EN IEC 63522-7:2025
(Main)Electrical relays - Tests and measurements - Part 7: Functional tests
Electrical relays - Tests and measurements - Part 7: Functional tests
IEC 63522-7:2025 is used for testing electromechanical elementary relays (electromechanical relays, reed relays, reed contacts, reed switches and technology combination of these) and evaluates their ability to perform under expected conditions of transportation, storage and all aspects of operational use. This document defines a standard test method to evaluate the switching function of the device under test (DUT) at specified energization values throughout the defined temperature range.
Elektrische Relais - Mess- und Prüfverfahren - Teil 7: Funktionelle Tests
Relais électriques - Essais et mesurages - Partie 7: Essais fonctionnels
IEC 63522-7:2025 traite des essais des relais électromécaniques élémentaires (relais électromécaniques, relais à lames souples, contacts à lames souples et leur combinaisons technologiques) et permet d'évaluer leur aptitude à fonctionner dans des conditions prévues de transport, de stockage, et tous les aspects d'utilisation opérationnelle. Le présent document définit une méthode d'essai normalisée pour évaluer la fonction de commutation du dispositif soumis à l'essai (DUT, Device Under Test) à des valeurs d'alimentation spécifiées dans la plage de températures définie.
Električni releji - Preskusi in meritve - 7 del: Funkcionalni preskusi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Električni releji - Preskusi in meritve - 7 del: Funkcionalni preskusi
Electrical relays - Tests and Measurements - Part 7: Functional Tests
Elektrische Relais - Mess- und Prüfverfahren - Teil 7: Funktionelle Tests
Relais électriques - Essais et mesurages - Partie 7-7: Essais fonctionnels
Ta slovenski standard je istoveten z: EN IEC 63522-7:2025
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 63522-7
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2025
ICS 29.120.70
English Version
Electrical relays - Tests and measurements - Part 7: Functional
tests
(IEC 63522-7:2025)
Relais électriques - Essais et mesurages - Partie 7: Essais Elektrische Relais - Mess- und Prüfverfahren - Teil 7:
fonctionnels Funktionelle Tests
(IEC 63522-7:2025) (IEC 63522-7:2025)
This European Standard was approved by CENELEC on 2025-05-20. 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,
Türkiye 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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63522-7:2025 E
European foreword
The text of document 94/1048/FDIS, future edition 1 of IEC 63522-7, prepared by TC 94 "Electrical
relays" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-06-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-06-30
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 63522-7:2025 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 standard indicated:
IEC 61810-4:2020 NOTE Approved as EN IEC 61810-4:2020 (not modified)
IEC 61810-7:2006 NOTE Approved as EN 61810-7:2006 (not modified)
IEC 62314:2022 NOTE Approved as EN IEC 62314:2024 (not modified)
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.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60077-1 - Railway applications - Electric equipment for rolling EN 60077-1 -
stock - Part 1: General service conditions and
general rules
IEC 60571 2012 Railway applications - Electronic equipment used - -
on rolling stock
IEC 61373 2010 Railway applications - Rolling stock equipment - EN 61373 2010
Shock and vibration tests
IEC 61810-1 2015 Electromechanical elementary relays - Part 1: EN 61810-1 2015
General and safety requirements
+ A1 2019 + A1 2020
IEC 61810-2 2017 Electromechanical elementary relays - Part 2: EN 61810-2 2017
Reliability
IEC 61810-2- 2017 Electromechanical elementary relays - Part 2-1: EN 61810-2-1 2017
1 Reliability - Procedure for the verification of B10
values
IEC 61810-3 2015 Electromechanical elementary relays - Part 3: EN 61810-3 2015
Relays with forcibly guided (mechanically linked)
contacts
IEC 61812-1 2023 Time relays and coupling relays for industrial and EN IEC 61812-1 2024
residential use - Part 1: Requirements and tests
IEC 62246-1 2015 Reed switches - Part 1: Generic specification EN 62246-1 2015
IEC 62479 - Assessment of the compliance of low-power EN 62479 -
electronic and electrical equipment with the basic
restrictions related to human exposure to
electromagnetic fields (10 MHz to 300 GHz)
IEC 62497-1 2010 Railway applications - Insulation coordination - Part - -
1: Basic requirements - Clearances and creepage
distances for all electrical and electronic equipment
IEC 62498-1 - Railway applications - Environmental conditions for - -
equipment - Part 1: Equipment on board rolling
stock
Publication Year Title EN/HD Year
1 2
IEC 63522-0 — Electrical relays - Tests and Measurements - Part EN IEC 63522-0 —
0: General and Guidance
IEC 63522-25 2025 Electrical relays - Tests and measurements - Part EN IEC 63522-25 -
25: Magnetic interference
Under preparation. Stage at the time of publication: IEC CDV 63522-0:2024.
Under preparation. Stage at the time of publication: prEN IEC 63522-0:2024.
IEC 63522-7 ®
Edition 1.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –
Part 7: Functional tests
Relais électriques – Essais et mesurages –
Partie 7: Essais fonctionnels
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8327-0329-8
– 2 – IEC 63522-7:2025 © IEC 2025
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Test procedure . 7
4.1 Purpose . 7
4.2 Procedure . 7
4.3 Conditions . 13
5 Evaluation . 14
5.1 General . 14
5.2 Test report . 14
Annex A (normative) Test procedures for particular relay types . 15
A.1 Elementary relays with reed switches (reed contacts) . 15
A.1.1 General . 15
A.1.2 Procedure . 15
A.1.3 Requirements . 16
A.1.4 Information to be stated in the detail specification . 17
A.1.5 Influence of magnetic interferences . 17
A.1.6 Railway applications . 18
A.2 Time relays for industrial and residential use . 19
A.2.1 General . 19
A.2.2 Operate . 19
A.2.3 Release . 19
A.2.4 Time function . 20
A.3 Solid-state relays . 20
A.3.1 General . 20
A.3.2 OFF-state leakage current measurement . 21
A.3.3 ON-state voltage drop measurement . 21
A.4 Relays with forcibly guided (mechanically linked) contacts . 21
A.4.1 General . 21
A.4.2 Functional requirements . 21
A.4.3 Test procedure . 21
Annex B (normative) Standard test coils and test systems for reed switches . 23
B.1 Standard test coils for reed switches . 23
B.2 Ideal solenoid . 24
B.3 Test systems for reed switches . 25
B.3.1 Definition of test systems . 25
B.3.2 Test procedures and conditions of testing . 26
Bibliography . 27
Figure 1 – Monostable non-polarized DUT . 9
Figure 2 – Monostable DUT polarized by diode . 10
Figure 3 – Monostable polarized DUT with magnetic biasing . 11
Figure 4 – Bistable non-polarized DUT (not applicable to remanence DUTs) . 12
Figure 5 – Bistable polarized DUT (example) . 13
IEC 63522-7:2025 © IEC 2025 – 3 –
Figure A.1 – Example of test arrangement for multi-mounting . 18
Figure B.1 – Configuration of test coils . 23
Figure B.2 – Test system 1 . 25
Figure B.3 – Test system 2 . 25
Table 1 – Energization quantity values and corresponding functions . 8
Table A.1 – Special requirements for railway applications – Rolling stock . 19
Table A.2 – Changing of influencing quantities. 20
Table B.1 – List of standard test coils . 23
– 4 – IEC 63522-7:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL RELAYS – TESTS AND MEASUREMENTS –
Part 7: Functional tests
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for
...
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