60068-2-20 2008 Environmental testing - EN 60068-2-20 2008
Part 2-20: Tests - Test T: Test methods for
solderability and resistance to soldering
heat of devices with leads
IEC 60079-15 2010 Explosive atmospheres - EN 60079-15 2010
Part 15: Equipment protection by type of
protection "n"
IEC 60085 2007 Electrical insulation - Thermal evaluation EN 60085 2008
and designation
IEC 60099-1 - Surge arresters - EN 60099-1 -
Part 1: Non-linear resistor type gapped
surge arresters for a.c. systems
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 - HD 60364-4-442 2012
(mod) Part 4-44: Protection for safety - Protection
against voltage disturbances and
electromagnetic disturbances
IEC 60417-DB - Graphical symbols for use on equipment - -
IEC 60664-1 2007 Insulation coordination for equipment EN 60664-1 2007
within low-voltage systems -
Part 1: Principles, requirements and tests
Publication Year Title EN/HD Year
IEC 60664-3 2003 Insulation coordination for equipment EN 60664-3 2003
within low-voltage systems -
Part 3: Use of coating, potting or moulding
for protection against pollution
IEC 60664-4 2005 Insulation coordination for equipment EN 60664-4 2006
within low-voltage systems - + corr. October 2006
Part 4: Consideration of high-frequency
voltage stress
IEC 60664-5 2007 Insulation coordination for equipment EN 60664-5 2007
within low-voltage systems -
Part 5: Comprehensive method for
determining clearances and creepage
distances equal to or less than 2 mm
IEC 60695-2-10 2013 Fire hazard testing - EN 60695-2-10 2013
Part 2-10: Glowing/hot-wire based test
methods - Glow-wire apparatus and
common test procedure
1)
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 2010 Fire hazard testing - EN 60695-2-12 2010
Part 2-12: Glowing/hot-wire based test
methods - Glow-wire flammability index
(GWFI) test method for materials
IEC 60695-2-13 2010 Fire hazard testing - EN 60695-2-13 2010
Part 2-13: Glowing/hot-wire based test
methods - Glow-wire ignition temperature
(GWIT) test method for materials
2)
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
- Part 3: Classification of groups of
+A1 1995 - -
environmental parameters and their
+A2 1996 +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)
1)
Superseded by EN 60695-2-11:2014 (IEC 60695-2-11:2014): dow = 2017-03-13.
2)
Superseded by EN 60695-10-2:2014 (IEC 60695-10-2:2014): dow = 2017-03-26.
- 5 - EN 61810-1:2015
Publication Year Title EN/HD Year
IEC 61210 (mod) 2010 Connecting devices - Flat quick-connect EN 61210 2010
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 2008 Connectors - Safety requirements and EN 61984 2009
tests
IEC 61810-1 ®
Edition 4.0 2015-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electromechanical elementary relays –
Part 1: General and safety requirements
Relais électromécaniques élémentaires –
Partie 1: Exigences générales et de sécurité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-2322-2
– 2 – IEC 61810-1:2015 © IEC 2015
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
3.1 Terms and definitions related to general terms . 11
3.2 Terms and definitions of relay types . 12
3.3 Terms and definitions related to conditions and operations . 13
3.4 Terms and definitions of operating values . 15
3.5 Terms and definitions related to contacts . 16
3.6 Terms and definitions related to accessories. 19
3.7 Terms and definitions related to insulation . 19
4 Influence quantities . 21
5 Rated values . 22
5.1 General . 22
5.2 Rated coil voltage/rated coil voltage range . 22
5.3 Operative range . 22
5.4 Release . 23
5.5 Reset . 23
5.6 Electrical endurance . 23
5.7 Frequency of operation . 23
5.8 Contact loads . 23
5.9 Ambient temperature . 24
5.10 Categories of environmental protection . 24
5.11 Duty factor . 24
6 General provisions for testing . 24
7 Documentation and marking . 27
7.1 Data . 27
7.2 Additional data . 28
7.3 Marking . 28
7.4 Symbols . 29
8 Heating . 29
8.1 Requirements . 29
8.2 Test set-up . 30
8.3 Test procedure. 31
8.4 Terminals . 31
8.4.1 General . 31
8.4.2 Solder terminals . 32
8.4.3 Flat quick-connect terminations . 32
8.4.4 Screw and screwless type terminals . 33
8.4.5 Alternative termination types . 33
8.4.6 Sockets . 33
9 Basic operating function . 33
9.1 General test conditions . 33
9.2 Operate (monostable relays) . 33
9.2.1 Operate with (constant) coil voltage . 34
IEC 61810-1:2015 © IEC 2015 – 3 –
9.2.2 Operate with PWM and/or other operating methods . 35
9.3 Operate/reset (bistable relays) . 35
10 Dielectric strength . 35
10.1 Preconditioning . 35
10.2 Dielectric strength . 36
10.3 Special cases for test procedure B . 37
11 Electrical endurance . 38
11.1 General . 38
11.2 Overload and endurance test . 39
11.3 Failure and malfunction criteria . 39
11.4 Final dielectric test . 39
12 Mechanical endurance . 41
13 Clearances, creepage distances and solid insulation . 42
13.1 General provisions . 42
13.2 Clearances and creepage distances. 43
13.3 Solid insulation . 47
13.4 Accessible surfaces . 47
13.5 Solid insulation in the coil assembly as part of the insulation coordination . 48
14 Terminations . 48
14.1 General . 48
14.2 Screw terminals and screwless terminals . 48
14.3 Flat quick-connect terminations . 48
14.4 Solder terminals . 48
14.4.1 Resistance to soldering heat . 48
14.4.2 Solder pins . 49
14.4.3 Terminals for surface mounting (SMD) . 49
14.4.4 Other solder terminations (e.g. soldering lugs) . 49
14.5 Sockets . 49
14.6 Alternative termination types . 49
15 Sealing . 50
16 Heat and fire resistance . 50
Annex A (normative) Explanations regarding relays . 51
Annex B (informative) Inductive contact loads . 54
Annex C (normative) Test set-up . 58
C.1 Test circuit . 58
C.2 Description and requirements . 60
C.2.1 Power source for coil energization . 60
C.2.2 Switching (coil control) device . 60
C.2.3 Power source for contact loads . 60
C.2.4 Control device . 60
C.2.5 Measuring and indicating device . 61
C.3 Test schematic. 61
C.4 Contact load categories (CC) . 61
C.5 Special loads . 61
Annex D (informative) Special loads . 62
D.1 Dedicated device application tests and test sequences . 62
D.2 Special loads for telecom and signal relays . 68
– 4 – IEC 61810-1:2015 © IEC 2015
D.3 Special loads with inrush current . 69
Annex E (normative) Heating test arrangement . 72
Annex F (normative) Measurement of clearances and creepage distances . 73
Annex G (normative) Relation between rated impulse voltage, nominal voltage and
overvoltage category . 78
Annex H (normative) Pollution degrees . 80
Annex I (normative) Proof tracking test . 81
Annex J (informative) Schematic diagram of families of terminations . 82
Annex K (normative) Glow-wire test . 83
Annex L (normative) Ball pressure test . 84
Annex M (informative) Needle flame test . 86
Annex N (informative) Resistance for standard soldering processes . 87
N.1 General . 87
N.2 Double wave soldering process . 87
N.2.1 Profile . 87
N.2.2 Conditions . 87
N.3 SMT and through hole reflow (THR) soldering process. 88
N.3.1 Profile . 88
N.3.2 Conditions . 88
N.4 Evaluation . 88
Annex O (informative) Risk assessment . 89
O.1 General . 89
O.2 Risk assessment procedure . 89
O.3 Achieving tolerable risk . 90
O.4 An application of risk assessment procedures (proposal for the user) . 91
Alphabetical list of terms . 93
Bibliography . 94
Figure A.1 – Diagram explaining terms related to monostable relays . 51
Figure A.2 – Example explaining terms relating to contacts. 52
Figure A.3 – Explanations regarding the operative range of the coil voltage . 52
Figure A.4 – Explanation regarding the preconditioning and testing of the operate
voltage according to 5.3.1 (Class 1) and 9.2 . 53
Figure A.5 – Explanation regarding the preconditioning and testing of the operate
voltage according to 5.3.2 and 9.2 . 53
Figure C.1 – Standard test circuit . 58
Figure C.2 – Functional block diagram . 59
Figure C.3 – Contact load categories . 61
Figure D.1 – Typical test circuit diagram . 67
Figure D.2 – Waveform per synthetic measurement of pulse width and peak current . 68
Figure D.3 – Circuit for cable load . 68
Figure D.4 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
tungsten filament lamp loads) – AC circuits. 69
Figure D.5 – Example for a tungsten filament lamp test for relays rated 10/100 A/250
V~/2,5 ms . 70
IEC 61810-1:2015 © IEC 2015 – 5 –
Figure D.6 – Test circuit for inrush current loads (e.g. capacitive loads and simulated
lamp loads) – DC circuits . 70
Figure D.7 – Test circuit for inrush current loads (e.g. simulated fluorescent lamp
loads) with power-factor correction . 71
Figure E.1 – Test arrangement . 72
Figure F.1 – Example 1 . 73
Figure F.2 – Example 2 . 73
Figure F.3 – Example 3 . 74
Figure F.4 – Example 4 . 74
Figure F.5 – Example 5a and 5b . 74
Figure F.6 – Example 6a and 6b . 75
Figure F.7 – Example 7a and 7b . 75
Figure F.8 – Example 8a and 8b . 76
Figure F.9 – Example 9 . 76
Figure F.10 – Example 10 . 77
Figure F.11 – Example 11 . 77
Figure J.1 – Schematic diagram of families of terminations . 82
Figure L.1 – Ball pressure test apparatus . 85
Figure N.1 – Double wave soldering profile . 87
Figure N.2 – SMT and through hole soldering profile . 88
Figure O.1 – Iterative process of risk assessment and risk reduction . 89
Figure O.2 – Risk reduction . 90
Table 1 – Reference values of influence quantities . 22
Table 2 – Categories of protection . 24
Table 3 – Type testing . 26
Table 4 – Routine tests . 26
Table 5 – Number of test samples . 26
Table 6 – Required relay data (1 of 2) . 27
Table 7 – Symbols . 29
Table 8 – Examples for indication of rated values . 29
Table 9 – Thermal classification . 30
Table 10 – Cross-sectional areas and lengths of conductors dependent on the current
carried by the terminal . 32
Table 11 – Operate and release with constant coil voltages . 34
Table 12 – Operate and release with PWM and/or other operating methods . 35
Table 13 – Dielectric strength – AC . 36
Table 14 – Dielectric strength – DC . 37
Table 15 – Electrical endurance test procedures . 39
Table 16 – Schematics for contact loading . 40
Table 17 – Provisions for the dimensioning of clearances and creepage distances . 43
Table 18 – Minimum clearances in air for insulation coordination . 45
Table 19 – Material groups . 45
Table 20 – Minimum creepage distances for equipment subject to long-term stresses . 46
– 6 – IEC 61810-1:2015 © IEC 2015
Table 21 – Rated insulation voltage according to supply system voltage . 47
Table 22 – Test conditions for test Tb . 49
Table B.1 – Verification of the making and breaking capacity (abnormal conditions) . 55
Table B.2 – Verification of the making and breaking capacity (normal conditions) . 56
Table B.3 – Electrical endurance test . 56
Table B.4 – Contact rating designations and equivalency to utilization categories . 57
Table C.1 – Characteristics of power sources for contact loads . 59
Table C.2 – Standard contact load characteristics . 60
Table D.1 – Overload test values . 62
Table D.2 – Endurance test values . 63
Table D.3 – Horsepower-rated equipment full-load currents (AC) . 64
Table D.4 – Horsepower-rated equipment currents (DC) . 64
Table D.5 – Overload and endurance test voltages . 64
Table D.6 – Bulk energy capacitances . 66
Table D.7 – Peak current requirements . 66
Table G.1 – Correspondence between the nominal voltage of the supply system and
the equipment rated impulse withstand voltage, in case of overvoltage protection by
surge-arresters according to IEC 60099-1 . 78
Table O.1 – Examples for the relation between failure mode, consequences and
hazard . 91
Table O.2 – Severity of harm . 92
Table O.3 – Probability of harm . 92
Table O.4 – Risk category. 92
IEC 61810-1:2015 © IEC 2015 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMECHANICAL ELEMENTARY RELAYS –
Part 1: General and safety 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
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
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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 fourth edition cancels and replaces the third edition published in 2008. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– two main test procedures were introduced: procedure A, reflecting the procedure known
from Edition 3 of this standard and procedure B, reflecting the assessment according to
North American requirements;
– inclusion of dedicated device application tests especially relevant for applications in the
North American Market (see Clause D.1);
– introduction of testing under single mounting condition;
– clarification of insulation requirements after endurance testing;
– 8 – IEC 61810-1:2015 © IEC 2015
– inclusion of provisions for basic safety requirements;
– update of references.
The text of this standard is based on the following documents:
FDIS Report on voting
94/380/FDIS 94/384RVD
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 publication 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.
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.
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.
IEC 61810-1:2015 © IEC 2015 – 9 –
ELECTROMECHANICAL ELEMENTARY RELAYS –
Part 1: General and safety requirements
1 Scope
This part of IEC 61810 applies to electromechanical elementary relays (non-specified time all-
or-nothing relays) for incorporation into low voltage equipment (circuits up to 1 000 V
alternate current or 1 500 V direct current). It defines the basic functional and safety
requirements and safety-related aspects for applications in all areas of electrical engineering
or electronics, such as:
• general industrial equipment,
• electrical facilities,
• electrical machines,
• electrical appliances for household and similar use,
• information technology and business equipment,
• building automation equipment,
• automation equipment,
• electrical installation equipment,
• medical equipment,
• control equipment,
• telecommunications,
• vehicles,
• transportation (e.g. railways).
Compliance with the requirements of this standard is verified by the type tests indicated.
In case the application of a relay determines additional requirements exceeding those
specified in this standard, the relay should be assessed in line with this application in
accordance with the relevant IEC standard(s) (e.g. IEC 60730-1, IEC 60335-1, IEC 60950-1).
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 60038:2009, IEC standard voltages
IEC 60050 (all parts), International Electrotechnical Vocabulary (available at
http://www.electropedia.org)
IEC 60068-2-2:2007, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 60068-2-17:1994, Basic environmental testing procedures – Part 2-17: Tests – Test Q:
Sealing
– 10 – IEC 61810-1:2015 © IEC 2015
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 60079-15:2010, Explosive atmospheres – Part 15: Equipment protection by type of
protection "n"
IEC 60085:2007, Electrical insulation – Thermal evaluation and designation
IEC 60099-1, Surge arresters – Part 1: Non-linear resistor type gapped surge arresters for
a.c. systems
IEC 60112:2003, Method for the determination of the proof 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, Graphical symbols for use on equipment (available at http://www.graphical-
symbols.info/equipment)
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60664-3:2003, Insulation coordination for equipment within low-voltage systems – Part 3:
Use of coating, potting or moulding for protection against pollution
IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:
Consideration of high-frequency voltage stress
IEC 60664-5:2007, Insulation coordination for equipment within low-voltage systems – Par
...
Frequently Asked Questions
EN 61810-1:2015 is a standard published by CLC. Its full title is "Electromechanical elementary relays - Part 1: General and safety requirements". This standard covers: IEC 61810-1:2015 applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1 000 V alternate current or 1 500 V direct current). It defines the basic functional and safety requirements and safety-related aspects for applications in all areas of electrical engineering or electronics, such as: general industrial equipment, electrical facilities, electrical machines, electrical appliances for household and similar use, information technology and business equipment, building automation equipment, automation equipment, electrical installation equipment, medical equipment, control equipment, telecommunications, vehicles, transportation (e.g. railways). Compliance with the requirements of this standard is verified by the type tests indicated. In case the application of a relay determines additional requirements exceeding those specified in this standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s). This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - two main test procedures were introduced: procedure A, reflecting the procedure known from Edition 3 of this standard and procedure B, reflecting the assessment according to North American requirements; - inclusion of dedicated device application tests especially relevant for applications in the North American Market (see Clause D.1); - introduction of testing under single mounting condition; - clarification of insulation requirements after endurance testing; - inclusion of provisions for basic safety requirements; - update of references.
IEC 61810-1:2015 applies to electromechanical elementary relays (non-specified time all-or-nothing relays) for incorporation into low voltage equipment (circuits up to 1 000 V alternate current or 1 500 V direct current). It defines the basic functional and safety requirements and safety-related aspects for applications in all areas of electrical engineering or electronics, such as: general industrial equipment, electrical facilities, electrical machines, electrical appliances for household and similar use, information technology and business equipment, building automation equipment, automation equipment, electrical installation equipment, medical equipment, control equipment, telecommunications, vehicles, transportation (e.g. railways). Compliance with the requirements of this standard is verified by the type tests indicated. In case the application of a relay determines additional requirements exceeding those specified in this standard, the relay should be assessed in line with this application in accordance with the relevant IEC standard(s). This fourth edition cancels and replaces the third edition published in 2008. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - two main test procedures were introduced: procedure A, reflecting the procedure known from Edition 3 of this standard and procedure B, reflecting the assessment according to North American requirements; - inclusion of dedicated device application tests especially relevant for applications in the North American Market (see Clause D.1); - introduction of testing under single mounting condition; - clarification of insulation requirements after endurance testing; - inclusion of provisions for basic safety requirements; - update of references.
EN 61810-1:2015 is classified under the following ICS (International Classification for Standards) categories: 29.120.70 - Relays. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 61810-1:2015 has the following relationships with other standards: It is inter standard links to EN 61810-1:2008, EN 61810-1:2015/A1:2020, EN 61810-1:2015/AC:2017-07, EN 61810-1:2015/AC:2018-04. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 61810-1:2015 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CLC standards.
The standard EN 61810-1:2015 is a comprehensive reference for the design and safety requirements pertinent to electromechanical elementary relays. Its scope encompasses a wide range of applications within the realms of electrical engineering and electronics, addressing relays intended for low voltage equipment with circuits up to 1,000 V AC or 1,500 V DC. This inclusivity makes it relevant across various sectors, including industrial equipment, medical devices, home appliances, telecommunications, and even transportation systems such as railways. One of the primary strengths of this standard lies in its dual testing procedures, which accommodate both the established European protocols and the specific requirements prevalent in the North American market. This adaptability is crucial for manufacturers who are keen on ensuring compliance across diverse regional regulations, promoting a global standard of safety and functionality. Furthermore, the introduction of dedicated device application tests tailored for the North American market highlights the standard’s responsiveness to market needs, enhancing its practicality. The 2015 revision is particularly significant as it not only updates references but also encompasses key technical changes from the previous edition, such as the revised testing frameworks and a more refined specification of insulation requirements following endurance testing. These advancements ensure that the standard remains at the cutting edge of technological and regulatory developments, reflecting modern practices in design and safety considerations. By establishing a clear framework for compliance through type testing, EN 61810-1:2015 serves as a crucial guideline that bolsters safety and reliability in various applications, further solidifying its relevance in today’s fast-evolving technological landscape. This standard is a critical tool for manufacturers seeking assurance that their electromechanical relays meet rigorous safety and performance expectations.
SIST EN 61810-1:2015は、電気機械的基礎リレーに関する包括的かつ詳細な標準を提供します。特に、低電圧設備への組み込みに適用される非指定時間のオールオアナッシングリレーに焦点を当て、最大1,000Vの交流または1,500Vの直流回路に対応しています。この標準は、電気工学や電子工学のあらゆる分野での応用において、基本的な機能要件、安全要件、および関連する安全面を明確に定義しています。 この標準の強みは、多岐にわたる応用分野への適用性です。一般産業機器、電気設備、電気機械、家電製品、情報技術機器、ビジネス機器、建物の自動化機器、制御機器、医療機器、通信機器、輸送機器など、様々な領域での活用が期待できます。また、要求事項の遵守は、明示された型式テストによって確認されるため、実際の製品に対する信頼性を高めます。 さらに、今回の改訂（第4版）では、2008年に発表された第3版を取り消し、新たに技術的な改訂が行われました。特に注目すべきは、2つの主要な試験手順の導入であり、手順Aは第3版からの手法を反映し、手順Bは北米の要件に基づく評価を行います。この改訂により、北米市場に特有なデバイス応用テストが追加され、単一搭載条件下での試験、耐久試験後の絶縁要件の明確化、基本的な安全要件への規定が含まれています。 これらの技術的変更により、SIST EN 61810-1:2015は、今日の電気機械的基礎リレーに関するニーズに的確に応えるものとなっています。この標準は、信頼性の高い製品設計と安全で効率的な電気工学の実践において不可欠なガイドラインを提供します。
La norme SIST EN 61810-1:2015 constitue une référence essentielle dans le domaine des relais électromécaniques élémentaires. Elle s’applique aux relais d’all-or-nothing non spécifiés en durée, et est destinée à être intégrée dans des équipements à basse tension, comprenant des circuits jusqu’à 1 000 V en courant alternatif ou 1 500 V en courant continu. Cette norme définit avec précision les exigences fonctionnelles de base ainsi que les conditions de sécurité, englobant un large éventail d'applications dans le secteur de l'ingénierie électrique et de l'électronique. Les équipements industriels généraux, les installations électriques, les machines électriques, et même les dispositifs de contrôle et de télécommunications relèvent de son champ d'application. Cela souligne la pertinence de la norme dans des domaines variés tels que l'automatisation des bâtiments et les équipements médicaux. Parmi les points forts de cette quatrième édition, nous remarquons l'introduction de deux procédures principales de test, procédures A et B, permettant de répondre aux exigences spécifiques du marché nord-américain, tout en maintenant la continuité avec les précédentes éditions. De plus, la norme a évolué pour inclure des tests appliqués aux dispositifs dédiés, ce qui renforce encore son applicabilité dans des contextes variés. Les clarifications apportées concernant les exigences d'isolation après des tests d'endurance sont un autre atout majeur, assurant une sécurité renforcée tout au long de la durée de vie des relais. La mise à jour des références normatives et l'inclusion de dispositions précises pour les exigences de sécurité de base témoignent également de l'engagement à maintenir la norme à jour face aux évolutions technologiques et aux exigences de sécurité actuelles. En somme, la SIST EN 61810-1:2015 est un document clé pour les professionnels du secteur, garantissant la conformité et la sécurité des relais électromécaniques dans une multitude d’applications industrielles et commerciales.
Die Norm EN 61810-1:2015 regelt die Anforderungen und Sicherheitsaspekte von elektromechanischen elementaren Relais und ist von entscheidender Bedeutung für die Integration in Niederspannungsanlagen. Sie gilt für Relais, die in einem Spannungsbereich von bis zu 1 000 V Wechselstrom oder 1 500 V Gleichstrom eingesetzt werden, was ihre breite Anwendbarkeit in verschiedenen Bereichen der Elektrotechnik und Elektronik unterstreicht. Ein herausragendes Merkmal dieser Norm ist ihre umfassende Definition der grundlegenden funktionalen und sicherheitsrelevanten Anforderungen. Die Anwendung dieser Norm erstreckt sich über eine Vielzahl von Industrien, darunter allgemeine Industrieanlagen, elektrische Anlagen, Maschinen, Geräte für den Hausgebrauch, Informationstechnologie, Automatisierungstechnik und sogar medizinische Geräte. Dadurch wird die Relevanz der Norm im Kontext moderner Technologien und Sicherheitsstandards klar, da sie die vielschichtigen Bedürfnisse unterschiedlicher Sektoren adressiert. Die Einführung von zwei Hauptprüfverfahren – Verfahren A und B – stellt eine signifikante Verbesserung dar. Verfahren A orientiert sich an den Bestimmungen der vorherigen Auflage, während Verfahren B eine Anpassung an nordamerikanische Anforderungen bietet. Diese Anpassungsfähigkeit macht die Norm besonders wertvoll für Hersteller, die in internationalen Märkten tätig sind, und fördert die globale Konformität. Zudem sind die speziellen Gerätetests, die für den nordamerikanischen Markt relevant sind, ein weiterer entscheidender Fortschritt. Diese Tests garantieren, dass die Produkte den spezifischen Anforderungen dieser Region gerecht werden, was die Marktfähigkeit und Akzeptanz steigert. Die Norm bringt auch Klarstellungen hinsichtlich der Isolationsanforderungen nach Dauerbelastung sowie neue Bestimmungen zu den grundlegenden Sicherheitsanforderungen mit sich. Diese Aktualisierungen erhöhen die Sicherheit und Zuverlässigkeit der elektrischen Systeme, in denen die Relais verwendet werden, und tragen dazu bei, das Risiko von Fehlfunktionen oder Gefahren zu minimieren. Insgesamt ist die Norm EN 61810-1:2015 eine technisch überarbeitete und verbesserte Version, die nicht nur die Sicherheit und Funktionalität von elektromechanischen Relais gewährleistet, sondern auch deren Anwendbarkeit in einer Vielzahl von alten und neuen Technologien verstärkt. Die Anpassungen und Ergänzungen der Norm machen sie zu einem unverzichtbaren Dokument für Ingenieure und Hersteller im Bereich der Elektrotechnik.
SIST EN 61810-1:2015 표준은 전기 기계적 기본 릴레이에 대한 일반 및 안전 요구 사항을 정의하며, 전기 공학 또는 전자 공학의 모든 분야에서의 적용을 포괄합니다. 이 표준은 저전압 장비에 통합하기 위한 비지정 시간 전기 기계적 릴레이에 적용되며, 1000V 교류 또는 1500V 직류 회로를 포함합니다. 이 표준의 강점 중 하나는 안전 관련 측면을 포괄적으로 다루며, 다양한 산업 장비, 전기 시설, 전기 기계, 가전 제품, 정보 기술 및 비즈니스 장비, 건물 자동화 장비, 의료 장비 등에서의 응용을 고려한다는 점입니다. 특히, 다양한 전세계 적용 요구 사항을 충족할 수 있도록 설계되었습니다. 또한, 이 표준은 기존의 기능적 요구사항과 안전 요구사항 외에도 북미 시장 관련 전용 장치 응용 테스트를 포함시켜, 북미 시장의 규제를 준수할 수 있도록 돕습니다. 여기에는 단일 설치 조건에서의 테스트와 내구성 테스트 이후의 절연 요구 사항에 대한 명확화가 포함되어 있습니다. 더불어, 요구사항 준수는 지정된 유형 시험을 통해 검증되며, 비표준 릴레이의 경우 관련 IEC 표준에 따라 추가 요구 사항에 맞춰 평가할 수 있는 유연성을 제공합니다. 이러한 포괄적이고 체계적인 접근 방식은 전세계 시장에서의 안전 및 신뢰성을 보장합니다. 이번 개정판은 2008년에 발표된 이전 판을 대체하며, 주요 기술적 변화가 포함되어 있어 품질과 안전 기준의 지속적인 향상에 기여합니다. EN 61810-1:2015 표준은 전기 기계적 릴레이의 설계와 적용에 있어 신뢰성과 안전성을 보장하는 필수 문서로 자리잡고 있습니다.
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