SIST EN IEC 63522-8:2025

SLOVENSKI STANDARD
01-marec-2025
Električni releji - Preskusi in meritve - 8. del: Časovni načrt
Electrical relays - Tests and Measurements - Part 8: Timing
Elektrische Relais - Mess- und Prüfverfahren - Teil 8: Zeitplan
Relais électriques - Essais et mesurages - Partie 7-8: Contrôle des temps
Ta slovenski standard je istoveten z: EN IEC 63522-8:2024
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 63522-8

NORME EUROPÉENNE
EUROPÄISCHE NORM December 2024
ICS 29.120.70
English Version
Electrical relays - Tests and measurements - Part 8: Timing
(IEC 63522-8:2024)
Relais électriques - Essais et mesurages - Partie 8: Elektrische Relais - Mess- und Prüfverfahren - Teil 8:
Contrôle des temps Zeitplan
(IEC 63522-8:2024) (IEC 63522-8:2024)
This European Standard was approved by CENELEC on 2024-12-10. 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 63522-8:2024 E

European foreword
The text of document 94/1036/FDIS, future edition 1 of IEC 63522-8, 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) 2025-12-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-12-31
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 63522-8:2024 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 60038 NOTE Approved as EN 60038
IEC 60060-1 NOTE Approved as EN 60060-1
IEC 60947-2 NOTE Approved as EN 60947-2
IEC 60947-5-1 NOTE Approved as EN 60947-5-1
IEC 61810-7:2006 NOTE Approved as EN 61810-7:2006 (not modified)
IEC 61812-1:2023 NOTE Approved as EN IEC 61812-1:2024 (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
1 2
IEC 63522-0 - Electrical relays - Tests and Measurements EN 63522-0 -
- Part 0: General and Guidance

Under preparation. Stage at the time of publication: IEC CDV 63522-0:2024.
Under preparation. Stage at the time of publication: prEN 63522-0:2024.
IEC 63522-8 ®
Edition 1.0 2024-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical relays – Tests and measurements –

Part 8: Timing
Relais électriques – Essais et mesurages –

Partie 8: Contrôle des temps
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.70  ISBN 978-2-8322-9904-3

– 2 – IEC 63522-8:2024 © IEC 2024
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
3.1 General . 5
3.2 Terms and definitions related to electromechanical elementary relays . 5
3.3 Terms and definitions related to time relays . 7
4 Test procedure . 8
4.1 Timing tests for elementary relays . 8
4.1.1 Purpose . 8
4.1.2 Procedure . 8
4.1.3 Conditions . 9
4.2 Timing test for time relays . 10
4.2.1 Purpose . 10
4.2.2 Procedure . 11
4.2.3 Conditions . 11
5 Evaluation . 11
5.1 Timing tests for elementary relays . 11
5.1.1 General . 11
5.1.2 Operate / set time . 12
5.1.3 Release / reset time . 12
5.1.4 Bounce time . 12
5.1.5 Stabilization time . 12
5.1.6 Minimum time of energization . 12
5.1.7 Contact time difference . 12
5.2 Timing tests for time relays . 12
5.2.1 Calculation of setting accuracy and repeatability . 12
5.2.2 Calculation of the influence of input voltage and ambient temperature . 13
5.3 Test report . 13
5.3.1 General . 13
5.3.2 Elementary relay timing test report . 13
5.3.3 Time relay timing test report . 14
Annex A (informative) Calculation example for setting accuracy, repeatability and
effect of influence in time relays . 15
A.1 General . 15
A.2 Example of calculation . 15
Bibliography . 16

Figure 1 – Typical circuit for the measurement of time parameters . 9
Figure 2 – Typical traces on an oscilloscope screen during time measurements . 10

Table 1 – Changing of influencing quantities . 11
Table A.1 – Calculation formulae . 15

IEC 63522-8:2024 © IEC 2024 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL RELAYS –
TESTS AND MEASUREMENTS –
Part 8: Timing
FOREWORD
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