Customer Support: +1 416-401-8730

Login to i2i Subscription Intertek.com
  • There are no items in your cart
Please enter a keyword to search
Advanced search

IEC 61643-331:2017

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

12-31-2021

Language(s)

English - French, English

Published date

12-07-2017

Publisher

International Electrotechnical Committee

FOREWORD
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated
  terms
4 Service conditions
5 Mechanical requirements and materials
6 General
7 Electrical requirements
8 Standard design test criteria
9 Nominal discharge current and limited current
  temporary overvoltage
Annex A (informative) - MOV testing according to
        IEC 61643-11:2011 - Surge protective devices
        for the Class I, II and III
Annex B (informative) - IEC 61051 Varistors for use
        in electronic equipment
Annex C (informative) - Accelerated endurance
        screening test
Annex D (informative) - Proposed test method for
        determination of mean time to failure (MTTF)
Bibliography

IEC 61643-331:2017 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 line, or telecommunication, or signalling circuits. They are designed to protect apparatus or personnel, or both, from high transient voltages. This specification applies to MOVs having two electrodes and hybrid overvoltage protection components. This specification 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 second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) Update of the nominal varistor voltage test method;
b) Addition of thermally protected varistors – component symbol and test methods;
c) Addition of nominal discharge current – test methods;
d) Addition of voltage ratings for disc types (Table 1);
e) Addition of test currents for clamping voltage of disc types (Table 2);
f) Addition of typical voltage ratings of SMD types (Table 3); and
g) Addition of Limited current and temporary overvoltage tests for thermally protected varistors.
Keywords: metal oxide varistors (MOV), high transient voltages.

Committee
TC 37/SC 37B
DevelopmentNote
Stability Date: 2019. (12/2017)
DocumentType
Standard
Pages
82
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

IEC 60068-1:2013 Environmental testing - Part 1: General and guidance
IEC 60068-2-20:2008 Environmental testing - Part 2-20: Tests - Test T: Test methods for solderability and resistance to soldering heat of devices with leads
IEC 60068-2-21:2006 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminations and integral mounting devices
IEC TR 62240-1:2013 Process management for avionics - Electronic components capability in operation - Part 1: Temperature uprating
IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
IEC 61051-2:1991 Varistors for use in electronic equipment - Part 2: Sectional specification for surge suppression varistors
IEC 61643-11:2011 Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power systems - Requirements and test methods
IEC 60068-2-29:1987 Environmental testing. Part 2: Tests. Test Eb and guidance: Bump
IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
IEC 60068-2-52:2017 Environmental testing - Part 2-52: Tests - Test Kb: Salt mist, cyclic (sodium chloride solution)
IEC 61051-1:2007 Varistors for use in electronic equipment - Part 1: Generic specification

View more information
US$313.00
Excluding Tax where applicable
USD
CAD
CHF
CNY
DKK
EUR
GBP
HKD
IDR
INR
JPY
KRW
MXN
NOK
NZD
SEK
SGD
USD
ZAR
Hardcopy - English - French
PDF - English - French
PDF 3 Users - English - French
PDF 5 Users - English - French
PDF 9 Users - English - French
Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

or

Get in touch with us