I.S. EN IEC 61643-331:2020
Current
The latest, up-to-date edition.
COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 331: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR METAL OXIDE VARISTORS (MOV)
Hardcopy , PDF
English
04-06-2020
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
European foreword
Introduction
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 the 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 (normative) Accelerated Endurance screening test
Annex D (informative) Proposed test method of MTTF – Mean time to failure (MTTF)
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