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



Reference CLC/TR 50473:2007
Title Recommendations for dimensional co-ordination between enclosures and built-in devices for rail fixing for household and similar installations
Project Number 16959
Abstract/Scope The purpose of this report is to give recommendations of the co-ordination of dimensions between enclosures and built-in devices for rail fixing for household or similar installations by listing the principal overall and related mounting dimensions, the rated current of a single device not exceeding 125 A. Examples of these devices are: MCBs, RCDs switches, fuse-systems, indicating lamps, relays, socket-outlets, timing switches, etc. Compliance with this document does not preclude the need for compliance with other relevant specifications. This document needs not apply to type tested and partially type tested assemblies which are covered by other specifications. The means of fixing envisaged in this document are mounting rails. Other possible means of fixing may be used but are not covered by these recommendations. NOTE The only criterion chosen in this document for co-ordination of dimensions has been the geometry of the devices. When selecting the enclosure, other criteria should be taken into account, e.g. the rated current of the devices.


Current Stage code 6060
Current Stage code date 2007-05-16
Current Stage code deadline  
Deadline date for vote  


Order Voucher 10 952/518


IEC Technical Body IEC/SC 23E
Reference Document  
ICS 29.060.10 - Wires
Keywords Rail fixing; Household; Enclosure; Built-in device; Dimension
Note Supersedes R023-001:1995
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-05-16   export to doc file  EN
5099 2006-01-21 2006-03-21  
5060 2006-01-21 2006-01-21 export to doc file  EN
5020 2005-10-21 2006-01-20  
1090 2005-07-01 2005-10-01  

Implementation Dates

date of Ratification (DOR) (1) 2006-01-21
date of Availability (DAV) (2) 2007-05-16
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6) EN 60715:2001

(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.