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



Reference EN 61643-341:2001
Title Components for low-voltage surge protective devices - Part 341: Specification for thyristor surge suppressors (TSS)
Project Number 13036
Abstract/Scope Is a test specification standard for thyristor surge suppressor (TSS) components designed to limit overvoltages and divert surge currents by clipping and crowbarring actions. Such components are used in the construction of surge protective devices, particularly as they apply to telecommunications. This standard contains information on -terms, letter symbols, and definitions -basic functions, configurations and component structure -service conditions and fault modes -rating verification and characteristic measurement.


Current Stage code 6060
Current Stage code date 2001-12-14
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 61643-341:2001 (EQV)
ICS 31.080.10 - Diodes
Keywords Surge; Protective device; LV; Thyristor surge suppressor
Note EN following parallel vote
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2001-12-14 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 1999-02-08 1999-02-12  

Implementation Dates

date of Ratification (DOR) (1) 2001-12-01
date of Availability (DAV) (2) 2001-12-14
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Superseded by  
Normative reference (6) ITU-T Recommendation K.21:1996
ITU-T Recommendation K.20:1996
ITU-T Recommendation K.28:1993
IEC 60050-191:1990
IEC 60050-702:1992
EN 60099-4:1993
EN 60721-3-3:1995
EN 60721-3-9:1993
IEC 60747-1:1983
IEC 60747-2:1983
IEC 60747-6:1983
EN 60749:1999
EN 61000-4-5:1995
EN 61083-1:1993

(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.