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


Low voltage surge protective devices



Reference EN 61643-21:2001/A2:2013
Title Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
Project Number 23583
Abstract/Scope Is applicable to devices for surge protection of telecommunications and signalling networks against indirect and direct effects of lightning or other transient overvoltages. The purpose of these SPDs is to protect modern electronic equipment connected to telecommunications and signalling networks with nominal system voltags up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c.


Current Stage code 6060
Current Stage code date 2013-01-25
Current Stage code deadline 2013-07-25
Deadline date for vote  


Directive(s) LVD (2006/95/EC)
Order Voucher  


IEC Technical Body IEC/SC 37A
Reference Document IEC 61643-21:2000/A2:2012 (EQV)
ICS 29.240 - Power transmission and distribution networks
29.240.10 - Substations. Surge arresters
Keywords Surge; Protective device; Telecommunications; Signalling; Test method
Note DOP = DAV + 6 months (D139/C142)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2013-01-25 2013-07-25 export to doc file  EN  FR  DE
5099 2012-08-31 2012-09-28  
5060 2012-06-11 2012-07-02 export to doc file  EN
5020 2012-04-06 2012-06-08  
3090 2011-11-25 2012-02-28  
5060 2011-11-02 2011-11-23 export to doc file  EN
5020 2011-05-27 2011-10-28  
1090 2011-05-24 2011-05-27  

Implementation Dates

date of Ratification (DOR) (1) 2012-08-31
date of Availability (DAV) (2) 2013-01-25
date of Announcement (DOA) (3) 2013-04-25
date of Publication (DOP) (4) 2013-07-25
date of Withdrawal (DOW) (5) 2015-08-31


Superseded by  
Normative reference (6) EN 60999-1:2000
EN 61643-11:2012
ITU-T Recommendation K.82:2010
ITU-T Recommendation K.44:2011

(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.