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SIST EN 60947-3:2009
01-september-2009
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SIST EN 60947-3:2000
SIST EN 60947-3:2000/A1:2002
SIST EN 60947-3:2000/A2:2006
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Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-
disconnectors and fuse-combination units (IEC 60947-3:2008)
Niederspannungsschaltgeräte - Teil 3: Lastschalter, Trennschalter, Lasttrennschalter und
Schalter-Sicherungs-Einheiten (IEC 60947-3:2008)
Appareillage à basse tension - Partie 3: Interrupteurs, sectionneurs, interrupteurs-
sectionneurs et combinés-fusibles (CEI 60947-3:2008)
Ta slovenski standard je istoveten z: EN 60947-3:2009
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 60947-3:2009 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60947-3:2009
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SIST EN 60947-3:2009
EUROPEAN STANDARD
EN 60947-3
NORME EUROPÉENNE
June 2009
EUROPÄISCHE NORM
ICS 29.120.40; 29.130.20 Supersedes EN 60947-3:1999 + A1:2001 + A2:2005
English version
Low-voltage switchgear and controlgear -
Part 3: Switches, disconnectors, switch-disconnectors
and fuse-combination units
(IEC 60947-3:2008)
Appareillage à basse tension - Niederspannungsschaltgeräte -
Partie 3: Interrupteurs, sectionneurs, Teil 3: Lastschalter, Trennschalter,
interrupteurs-sectionneurs Lasttrennschalter
et combinés-fusibles und Schalter-Sicherungs-Einheiten
(CEI 60947-3:2008) (IEC 60947-3:2008)
This European Standard was approved by CENELEC on 2009-05-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60947-3:2009 E
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SIST EN 60947-3:2009
EN 60947-3:2009 - 2 -
Foreword
The text of document 17B/1601/FDIS, future edition 3 of IEC 60947-3, prepared by SC 17B, Low-voltage
switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 60947-3 on 2009-05-01.
This European Standard supersedes EN 60947-3:1999 + A1:2001 + A2:2005.
EN 60947-3:2009 includes the following significant technical changes with respect to EN 60947-3:1999:
– alignment with EN 60947-1:2007;
– a switching operation without current allowed between making and breaking operation (Table 3);
– increased number of operations for AC-23 allowed with agreement of the manufacturer (Table 3);
– simplified test procedure amended, f) added to 8.3.2.1.3;
– temperature rise test shall be made at the rated operational current Ie instead of the conventional
enclosed thermal current Ithe (8.3.3.1).
This part is to be used in conjunction with EN 60947-1.The numbering of the subclauses is sometimes not
continuous because it is based on EN 60947-1.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-05-01
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive EMC (2004/108/EC). See Annex ZZ.
Annexes ZA and ZZ have been added b
...