EN IEC 61643-331:2020

Components for low-voltage surge protection - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

IEC 61643-331:2020 is available as IEC 61643-331:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61643-331:2020 is a test specification for metal oxide varistors (MOV), which are used for applications up to 1 000 V AC or 1 500 V DC in power lines, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This document applies to MOVs having two electrodes and hybrid surge protection components. This document also does not apply to mountings and their effect on the MOV’s characteristics. Characteristics given apply solely to the MOV mounted only in the ways described for the tests. This third edition cancels and replaces the second edition published in 2017. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - a Varistor MCOV rating assurance test; - an energy rating test (2ms); - revised Dielectric strength and insulation resistance tests.

Bauelemente für Überspannungsschutzgeräte für Niederspannung – Teil 331: Leistungsanforderungen und Prüfverfahren für Metalloxidvaristoren (MOV)

Composants pour parafoudres basse tension - Partie 331: Exigences de performance et méthodes d'essai pour les varistances à oxyde métallique (MOV)

IEC 61643-331:2020 est disponible sous forme de IEC 61643-331:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.

Sestavni deli za nizkonapetostne naprave za zaščito pred prenapetostnimi udari - 311. del: Zahteve za lastnosti in preskusne metode za kovinsko-oksidne varistorje (MOV)

General Information

• Status: Published
• Publication Date: 07-May-2020
• ICS: 31.040 - Resistors
• Technical Committee: CLC/SR 37B - Specific components for surge arresters and surge protective devices
• Drafting Committee: IEC/SC 37B - IEC_SC_37B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 08-May-2020
• Completion Date: 08-May-2020
• Ref Project: SIST EN IEC 61643-331:2020 - Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

Relations

• Replaces: EN IEC 61643-331:2018 - Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 61643-331:2020
01-julij-2020
Nadomešča:
SIST EN IEC 61643-331:2018
Sestavni deli za nizkonapetostne naprave za zaščito pred prenapetostnimi udari -
311. del: Zahteve za lastnosti in preskusne metode za kovinsko-oksidne varistorje
(MOV)
Components for low-voltage surge protective devices - Part 331: Performance
requirements and test methods for metal oxide varistors (MOV)
Bauelemente für Überspannungsschutzgeräte für Niederspannung – Teil 331:
Leistungsanforderungen und Prüfverfahren für Metalloxidvaristoren (MOV)
Composants pour parafoudres basse tension - Partie 331: Exigences de performance et
méthodes d'essai pour les varistances à oxyde métallique (MOV)
Ta slovenski standard je istoveten z: EN IEC 61643-331:2020
ICS:
29.120.50 Varovalke in druga Fuses and other overcurrent
nadtokovna zaščita protection devices
31.040.20 Potenciometri, spremenljivi Potentiometers, variable
upori resistors
SIST EN IEC 61643-331:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61643-331:2020

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SIST EN IEC 61643-331:2020


EUROPEAN STANDARD EN IEC 61643-331

NORME EUROPÉENNE

EUROPÄISCHE NORM
May 2020
ICS 31.040 Supersedes EN IEC 61643-331:2018 and all of its
amendments and corrigenda (if any)
English Version
Components for low-voltage surge protection - Part 331:
Performance requirements and test methods for metal oxide
varistors (MOV)
(IEC 61643-331:2020)
Composants pour parafoudres basse tension - Partie 331: Bauelemente für Überspannungsschutzgeräte für
Exigences de performance et méthodes d'essai pour les Niederspannung - Teil 331: Leistungsanforderungen und
varistances à oxyde métallique (MOV) Prüfverfahren für Metalloxidvaristoren (MOV)
(IEC 61643-331:2020) (IEC 61643-331:2020)
This European Standard was approved by CENELEC on 2020-04-23. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61643-331:2020 E

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SIST EN IEC 61643-331:2020
EN IEC 61643-331:2020 (E)
European foreword
The text of document 37B/211/FDIS, future edition 3 of IEC 61643-331, prepared by SC 37B
"Components for low-voltage surge protection" of IEC/TC 37 "Surge arresters" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61643-331:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-23
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-23
document have to be withdrawn

This document supersedes EN IEC 61643-331:2018 and all of its amendments and corrigenda (if
any).
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.

Endorsement notice
The text of the International Standard IEC 61643-331:2020 was approved by CENELEC as a
European Standard without any modification.


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SIST EN IEC 61643-331:2020
EN IEC 61643-331:2020 (E)
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
...