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



Reference CLC/TS 50509:2007
Title Use of LED signal heads in road traffic signal systems
Project Number 16585
Abstract/Scope This Technical Specification considers only newly manufactured and installed signal controllers and signal heads for road traffic applications, using appropriate cabling. This Technical Specification considers only LED optical units with 200 mm and 300 mm roundels as standardised in EN 12368. It does not consider configurations such as an arrow or a pedestrian symbol, created by specifically positioned patterns of LEDs. This Technical Specification does not consider railway signalling applications.


Current Stage code 6060
Current Stage code date 2007-08-03
Current Stage code deadline  
Deadline date for vote 2006-09-22


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 93.080.30 - Road equipment and installations
Keywords LED signal head; Road traffic signal
Note BTTF 69-3 to coordinate work with IEC/SC 34A which is developing IEC 62031 (to avoid overlapping)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2007-08-03   export to doc file  EN
5099 2007-06-01 2007-10-01  
5060 2007-05-21 2007-06-01 export to doc file  EN
5020 2007-02-16 2007-05-18 export to doc file  EN
3090 2006-11-20    
2020 2006-04-04 2006-09-30  
1099 2005-04-25 2005-10-30  
1000 2004-11-01 2005-05-01  

Implementation Dates

date of Ratification (DOR) (1) 2007-06-01
date of Availability (DAV) (2) 2007-08-03
date of Announcement (DOA) (3) 2007-12-01
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


(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Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn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.