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



Reference EN 60947-4-3:2000/A2:2011
Title Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads
Project Number 22831
Abstract/Scope This part of EN 60947 applies to a.c. semiconductor non-motor load controllers and contactors intended for performing electrical opertions by changing the state of a.c. electric circuits between the ON-state and the OFF-state. As controllers, they may be used to reduce the amplitude of the r.m.s. a.c. voltage on the load terminals from that of the applied voltage - either continuously or for a specified period of time. The half-wave period of the a.c. wave form remains unchanged from that of the applied voltage. They may include a series mechanicall switching device and are intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c. The semiconductor controllers and contactors dealt with in this standard are not normally intended to interrupt short-circuit currents. Therefore, suitable short-circuit protection should form part of the installation but not necessarily of the controller itself. In this context, this standard gives requirements for semiconductor controllers and contactors associated with separate short-circuit protective devices.


Current Stage code 6060
Current Stage code date 2011-09-02
Current Stage code deadline 2012-01-18
Deadline date for vote  


Directive(s) LVD (2006/95/EC), EMC (2004/108/EC)
Mandate(s) M/404
Order Voucher  


IEC Technical Body IEC/SC 17B
Reference Document IEC 60947-4-3:1999/A2:2011 (EQV)
ICS 29.130.20 - Low voltage switchgear and controlgear
Keywords Switchgear; Controlgear; LV; Contactor; Motor-starter
Note 2011-03-25 - Publication editing allocated to
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2011-09-02 2012-01-18 export to doc file  EN  FR  DE
5099 2011-04-18 2011-05-16  
5060 2011-02-28 2011-03-18 export to doc file  EN
5020 2010-12-24 2011-02-25  
3090 2010-10-29 2010-12-31  
5060 2010-07-05 2010-07-19 export to doc file  EN
5020 2010-01-29 2010-07-02  
1090 2010-01-26 2010-01-29  

Implementation Dates

date of Ratification (DOR) (1) 2011-04-18
date of Availability (DAV) (2) 2011-09-02
date of Announcement (DOA) (3) 2011-07-18
date of Publication (DOP) (4) 2012-03-02
date of Withdrawal (DOW) (5) 2014-04-18


(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.