EN IEC 61051-2:2021/prA1:2026

Varistoren zur Verwendung in Geräten der Elektronik – Teil 2: Rahmenspezifikation für Varistoren für den Überspannungsschutz

Varistances utilisées dans les équipements électroniques - Partie 2: Spécification intermédiaire pour varistances pour limitations de surtensions transitoires

Varistorji za elektronsko opremo - 2. del: Področna specifikacija za varistorske prenapetostne odvodnike - Dopolnilo A1

General Information

• Status: Not Published
• Publication Date: 09-Jan-2028
• ICS: 31.040.20 - Potentiometers, variable resistors
• Technical Committee: CLC/SR 40 - Capacitors and resistors for electronic equipment
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 19-Jun-2026
• Due Date: 29-Feb-2024
• Completion Date: 19-Jun-2026
• Ref Project: SIST EN IEC 61051-2:2022/oprA1:2026 - Amendment 1 - Varistors for use in electronic equipment - Part 2: Sectional specification for surge suppression varistors

Relations

• Amends: EN IEC 61051-2:2021 - Varistors for use in electronic equipment - Part 2: Sectional specification for surge suppression varistors
• Effective Date: 14-Mar-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2026
Varistorji za elektronsko opremo - 2. del: Področna specifikacija za varistorske
prenapetostne odvodnike - Dopolnilo A1
Amendment 1 - Varistors for use in electronic equipment - Part 2: Sectional specification
for surge suppression varistors
Varistoren zur Verwendung in Geräten der Elektronik – Teil 2: Rahmenspezifikation für
Varistoren für den Überspannungsschutz
Varistances utilisées dans les équipements électroniques - Partie 2: Spécification
intermédiaire pour varistances pour limitations de surtensions transitoires
Ta slovenski standard je istoveten z: EN IEC 61051-2:2021/prA1:2026
ICS:
31.040.20 Potenciometri, spremenljivi Potentiometers, variable
upori resistors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

40/3311/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61051-2/AMD1 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-06-19 2026-09-11
SUPERSEDES DOCUMENTS:
40/3249/CD, 40/3287/CC
IEC TC 40 : CAPACITORS AND RESISTORS FOR ELECTRONIC EQUIPMENT
SECRETARIAT: SECRETARY:
Netherlands Mr Ronald Drenthen
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 1 - Varistors for use in electronic equipment - Part 2: Sectional specification for surge
suppression varistors
PROPOSED STABILITY DATE: 2031
NOTE FROM TC/SC OFFICERS:
this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee
positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose
without permission in writing from IEC.

IEC CDV 61051-2 /AMD1 ED2 © IEC 2026
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 VARISTORS FOR USE IN ELECTRONIC EQUIPMENT –
6 Part 2: Sectional specification for surge suppression varistors
8 AMENDMENT 1
10 FOREWORD
11 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all
12 national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co -
13 operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition
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20 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
21 consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC
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23 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees
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32 6) All users should ensure that they have the latest edition of this publication.
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36 publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
37 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
38 indispensable for the correct application of this publication.
39 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights.
40 IEC shall not be held responsible for identifying any or all such patent rights.
41 This amendment to IEC 61051-2 has been prepared by IEC technical committee 40: Capacitors and
42 resistors for electronic equipment.
43 The text of this Amendment is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
45 Full information on the voting for its approval can be found in the report on voting indicated in the
46 above table.
47 The language used for the development of this International Standard is English.
48 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
49 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available at
IEC CDV 61051-2 /AMD1 ED2 © IEC 2026
50 www.iec.ch/members_experts/refdocs. The main document types developed by IEC are described in
51 greater detail at www.iec.ch/publications.
52 The committee has decided that the contents of this document will remain unchanged until the stability
53 date indicated on the IEC website under webstore.iec.ch in the data related to the specific document.
54 At this date, the document will be
55 • reconfirmed,
56 • withdrawn,
57 • replaced by a revised edition, or
58 • amended.
IEC CDV 61051-2 /AMD1 ED2 © IEC 2026
61 VARISTORS FOR USE IN ELECTRONIC EQUIPMENT –
63 Part 2: Sectional specification for surge suppression varistors
65 AMENDMENT 1
68 7.1 General
69 [In 7.1 reference to the relevant blank detail specification shall be deleted, because the blank ´detail
70 specification IEC 61051-2-2 will be withdrawn.]
71 Dele
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