International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 61643-311:2013
Title Components for low-voltage surge protective devices - Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
Project Number 22795
Abstract/Scope IEC 61643-311:2013 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling and low-voltage power distribution networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c..They are defined as a gap, or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or personnel, or both, from high transient voltages. This standard contains a series of test criteria, test methods and test circuits for determining the electrical characteristics of GDTs having two or three electrodes. This standard does not specify requirements applicable to complete surge protective devices, nor does it specify total requirements for GDTs employed within electronic devices, where precise coordination between GDT performance and surge protective device withstand capability is highly critical. This second edition of IEC 61643-311 cancels and replaces the first edition published in 2001. It constitutes a technical revision. Specific changes with respect to the previous edition are: Addition of performance values. Key words: gas discharge tubes (GDT), overvoltage protection in telecommunications, signalling and low-voltage power distribution networks, nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.


Current Stage code 6060
Current Stage code date 2013-08-09
Current Stage code deadline 2014-02-16
Deadline date for vote  


Directive(s) EMC related (2004/108/EC)
Order Voucher  


IEC Technical Body IEC/SC 37B
Reference Document IEC 61643-311:2013 (EQV)
ICS 31.100 - Electronic tubes
33.040.99 - Other equipment for telecommunication systems
Keywords Surge; Protective device; LV; Gas discharge tube
Note EN 61643-311:2013 and EN 61643-312:2013 supersede EN 61643-311:2001*2013-05-16: Publication allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-08-09 2014-02-16 export to doc file  EN  FR  DE
5099 2013-05-16 2013-06-13  
5060 2013-02-18 2013-03-11 export to doc file  EN
5020 2012-12-14 2013-02-15  
3090 2011-04-15 2011-06-30  
5060 2010-06-21 2010-07-05 export to doc file  EN
5020 2010-01-15 2010-06-18  
1090 2010-01-12 2010-01-15  

Implementation Dates

date of Ratification (DOR) (1) 2013-05-16
date of Availability (DAV) (2) 2013-08-09
date of Announcement (DOA) (3) 2013-08-16
date of Publication (DOP) (4) 2014-02-16
date of Withdrawal (DOW) (5) 2016-05-16


Supersedes EN 61643-311:2001
Superseded by  
Normative reference (6) ITU-T Recommendation K.20:2003
EN 60068-2-1:2007
EN 60068-2-20:2008
EN 60068-2-21:2006
EN 61000-4-5:2006

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.