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



Reference EN 50491-3:2009
Title General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 3: Electrical safety requirements
Project Number 15361
Abstract/Scope This European Standard provides the electrical safety requirements for all devices connected to HBES/BACS. This European Standard is applicable to – operator stations and other human system interface devices, – devices for management functions, – control devices, automation stations and application specific controllers, – field devices, – cabling and interconnection of devices. This European Standard covers the following requirements and compliance criteria: – protection from hazards in the device; – protection from overvoltages on the network; – protection from touch current; – protection from hazards caused by different type of circuits; – protection of the communication wiring from overheating caused by excessive current.


Current Stage code 6060
Current Stage code date 2009-07-22
Current Stage code deadline 2010-03-01
Deadline date for vote  


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


IEC Technical Body ISO/IEC/JTC 1/SC25
Reference Document  
ICS 97.120 - Automatic controls for household use
Keywords HBES; Automation; Control; BACS
Note JWG CLC/TC 205 and CEN/TC 247 work * Supersedes the relevant parts of EN 50090-2-2:1996 (pr=4593) + corrigendum March 1997 + A1:2002 (pr=13450) + A2:2007 (pr=20524)
Special National Condition(s) FI, NO, SE


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2009-07-22 2010-03-01 export to doc file  EN  FR  DE
5099 2009-03-01 2009-07-01  
5060 2009-01-19 2009-02-02 export to doc file  EN
5020 2008-11-14 2009-01-16 export to doc file  EN
3090 2008-07-15 2008-11-05  
5092 2008-04-16 2008-10-16  
5062 2008-03-01 2008-04-16  
5061 2008-01-28 2008-03-01  
5060 2007-12-04 2008-01-04 export to doc file  EN
5020 2007-09-28 2007-11-30 export to doc file  EN
4099 2007-05-16 2007-11-10  
4060 2007-01-16 2007-05-31 export to doc file  EN
4020 2006-08-11 2007-01-12 export to doc file  EN
3099 2006-02-24 2006-08-11  
3020 2005-07-22 2005-10-15  
1000 2004-01-15 2004-12-07  
1000 2002-07-02 2003-01-02  

Implementation Dates

date of Ratification (DOR) (1) 2009-03-01
date of Availability (DAV) (2) 2009-07-22
date of Announcement (DOA) (3) 2009-09-01
date of Publication (DOP) (4) 2010-03-01
date of Withdrawal (DOW) (5) 2012-03-01


Supersedes EN 50090-2-2:1996
EN 50090-2-2:1996/corrigendum Mar. 1997
EN 50090-2-2:1996/A1:2002
EN 50090-2-2:1996/A2:2007
Superseded by  
Normative reference (6) HD 384.5.523 S2:2001
EN 41003:2008
IEC 60050-195:1998
IEC 60050-826:2004
HD 60364-4-41:2007
EN 60664-1:2007
EN 60950-1:2006
EN 60990:1999
EN 61140:2002
EN 61180-1:1994
EN 61180-2:1994
CLC/TR 62102:2006
IEC 62151:2000

(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.