EN IEC 63522-13:2025
(Main)Electrical relays - Tests and measurements - Part 13: Corrosive atmospheres due to sulfur impact
Electrical relays - Tests and measurements - Part 13: Corrosive atmospheres due to sulfur impact
IEC 63522-13:2024 is used for testing electromechanical elementary relays (electromechanical relays, reed relays, reed contacts, reed switches and technology combinations of these) and for evaluating their ability to perform under expected conditions of transportation, storage and all aspects of operational use. This document defines a standard test method to simulate impacts of sulfuric atmospheres to relays. The test conditions simulate an artificial situation and allow a performance comparison for usability of the devices under test (DUT) with regard to known and existing switching solutions. The test is a static test without actual operation of the DUT to simulate a worst-case scenario for corrosion, since corrosion increases over time. The corrosion layer can potentially create contact sticking, increase resistance or other undesired effects in the relay. Those aspects can be affected by DUT actuations during the test, which can destroy the corrosion layers or hide relevant long-term effects. In addition to polluted atmospheres, the suitability of the DUT for use and/or storage in corrosive atmospheres can be assessed in a salt-laden atmosphere as described in IEC 63522-44.
Elektrische Relais - Mess- und Prüfverfahren - Teil 13: Korrosive Atmosphären aufgrund von Schwefeleinwirkung
Relais électriques - Essais et mesurages - Partie 13: Atmosphères corrosives - Atmosphères polluées
Le IEC 63522-13:2024 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 qui vise à simuler les impacts des atmosphères sulfuriques sur les relais. Les conditions d'essai simulent une situation artificielle et permettent une comparaison des performances en matière d'aptitude à l'emploi des dispositifs soumis à l'essai (DUT, Devices Under Test) par rapport à des solutions de commutation existantes connues. L'essai est un essai statique sans fonctionnement réel du DUT afin de simuler le scénario le plus défavorable en ce qui concerne la corrosion, celle-ci augmentant avec le temps. La couche de corrosion peut potentiellement créer un collage des contacts, une augmentation de la résistance ou d'autres effets indésirables dans le relais. Ces aspects peuvent être altérés par les manœuvres du DUT au cours de l'essai, qui peuvent détruire les couches ou masquer les effets pertinents à long terme. Outre les atmosphères polluées, l'aptitude du DUT à être utilisé et/ou stocké dans des atmosphères corrosives peut être évaluée dans une atmosphère saline, comme cela est décrit dans l'IEC 63522-44.
Električni releji - Preskusi in meritve - 7-1. del: Korozivne atmosfere - Onesnažena atmosfera
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2025
Električni releji - Preskusi in meritve - 7-1. del: Korozivne atmosfere - Onesnažena
atmosfera
Electrical relays - Tests and Measurements - Part 7-13: Corrosive atmospheres -
Polluted atmospheres
Elektrische Relais – Mess- und Prüfverfahren – Teil 13: Korrosive Atmosphären
aufgrund von Schwefeleinwirkung
Relais électriques - Essais et mesurages - Partie 13: Atmosphères corrosives -
Atmosphères polluées
Ta slovenski standard je istoveten z: EN IEC 63522-13:2025
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 63522-13
NORME EUROPÉENNE
EUROPÄISCHE NORM January 2025
ICS 29.120.70
English Version
Electrical relays - Tests and measurements - Part 13: Corrosive
atmospheres due to sulfur impact
(IEC 63522-13:2024)
Relais électriques - Essais et mesurages - Partie 13: Elektrische Relais - Mess- und Prüfverfahren - Teil 13:
Atmosphères corrosives - Atmosphères polluées Korrosive Atmosphären aufgrund von Schwefeleinwirkung
(IEC 63522-13:2024) (IEC 63522-13:2024)
This European Standard was approved by CENELEC on 2025-01-09. 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,
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 63522-13:2025 E
European foreword
The text of document 94/1051/FDIS, future edition 1 of IEC 63522-13, 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) 2026-01-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-01-31
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 63522-13:2024 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 60068-2-11 NOTE Approved as EN IEC 60068-2-11
IEC 60068-2-46 NOTE Approved as HD 323.2.46 S1
IEC 60068-2-60 NOTE Approved as EN 60068-2-60
IEC 61810-1:2015 NOTE Approved as EN 61810-1:2015 (not modified)
IEC 61810-1:2015/A1:2019 NOTE Approved as EN 61810-1:2015/A1:2020 (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 60068-2-42 2003 Environmental testing - Part 2-42: Tests - EN 60068-2-42 2003
Test Kc: Sulphur dioxide test for contacts
and connections
IEC 60068-2-43 2003 Environmental testing - Part 2-43: Tests - EN 60068-2-43 2003
Test Kd: Hydrogen sulphide test for
contacts and connections
1 2
IEC 63522-0 — Electrical relays - Tests and Measurements EN IEC 63522-0 —
- Part 0: General and Guidance
3 4
IEC 63522-1 - Electrical relays - Tests and measurements EN IEC 63522-1 -
- Part 1: Visual inspection and check of
dimensions
5 6
IEC 63522-6 - Electrical relays - Tests and measurements EN IEC 63522-6 -
- Part 6: Contact-circuit resistance (or
voltage drop)
7 8
IEC 63522-7 - Electrical relays - Tests and measurements EN IEC 63522-7 -
- Part 7: Functional tests
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.
Under preparation. Stage at the time of publication: IEC CDV 63522-1:2023.
Under preparation. Stage at the time of publication: prEN IEC 63522-1:2023.
Under preparation. Stage at the time of publication: IEC FDIS 63522-6:2024.
Under preparation. Stage at the time of publication: FprEN IEC 63522-6:2024.
Under preparation. Stage at the time of publication: IEC FDIS 63522-7:2024.
Under preparation. Stage at the time of publication: FprEN IEC 63522-7:2024.
IEC 63522-13 ®
Edition 1.0 2024-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –
Part 13: Corrosive atmospheres due to sulfur impact
Relais électriques – Essais et mesurages –
Partie 13: Atmosphères corrosives – Atmosphères polluées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70 ISBN 978-2-8322-4244-5
– 2 – IEC 63522-13:2024 © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Test procedure . 6
4.1 Purpose . 6
4.2 Procedure . 6
4.3 Conditions . 7
5 Evaluation . 7
5.1 General . 7
5.2 Test report . 8
Bibliography . 9
IEC 63522-13:2024 © IEC 2024 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL RELAYS –
TESTS AND MEASUREMENTS –
Part 13: Corrosive atmospheres due to sulfur impact
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 63522-13 has been prepared by IEC technical committee 94: Electrical relays. It is an
International Standard.
The text of this International Standard is based on the following documents:
FDIS Report on voting
94/1051/FDIS 94/1080/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
– 4 – IEC 63522-13:2024 © IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of the IEC 63522 series, published under the general title Electrical relays –
Tests and measurements, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IEC 63522-13:2024 © IEC 2024 – 5 –
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.