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Publication details

Publication CODE Title
NBN EN IEC 61643-331:2018 (2018-03) COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 331: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR METAL OXIDE VARISTORS (MOV)
 
Price Excl. VAT Total number of pages, tables and drawings
25.00 € 3.
Description
IEC 61643-331:2017E) 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.
Class  C
Available files
ATTENTION: Belgian registered standards (NBN EN or NBN HD) are generally only available in English or French. Only the cover page is translated and the document itself is in English or in French.

Very important notice: 98% of the text of the NBN EN 55XXX, NBN EN 6XXXX comes from the IEC text which is NOT included. This text can be ordered here: IEC 61643-331:2017. For the series NBN EN 50XXX, the standards are however complete.

DE version
EN version
FR version
Status
Status Registered trilingual Belgian standard EN or FR or DE
Situation Withdrawn
Replaced by  NBN EN IEC 61643-331:2020
Replaces  NBN EN 61643-331:2004
Origin
Committee TC 37/SC 37B
SPECIFIC COMPONENTS FOR SURGE ARRESTERS AND SURGE PROTECTIVE DEVICES
Responsible De heer VAN HECKE Luk
Approval
BEC Approval 2018-01-11
NBN Approval 2018-04-27
Belgian Official Journal 2018-06-11
Registration 185601
ICS-Code (International Standards Classification) 31.040
NBN Status New
Date of ratification (d.o.r.) 2018-01-11
Date of availability (d.a.v.) 2018-03-16
Date of announcement (d.o.a.) 2018-04-11
Date of publication (d.o.p.) 2018-10-11
Date of withdrawal former edition (d.o.w.) 2021-01-11
Correspondences with international standards
Relation International standard Date
is identical to EN IEC 61643-331:2018 2018-03-16
is identical to IEC 61643-331:2017 2017-12-07
Relations to belgian/foreign publications
Type Origin Code Date
Standard Belgium NBN EN 60068-1:2014
Standard Belgium NBN EN 60068-2-20:2009
Standard Belgium NBN EN 60068-2-21:2007
Standard Belgium NBN EN 60068-2-78:2013
Standard Belgium NBN EN 61000-4-2:2009
Standard Belgium NBN EN 61643-11:2012