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



Reference EN 50438:2007
Title Requirements for the connection of micro-generators in parallel with public low-voltage distribution networks
Project Number 15752
Abstract/Scope This European Standard specifies technical requirements for connection and operation of fixed installed micro-generators and their protection devices, irrespective of the micro-generators primary source of energy, in parallel with public low-voltage distribution networks, where micro-generation refers to equipment rated up to and including 16 A per phase, single or multi phase 230/400 V or multi phase 230 V (phase-to-phase voltage). This European Standard is intended for installation mainly in the domestic market.


Current Stage code 6060
Current Stage code date 2007-12-21
Current Stage code deadline 2008-10-01
Deadline date for vote 2007-12-05


Mandate(s) M/490
Order Voucher  


IEC Technical Body  
Reference Document  
ICS 29.160.20 - Generators
Keywords Cogeneration; Domestic; Distribution network; Connection; Low-voltage
Note Supersedes CWA 14642:2003 * To be implemented by all countries with exception of CH * Superseded by EN 50438:2013
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-12-21 2008-10-01 export to doc file  EN  FR  DE
5099 2007-09-11 2008-01-11  
5062 2007-07-31 2007-09-11  
5060 2007-03-20 2007-04-03 export to doc file  EN
5020 2007-01-12 2007-03-16 export to doc file  EN
4099 2006-09-12 2007-01-12  
4060 2006-03-01 2006-06-01 export to doc file  EN
4020 2005-12-23 2006-02-24  
4093 2005-05-20 2005-10-20  
4060 2005-01-31 2005-03-31  
4020 2004-07-30 2005-01-28  
3099 2004-03-11 2004-08-11  
3092 2003-05-21 2003-07-15  
2020 2003-03-18 2003-09-18  

Implementation Dates

date of Ratification (DOR) (1) 2007-09-11
date of Availability (DAV) (2) 2007-12-21
date of Announcement (DOA) (3) 2008-04-01
date of Publication (DOP) (4) 2008-10-01
date of Withdrawal (DOW) (5) 2010-10-01


(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.