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



Reference EN 61643-311:2001
Title Components for low-voltage surge protective devices - Part 311: Specification for gas discharge tubes (GDT)
Project Number 13038
Abstract/Scope Gas discharge tubes (GDTs) are used for applications up to 1 000 V a.c. or 1 500 V d.c. in communication or signalling circuits. They are defined as a gap, or series of gaps, in an enclosed discharge medium other than air. They are designed to protect apparatus or personnel, or both, from high transient voltages. 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.


Current Stage code 6060
Current Stage code date 2001-12-13
Current Stage code deadline 2002-09-01
Deadline date for vote  


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


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Note EN following parallel vote * Superseded by EN 61643-311:2013 and EN 61643-312:2013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


Categories - Aspects
Product Life Cycle
4.6 Radiation Manufacturing, Use B2B
4.6 Radiation Manufacturing, Use B2B


Deadline Date
6060 2001-12-13 2002-09-01 export to doc file  EN
5099 2001-12-01 2002-04-01  
5061 2001-10-26 2001-12-01  
5020 2001-07-20 2001-09-21  
4099 2001-07-17 2001-07-20  
4020 1999-02-12 1999-07-15  
3099 1999-02-09 1999-07-09  

Implementation Dates

date of Ratification (DOR) (1) 2001-12-01
date of Availability (DAV) (2) 2001-12-13
date of Announcement (DOA) (3) 2002-03-01
date of Publication (DOP) (4) 2002-09-01
date of Withdrawal (DOW) (5) 2004-12-01


Superseded by EN 61643-311:2013
EN 61643-312:2013
Normative reference (6) ITU-T Recommendation K.20:2000
EN 60068-2-1:1993
HD 323.2.20 S3:1988
EN 60068-2-21:1999
EN 61000-4-5:1995
EN 61180-1:1994

(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.