SIST EN 60947-2:2006/A1:2009
(Main)Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-2:2006/A1:2009)
Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-2:2006/A1:2009)
This standard applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers. It applies whatever the rated currents, the method of construction or the proposed applications of the circuit-breakers may be. The requirements for circuit-breakers which are also intended to provide earth-leakage protection are contained in Annex B. The additional requirements for circuit-breakers with electronic over-current protection are contained in Annex F. The additional requirements for circuit-breakers for IT systems are contained in Annex H. The requirements and test methods for electromagnetic compatibility of circuit-breakers are contained in Annex J. The requirements for circuit-breakers not fulfilling the requirements for over-current protection are contained in Annex L. The requirements for modular residual current devices (without integral current breaking device) are contained in Annex M. The requirements and test methods for electromagnetic compatibility of circuit-breaker auxiliaries are contained in Annex N. Supplementary requirements for circuit-breakers used as direct-on-line starters are given in IEC 60947-4-1, applicable to low-voltage contactors and starters. The requirements for circuit-breakers for the protection of wiring installations in buildings and similar applications, and designed for use by uninstructed persons, are contained in IEC 60898. The requirements for circuit-breakers for equipment (for example electrical appliances) are contained in IEC 60934. For certain specific applications (for example traction, rolling mills, marine service) particular or additional requirements may be necessary.
Niederspannungsschaltgeräte - Teil 2: Leistungsschalter (IEC 60947-2:2006/A1:2009)
Appareillage à basse tension - Partie 2: Disjoncteurs (CEI 60947-2:2006/A1:2009)
Nizkonapetostne stikalne naprave - 2. del: Odklopniki (IEC 60947-2:2006/A1:2009)
Ta standard se uporablja za odklopnike, katerih glavni kontakti so namenjeni za povezavo s tokokrogi, katerih nazivna napetost ne presega 1000 V izmenične ali 1500 V enosmerne napetosti, prav tako pa zajema dodatne zahteve za odklopnike z vgrajeno varovalko. Uporablja se ne glede na nazivne toke, metodo konstrukcije ali predlagano uporabo odklopnikov. Zahteve za odklopnike, ki varujejo pred zemeljskim uhajanjem, zajema dodatek A. Dodatne zahteve za odklopnike z elektronsko zaščito pred nadtokom zajema dodatek F. Dodatne zahteve za odklopnike za sisteme IT zajema dodatek H. Zahteve in preskusne metode za elektromagnetno združljivost odklopnikov zajema dodatek J. Zahteve za odklopnike, ki ne izpolnjujejo zahteve za zaščito pred nadtokom zajema dodatek L. Zahteve za modularne naprave s preostalim tokom (brez vgrajene odklopne naprave) zajema dodatek M. Zahteve in metode preskušanja za elektromagnetno združljivost dodatkov odklopnika zajema dodatek N. Dodatne zahteve za odklopnike, ki se uporabljajo kot neposredni zaganjalniki, so podane v standardu IEC 60947-4-1 ter veljajo za nizkonapetostne kontaktorje in zaganjalnike. Zahteve za odklopnike za zaščito žičnih inštalacij v stavbah ter podobne uporabe in odklopnike, ki jih bodo uporabljale nepoučene osebe, so zajete v standardu IEC 60898. Zahteve za odklopnike za opremo (npr. za električne aparate) so zajete v standardu IEC 60934. Za določene uporabe (npr. vleka, valjarne, storitve v marinah) lahko veljajo posebne ali dodatne zahteve.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60947-2:2006/A1:2009
01-oktober-2009
Nizkonapetostne stikalne naprave - 2. del: Odklopniki (IEC 60947-2:2006/A1:2009)
Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-
2:2006/A1:2009)
Niederspannungsschaltgeräte - Teil 2: Leistungsschalter (IEC 60947-2:2006/A1:2009)
Appareillage à basse tension - Partie 2: Disjoncteurs (CEI 60947-2:2006/A1:2009)
Ta slovenski standard je istoveten z: EN 60947-2:2006/A1:2009
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 60947-2:2006/A1:2009 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60947-2:2006/A1:2009
---------------------- Page: 2 ----------------------
SIST EN 60947-2:2006/A1:2009
EUROPEAN STANDARD
EN 60947-2/A1
NORME EUROPÉENNE
July 2009
EUROPÄISCHE NORM
ICS 29.130.20
English version
Low-voltage switchgear and controlgear -
Part 2: Circuit-breakers
(IEC 60947-2:2006/A1:2009)
Appareillage à basse tension - Niederspannungsschaltgeräte -
Partie 2: Disjoncteurs Teil 2: Leistungsschalter
(CEI 60947-2:2006/A1:2009) (IEC 60947-2:2006/A1:2009)
This amendment A1 modifies the European Standard EN 60947-2:2006; it was approved by CENELEC on
2009-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 amendment 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 60947-2:2006/A1:2009 E
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SIST EN 60947-2:2006/A1:2009
EN 60947-2:2006/A1:2009 – 2 –
Foreword
The text of document 17B/1636/FDIS, future amendment 1 to IEC 60947-2:2006, 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 amendment A1 to EN 60947-2:2006 on
2009-07-01.
The following dates were fixed:
– latest date by which the amendment has to be
implemented at national level by publication of
an identical national standard or by endorsement (dop) 2010-04-01
– latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2012-07-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of amendment 1:2009 to the International Standard IEC 60947-2:2006 was approved by
CENELEC as an amendment to the European Standard without any modification.
__________
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SIST EN 60947-2:2006/A1:2009
– 3 – EN 60947-2:2006/A1:2009
Replace Annex ZA of EN 60947-2:2006 by:
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60050-441 1984 International Electrotechnical Vocabulary - -
A1 2000 (IEV) -
Chapter 441: Switchgear, controlgear and
fuses
IEC 60051 Series Direct acting indicating analogue electrical EN 60051-1 Series
measuring instruments and their
accessories
IEC 60068-2-14 1984 Environmental testing -
+ A1 1986 Part 2: Tests - Test N: Change of EN 60068-2-14 1999
temperature
IEC 60068-2-30 2005 Environmental testing - EN 60068-2-30 2005
Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)
IEC 60364 (mod) Series Low-voltage electrical installations EN/HD 60364 Series
IEC 60417 Data- Graphical symbols for use on equipment - -
base
IEC 60617 Data- Graphical symbols for diagrams - -
base
IEC 60695-2-10 2000 Fire hazard testing - EN 60695-2-10 2001
Part 2-10: Glowing/hot-wire based test
methods - Glow-wire apparatus and common
test procedure
IEC 60695-2-11 2000 Fire hazard testing - EN 60695-2-11 2001
Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for end-products
IEC 60695-2-12 2000 Fire hazard testing - EN 60695-2-12 2001
Part 2-12: Glowing/hot-wire based test
methods - Glow-wire flammability test method
for materials
IEC 60695-2-13 2000 Fire hazard testing - EN 60695-2-13 2001
Part 2-13: Glowing/hot-wire based test
methods - Glow-wire ignitability test method
for materials
IEC/TR 60755 1983 General requirements for residual current - -
A1 1988 operated protective devices
A2 1992
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SIST EN 60947-2:2006/A1:2009
EN 60947-2:2006/A1:2009 – 4 –
Publication Year Title EN/HD Year
IEC 60898 (mod) Series Electrical accessories - Circuit breakers for EN 60898 Series
overcurrent protection for household and
similar installations
1) 2)
IEC 60934 - Circuit-breakers for equipment (CBE) EN 60934 2001
IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules
IEC 60947-4-1 2000 Low-voltage switchgear and controlgear - EN 60947-4-1 2001
A1 2002 Part 4-1: Contactors and motor-starters - A1 2002
A2 2005 Electromechanical contactors and motor- A2 2005
starters
IEC 61000-3-2 2005 Electromagnetic compatibility (EMC) - EN 61000-3-2 2006
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
IEC 61000-3-3 1994 Electromagnetic compatibility (EMC) - EN 61000-3-3 1995
Part 3-3: Limits - Limitation of voltage + corr. July 1997
A1 2001 changes, voltage fluctuations and flicker in A1 2001
A2 2005 public low-voltage supply systems, for A2 2005
equipment with rated current ≤ 16 A per phase
and not subject to conditional connection
3)
IEC 61000-4-2 1995 Electromagnetic compatibility (EMC) - EN 61000-4-2 1995
A1 1998 Part 4-2: Testing and measurement A1 1998
A2 2000 techniques - Electrostatic discharge immunity A2 2001
test
IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
Part 4-3: Testing and measurement
techniques - Radiated, radio-frequency,
electromagnetic field immunity test
IEC 61000-4-4 2004 Electromagnetic compatibility (EMC) - EN 61000-4-4 2004
Part 4-4: Testing and measurement
techniques - Electrical fast transient/burst
immunity test
IEC 61000-4-5 2005 Electromagnetic compatibility (EMC) - EN 61000-4-5 2006
Part 4-5: Testing and measurement
techniques - Surge immunity test
IEC 61000-4-6 2003 Electromagnetic compatibility (EMC) -
+ A1 2004 Part 4-6: Testing and measurement
+ A2 2006 techniques - Immunity to conducted EN 61000-4-6 2007
disturbances, induced by radio-frequency
fields
IEC 61000-4-11 2004 Electromagnetic compatibility (EMC) - EN 61000-4-11 2004
Part 4-11: Testing and measurement
techniques - Voltage dips, short interruptions
and voltage variations immunity tests
IEC 61000-4-13 2002 Electromagnetic compatibility (EMC) - EN 61000-4-13 2002
Part 4-13: Testing and measurement
techniques - Harmonics and interharmonics
including mains signalling at a.c. power port,
low frequency immunity tests
1)
Undated reference.
2)
Valid edition at date of issue.
3)
EN 61000-4-2 + A1 + A2 are superseded by EN 61000-4-2:2009, which is based on IEC 61000-4-2:2008.
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SIST EN 60947-2:2006/A1:2009
– 5 – EN 60947-2:2006/A1:2009
Publication Year Title EN/HD Year
IEC/TR 61000-5-2 1997 Electromagnetic compatibility (EMC) - - -
Part 5: Installation and mitigation guidelines -
Section 2: Earthing and cabling
IEC 61008-1 (mod) 1996 Residual current operated circuit-breakers
+ A1 (mod) 2002 without integral overcurrent protection for
4)
A2 2006 household and similar uses (RCCB's) - EN 61008-1 2004
Part 1: General rules + IS1 2007
+ A11 2007
+ A12 2009
IEC 61009-1 (mod) 1996 Residual current operated circuit-breakers
+ A1 (mod) 2002 with integral overcurrent protection for
+ corr. May 2003 household and similar uses (RCBO's) -
5)
A2 2006 Part 1: General rules EN 61009-1 2004
+ corr. July 2006
+ A11 2008
+ A12 2009
+ A13 2009
IEC 61131-1 2003 Programmable controllers - EN 61131-1 2003
Part 1: General information
CISPR 11 (mod) 2003 Industrial scientific and medical (ISM) radio-
+ A1 (mod) 2004 frequency equipment - Electromagnetic EN 55011 2007
A2 2006 disturbance characteristics - Limits and A2 2007
methods of measurement
CISPR 22 (mod) 2005 Information technology equipment - Radio EN 55022 2006
A1 2005 disturbance characteristics - Limits and A1 2007
A2 2006 methods of measurement
4)
The technical content of IEC/A2:2006 is included in EN 61008-1:2004.
5)
The technical content of IEC/A2:2006 is included in EN 61009-1:2004.
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SIST EN 60947-2:2006/A1:2009
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SIST EN 60947-2:2006/A1:2009
IEC 60947-2
®
Edition 4.0 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 1
AMENDEMENT 1
Low-voltage switchgear and controlgear –
Part 2: Circuit-breakers
Appareillage à basse tension –
Partie 2: Disjoncteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
U
CODE PRIX
ICS 29.130.20 ISBN 2-8318-1025-3
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 60947-2:2006/A1:2009
– 2 – 60947-2 Amend. 1 © IEC:2009
FOREWORD
This amendment has been prepared by subcommittee 17B: Low-voltage switchgear and
controlgear, of IEC technical committee 17: Switchgear and controlgear.
The text of this amendment is based on the following documents:
FDIS Report on voting
17B/1636/FDIS 17B/1651/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
_______________
Replace in the whole document "Utilization category" by "Selectivity category" except in
Annex L.
CONTENTS
Add the following:
8.5 Special tests – Damp heat, salt mist, vibration and shock
Insert the following:
Figure K.2 – Template for characteristics of cut-off current versus prospective current from
1 kA to 200 kA
Figure K.3 – Template for characteristics of cut-off current versus prospective current from
0,01 kA to 200 kA
Figure K.4 – Template for characteristics of let-through energy versus prospective current
from 1 kA to 200 kA
Figure K.5 – Template for characteristics of let-through energy versus prospective current
from 0,01 kA to 200 kA
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SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 3 –
Figure K.6 – Example of the use of template K.2
Figure K.7 – Example of the use of template K.4
Insert the following:
Table 9b – Applicability of tests or test sequences to four-pole circuit-breakers in a
given frame size and design when tested according to the alternative programme 1 of 8.3.1.4
Table 9c – Applicability of tests or test sequences to 3-pole circuit-breakers in a
given frame size and design when tested according to the alternative programme 2 of 8.3.1.4
1.2 Normative references
Delete the reference to IEC 60364-4-41:2001.
Add the following reference:
IEC 60417, Graphical symbols for use on equipment
IEC 60617, Graphical symbols for diagrams
Replace “IEC 60755:1983” by “IEC/TR 60755:1983”.
Replace the reference to IEC 60947-1:2004 by the following:
IEC 60947-1:2007, Low-voltage switchgear and controlgear – Part 1: General rules
Add, after IEC 60947-4-1:2000, the following reference:
Amendment 2 (2005)
Replace the reference to IEC 61000-3-2:2000 by the following:
IEC 61000-3-2:2005, Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for
harmonic current emissions (equipment input current ≤ 16 A per phase)
Add, after IEC 61000-3-3:1994, the following reference:
Amendment 2 (2005)
Replace the reference to IEC 61000-4-3:2002 by the following:
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SIST EN 60947-2:2006/A1:2009
– 4 – 60947-2 Amend. 1 © IEC:2009
IEC 61000-4-3:2006, Electromagnetic compatibility (EMC) – Part 4-3: Testing and
measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test
Replace the reference to IEC 61000-4-4:1995 by the following:
IEC 61000-4-4:2004, Electromagnetic compatibility (EMC) – Part 4-4: Testing and
measurement techniques – Electrical fast transient/burst immunity test
Replace the reference to IEC 61000-4-5:1995 by the following:
IEC 61000-4-5:2005, Electromagnetic compatibility (EMC) – Part 4-5: Testing and
measurement techniques – Surge immunity test
Add, after IEC 61000-4-6:2003, the following reference:
Amendment 2 (2006)
Replace “IEC 61000-5-2:1997” by “IEC/TR 61000-5-2:1997”.
Add, after IEC 61008-1:1996, the following reference:
Amendment 2 (2006)
Add, after IEC 61009-1:1996, the following reference:
Amendment 2 (2006)
Add, after IEC 61009-1:1996, the following reference:
IEC 61131-1:2003, Programmable controllers – Part 1: General information
Add, after CISPR 11:2003, the following reference:
Amendment 2 (2006)
Add, after CISPR 22:2005, the following reference:
Amendment 2 (2006)
2.3
current-limiting circuit-breaker
Replace the existing definition by the following:
circuit-breaker that, within a specified range of current, prevents the let-through current
2
reaching the prospective peak value and which limits the let-through energy (I t) to a value
less than the let-through energy of a half-cycle wave of the symmetrical prospective current
NOTE 1 Reference may be made to either the symmetrical or asymmetrical prospective peak value of let-through
current.
NOTE 2 The let-through current is also referred to as the cut-off current (see IEV 441-17-12).
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SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 5 –
NOTE 3 Templates for the graphical representation of the cut-off current characteristic and the let-through energy
characteristic are given in Figures K.2 to K.5 and examples of the use of the templates in Figures K.6 and K.7.
Add, after definition 2.20, the following new definition 2.21:
2.21
programmable logic controller
PLC
digitally operating electronic system, designed for use in an industrial environment, which
uses a programmable memory for the internal storage of user-oriented instructions for
implementing specific functions such as logic, sequencing, timing, counting and arithmetic, to
control, through digital or analogue inputs and outputs, various types of machines or
processes. Both the PLC and its associated peripherals are designed so that they can be
easily integrated into an industrial control system and easily used in all their intended
functions
[IEC 61131-1, definition 3.5]
3.8
Replace the reference to 7.1.11 of IEC 60947-1 by the reference to 7.1.12 of IEC 60947-1.
4.3.2.4 Current rating for four-pole circuit-breakers
Replace the reference to 7.1.8 of IEC 60947-1 by the reference to 7.1.9 of IEC 60947-1.
5.2 Marking
Replace, under item a), last bullet, the reference to 7.1.5.1 of IEC 60947-1 by the reference to
7.1.6.1 of IEC 60947-1.
Correct, under item b),7th bullet, the symbol with the symbol
Replace, under item b), 13th bullet, the reference to 7.1.9.3 of IEC 60947-1 by the reference
to 7.1.10.3 of IEC 60947-1.
Replace, under item e), the reference to 7.1.7.4 of IEC 60947-1 by the reference to 7.1.8.4 of
IEC 60947-1.
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SIST EN 60947-2:2006/A1:2009
– 6 – 60947-2 Amend. 1 © IEC:2009
7.1 Constructional requirements
Replace the five first paragraphs of the subclause by the following:
Subclause 7.1 of IEC 60947-1 applies. Where, in Subclause 7.1.2.2 of IEC 60947-1, the test
temperature is to be specified, the test temperature required by this standard is 960°C.
7.1.2 Additional requirements for circuit-breakers suitable for isolation
Replace, in the second paragraph, the reference to 7.1.6 of IEC 60947-1 by the reference to
7.1.7 of IEC 60947-1.
7.1.5 List of construction breaks
Add a new item f).
th
f) in the case of the 4-pole variant, replacement of the trip unit in the 4 pole by a link, to
provide an unprotected neutral.
7.1.6 Additional requirements for circuit-breakers provided with a neutral pole
Replace, in the first paragraph, the reference to 7.1.8 of IEC 60947-1 by the reference to
7.1.9 of IEC 60947-1.
Add, after Subclause 7.1.6, the following new Subclause 7.1.7:
7.1.7 Digital inputs and outputs for use with programmable logic controllers (PLCs)
Annex S of IEC 60947-1 applies. For the purposes of this standard this requirement does not
apply to digital inputs and outputs dedicated to devices other than PLCs.
8.1.1
Add, after the second dashed item, the following new third dashed item:
− special tests (see 8.5).
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SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 7 –
8.3.1 Test sequences
Replace the first four paragraphs of this subclause by the following:
8.3.1.1 General
Type tests are grouped together in a number of sequences, as shown in Table 9.
For each sequence, tests shall be made in the order listed unless otherwise specified in this
standard.
8.3.1.2 Tests omitted from sequence I and made separately
With reference to 8.1.1 of IEC 60947-1, the following tests of test sequence I (see 8.3.3) may
be omitted from the sequence and made on separate samples:
– tripping limits and characteristics (8.3.3.1); in which case the sample(s) tested in the
sequence shall be subjected to the tests of 8.3.3.1.3, at the maximum setting only and
without the additional test of item b) to verify the time-current characteristic;
– test of dielectric properties (8.3.3.2);
– test of under-voltage releases of 8.3.3.3.2 (item c) and 8.3.3.3.3, to verify the
requirements of 7.2.1.3 of IEC 60947-1, and tests of under-voltage releases at alternative
frequencies (see 8.3.2.1);
– test of shunt releases of 8.3.3.3.2 (item d) and 8.3.3.3.3, to verify the requirements of
7.2.1.4 of IEC 60947-1, and tests of shunt releases at alternative frequencies (see
8.3.2.1);
– additional tests for operational capability without current for withdrawable circuit-breakers
(8.3.3.3.5).
8.3.1.3 Applicability of sequences according to the relationship between short-circuit
ratings
The applicability of test sequences according to the relationship between I , I and I is
cs cu cw
given in Table 9a.
a
Table 9 – Overall schema of test sequences
Replace, in the fifth row (sequence V), third column:
– “Short-circuit at take-over current” by “Short-circuit at 1,1 times the take-over current”, and
– “Short-circuit at rated ultimate short-circuit braking capacity” by “Short-circuit at rated ultimate short-circuit
breaking capacity”.
Replace footnote b by:
b Except where Sequence VI is applied.
nd
dashed item by:
Replace, in footnote c, the 2
– where Sequence VI is applied
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SIST EN 60947-2:2006/A1:2009
– 8 – 60947-2 Amend. 1 © IEC:2009
Add, after Table 9a, the following new Subclause 8.3.1.4, Table 9b and Table 9c:
8.3.1.4 Alternative test programmes for circuit-breakers having both three-pole and
four-pole variants
These alternative test programmes may be applied when there is no construction break (see
7.1.5) between the poles of the four-pole variant and the poles of the three-pole variant.
Compliance with the test requirements may be met by carrying out one of the alternative
programmes 1 or 2 below.
– Programme 1: The applicable test sequences according to Table 9 shall be carried out
on the three-pole variant of the circuit-breaker. In addition, the tests or test sequences
listed in Table 9b shall be carried out on the four-pole variant.
– Programme 2: The applicable test sequences according to Table 9 shall be carried out
on the four-pole variant of the circuit-breaker. In addition, the tests or test sequences
listed in Table 9c shall be carried out on the three-pole variant.
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SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 9 –
Table 9b – Applicability of tests or test sequences to four-pole circuit-breakers in a
given frame size and design when tested according to the alternative programme 1 of
8.3.1.4
Test Test clause Test Four identical Fourth pole Fourth pole
sequence poles, neutral identified, neutral identified, neutral
identified or not unprotected protected rated
differently to the
(See Note 2 to
phase poles
8.3.1.4)
Test of tripping limits and
8.3.3.1
characteristics
8.3.3.1.1 General
8.3.3.1.2 Short-circuit releases X X X
one test on one one test on one i) one test on one
pair of poles pair of pair of
a
chosen at random phase poles phase poles
a a
chosen at random chosen at random
X
ii) one test on N
+ one phase pole
at random
Overload releases:
8.3.3.1.3 a) X X X
− instantaneous/definite
time-delay 3-phase 3-phase i) 3-phase poles
X
or ii) N
8.3.3.1.3 b) X X X
I
− inverse time-delay
3-phase 3-phase i) 3-phase poles
(as
applicable) X
ii) N
8.3.3.1.4 Additional test for definite
time-delay releases:
X
− overload releases
i) 3-phase poles
X
ii) N
X
− short-circuit releases
i) one test on one
pair of
phase poles
a
chosen at random
X
ii) one test on N
+ one phase pole
chosen at random
---------------------- Page: 17 ----------------------
SIST EN 60947-2:2006/A1:2009
– 10 – 60947-2 Amend. 1 © IEC:2009
Table 9b (continued)
Test Test clause Test Four identical Fourth pole Fourth pole
sequence poles, neutral identified, neutral identified, neutral
identified or not unprotected protected rated
differently to the
(See Note 2 to
phase poles
8.3.1.4)
8.3.3.2 Dielectric properties X X X
8.3.3.3 Mechanical operation and
operational performance
capability
8.3.3.3.1 General
Construction and
8.3.3.3.2 X X X
mechanical operation
Operational performance
8.3.3.3.3 X X X
capability without current
Operational performance
8.3.3.3.4 X X X
capability with current
Withdrawable circuit-
8.3.3.3.5 X X X
breakers
8.3.3.4 Overload performance X X X
Verification of dielectric
8.3.3.5 X X X
withstand
Verification of
8.3.3.6
X X X
temperature-rise
Verification of overload
8.3.3.7
releases
Verification of
8.3.3.8 undervoltage and shunt X X X
releases
Verification of the main
8.3.3.9 X X X
contact position
Rated service short-circuit
II 8.3.4
breaking capacity
b Rated ultimate short-
III X X X
8.3.5
circuit breaking capacity
X X X
Rated short-time 4th pole and 4th pole and 4th pole and
IV 8.3.6
withstand current adjacent pole only adjacent pole only adjacent pole only
(see 8.3.2.6.4) (see 8.3.2.6.4) (see 8.3.2.6.4)
Performance of integrally
V 8.3.7
fused circuit-breakers
VI 8.3.8 Combined test sequence
NOTE The applicability of a test or test sequence is indicated by X in the relevant space.
a
In the case of an electronic trip unit, these tests may be made on one pole chosen at random.
b
This test sequence also applies when, for the 3-pole testing, Sequence III on the 3-pole variant is replaced by
Sequence II or Sequence VI (see Table 9).
---------------------- Page: 18 ----------------------
SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 11 –
Table 9c – Applicability of tests or test sequences to 3-pole circuit-breakers in a
given frame size and design when tested according to the alternative programme 2 of
8.3.1.4
Test Test clause Test Test or
sequence sequence of
tests on 3-pole
variant
8.3.3.1 Test of tripping limits and characteristics
8.3.3.1.1 General
8.3.3.1.2 Short-circuit releases
Overload releases:
8.3.3.1.3 a)
− instantaneous/definite time-delay
or
− inverse time-delay
8.3.3.1.3 b)
(as
applicable)
8.3.3.1.4 Additional test for definite time-delay releases:
I − overload release
− short-circuit releases
8.3.3.2 Dielectric properties X
8.3.3.3 Mechanical operation and operational performance
capability
8.3.3.3.1 General
8.3.3.3.2 Construction and mechanical operation
8.3.3.3.3 Operational performance capability without current X
8.3.3.3.4 Operational performance capability with current X
8.3.3.3.5 Withdrawable circuit-breakers
8.3.3.4 Overload performance
X
8.3.3.5 Verification of dielectric withstand X
8.3.3.6 Verification of temperature-rise X
8.3.3.7 Verification of overload releases
8.3.3.8 Verification of undervoltage and shunt releases
8.3.3.9 Verification of the main contact position
II 8.3.4 Rated service short-circuit breaking capacity
b
Rated ultimate short-circuit breaking capacity
III X
8.3.5
IV 8.3.6 Rated short-time withstand current
V 8.3.7 Performance of integrally fused circuit-breakers
VI 8.3.8 Combined test sequence
NOTE The applicability of a test or test sequence is indicated by X in the relevant space.
a
In the case of an electronic trip unit, these tests may be made on one pole chosen at random.
b This test sequence also applies when, for the 4-pole testing, Sequence III on the 4-pole variant is
replaced by Sequence II or Sequence VI (see Table 9).
---------------------- Page: 19 ----------------------
SIST EN 60947-2:2006/A1:2009
– 12 – 60947-2 Amend. 1 © IEC:2009
8.3.2 General test conditions
Delete NOTE 1.
Renumber NOTE 2 as NOTE.
8.3.2.1 General requirements
Replace in the fifth paragraph the reference to Note 8 by Footnote g.
Replace the existing text of the eighth paragraph by the following:
Unless otherwise stated, the tests shall be made with the same kind of current and, in the
case of a.c., at the same rated frequency and with the same number of phases as in the
intended service. Tests performed at 50 Hz cover 60 Hz applications and vice-versa, except
for the performance of under-voltage and shunt releases (see 7.2.2 and 7.2.2.6 of
IEC 60947-1).
Replace in the 12th paragraph the reference to Note 1 by Footnote a.
Replace the existing Table 10 by the following new Table 10:
---------------------- Page: 20 ----------------------
SIST EN 60947-2:2006/A1:2009
60947-2 Amend. 1 © IEC:2009 – 13 –
Table 10 – Number of samples for test
Tem-
Number of Terminals Number
Sample Current perature- Foot-
marked marked of Test voltage Test current
a
Test
No. setting rise notes
U ratings line/load samples
e
sequence
verification
1 2 Mul. Yes No Min. Max. Corr. Max.
I X X X X X 1 1 X U max See 8.3.3 X g
e
1 X U X X h
e
X X 2
2 X U X b
e
1 X U X X h
e
X X 3 2 X U X b
e
II 3 X U X X j
e
(I )
cs
1 X U max corr. X X h
e
and
X X X 3 2 X U max corr. X b
e
VI
(combined) 3 X U max X X k
e
1 X U max corr. X X h
e
2 X U max corr. X b
e
X X X 4
3 X Uintermed.X X e
e
4 X U max X X k
e
1 X U X g
e
X X 2
2 X U X b
e
1 X U X g
e
X X 3
2 X U X b
e
3 X U X c
e
1 X U max corr. X g
e
III
(I )
cu
X X X 3
2 X U max corr. X b
e
3 X Umax X d
e
1 X U max corr. X g
e
2 X U max corr. X b
e
X X X 4
3 X Uintermed.X e
e
4 X U max X d
e
Tem-
Rated I
Number of Terminals Number cw
Sample Current perature- Foot-
marked marked of Test voltage
Test a
No. setting rise notes
Test
I ratings line/load samples
cw Time delay
...
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