SIST EN 60947-2:2006/A2:2013
(Amendment)Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-2:2006/A2:2013)
Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-2:2006/A2:2013)
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/A2:2013)
Appareillage à basse tension - Partie 2: Disjoncteurs (CEI 60947-2:2006/A2:2013)
Nizkonapetostne stikalne naprave - 2. del: Odklopniki (IEC 60947-2:2006/A2:2013)
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/A2:2013
01-julij-2013
Nizkonapetostne stikalne naprave - 2. del: Odklopniki (IEC 60947-2:2006/A2:2013)
Low-voltage switchgear and controlgear - Part 2: Circuit-breakers (IEC 60947-
2:2006/A2:2013)
Niederspannungsschaltgeräte - Teil 2: Leistungsschalter (IEC 60947-2:2006/A2:2013)
Appareillage à basse tension - Partie 2: Disjoncteurs (CEI 60947-2:2006/A2:2013)
Ta slovenski standard je istoveten z: EN 60947-2:2006/A2:2013
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 60947-2:2006/A2:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN 60947-2:2006/A2:2013
---------------------- Page: 2 ----------------------
SIST EN 60947-2:2006/A2:2013
EUROPEAN STANDARD
EN 60947-2/A2
NORME EUROPÉENNE
May 2013
EUROPÄISCHE NORM
ICS 29.130.20
English version
Low-voltage switchgear and controlgear -
Part 2: Circuit-breakers
(IEC 60947-2:2006/A2:2013)
Appareillage à basse tension - Niederspannungsschaltgeräte -
Partie 2: Disjoncteurs Teil 2: Leistungsschalter
(CEI 60947-2:2006/A2:2013) (IEC 60947-2:2006/A2:2013)
This amendment A2 modifies the European Standard EN 60947-2:2006; it was approved by CENELEC on
2013-03-07. 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 CEN-CENELEC Management Centre 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
CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60947-2:2006/A2:2013 E
---------------------- Page: 3 ----------------------
SIST EN 60947-2:2006/A2:2013
EN 60947-2:2006/A2:2013 - 2 -
Foreword
The text of document 17B/1796/FDIS, future edition 1 of IEC 60947-2:2006/A2, 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 approved by CENELEC as EN 60947-2:2006/A2:2013.
The following dates are fixed:
• latest date by which the document has (dop) 2013-12-07
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-03-07
• latest date by which the national
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this
document.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed
for Use within Certain Voltage Limits (LVD - 2006/95/EC).
Endorsement notice
The text of the International Standard IEC 60947-2:2006/A2:2013 was approved by CENELEC as a
European Standard without any modification.
---------------------- Page: 4 ----------------------
SIST EN 60947-2:2006/A2:2013
- 3 - EN 60947-2:2006/A2:2013
Replace the Annex ZZ of EN 60947-2:2006 by the following:
Annex ZZ
(informative)
Coverage of Essential Requirements of EU Directives
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and within its scope the standard covers
protection requirements of Annex I Article 1 of the EU Directive 2004/108/EC.
Compliance with this standard provides presumption of conformity with the specified essential
requirements of the Directives concerned.
NOTE: Other requirements and other EU Directives may be applicable to the products falling within the scope of this
standard.
---------------------- Page: 5 ----------------------
SIST EN 60947-2:2006/A2:2013
---------------------- Page: 6 ----------------------
SIST EN 60947-2:2006/A2:2013
IEC 60947-2
®
Edition 4.0 2013-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
AMENDMENT 2
AMENDEMENT 2
Low-voltage switchgear and controlgear –
Part 2: Circuit-breakers
Appareillage à basse tension –
Partie 2: Disjoncteurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 29.130.20 ISBN 978-2-83220-578-5
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN 60947-2:2006/A2:2013
– 2 – 60947-2 Amend. 2 IEC:2013
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/1796/FDIS 17B/1807/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 stability 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
_____________
CONTENTS
Delete the entry referring to Table 1.
1.1 Scope and object
Replace the existing item b)2) of this subclause by the following new item b)2):
2) operation and behaviour in case of overload and operation and behaviour in case of
short-circuit, including co-ordination in service (selectivity and back-up protection);
2 Definitions
2.17.1
over-current discrimination
Replace the existing term and definition by the following new term and definition, and delete
the source:
---------------------- Page: 8 ----------------------
SIST EN 60947-2:2006/A2:2013
60947-2 Amend. 2 IEC:2013 – 3 –
over-current selectivity
co-ordination of the operating characteristics of two or more over-current protective devices such that,
on the incidence of over-currents within stated limits, the device intended to operate within
these limits does so, while the other(s) does (do) not
2.17.2
total discrimination (total selectivity)
Replace the existing term by the following new term:
total selectivity
Replace in the existing definition the word “discrimination” by the word “selectivity”.
2.17.3
partial discrimination (partial selectivity)
Replace the existing term by the following new term:
partial selectivity
Replace in the existing definition the word “discrimination” by “selectivity”.
Renumber the existing definition 2.21, added by Amendment 1, as definition 2.22.
Add, after 2.20, the following new definition 2.21:
2.21
overload current setting
I
r
current setting of an adjustable overload release
NOTE In case of a non-adjustable overload release, this value is equal to nominal current I .
n
4.3.1.1 Rated operational voltage (U )
e
This correction does not apply to the English version.
)
4.3.5.1 Rated short-circuit making capacity (I
cm
This correction does not apply to the English version.
4.3.5.2 Rated short-circuit breaking capacities
This correction does not apply to the English version.
)
4.3.5.2.1 Rated ultimate short-circuit breaking capacity (I
cu
This correction does not apply to the English version.
)
4.3.5.2.2 Rated service short-circuit breaking capacity (I
cs
Replace the text of the existing subclause, including Table 1, by the following new text:
The rated service short-circuit breaking capacity of a circuit-breaker is the value of service
short-circuit breaking capacity (see 2.15.2) assigned to that circuit-breaker by the
manufacturer for the corresponding rated operational voltage, under the conditions specified
in 8.3.4. It is expressed as a value of prospective breaking current, in kA, or as a % of I
cu
(for example I = 25 % I ).
cs cu
---------------------- Page: 9 ----------------------
SIST EN 60947-2:2006/A2:2013
– 4 – 60947-2 Amend. 2 IEC:2013
I shall be at least equal to 25 % of I .
cs cu
Table 1 (void)
Table 4 – Selectivity categories
Replace the existing text of note 2 by the following new text:
NOTE 2 Vacant.
5.2 Marking
This correction does not apply to the English version.
Add, at the end of the existing item b), the following two new bulleted items:
• range of the current setting (I ) of adjustable overload release (see 4.7.3);
r
• value or range of the rated instantaneous short-circuit current setting (I ), fixed or
i
adjustable (see 4.7.3).
This correction does not apply to the English version.
Add, at the end of the existing item c), the following new bulleted items:
• minimum cable cross-section, if different from Table 9 of IEC 60947-1, for ratings ≤ 20 A
according to rated ultimate short-circuit breaking capacity I ;
cu
• values of tightening torque for the circuit-breaker terminals.
7.1.5 List of construction breaks
Replace the first dashed item by the following new dashed item:
– material, finish and dimensions of internal current-carrying parts, admitting, however, the
variations listed in a), b), c), f) and g) below;
Replace the item f) introduced by Amendment 1 by the following new item f):
f) in the case of the 2-pole and 4-pole variants, replacement of the trip unit in one pole by a
link, to provide an unprotected neutral;
Add, at the end of the existing list, the following new item g):
g) creating a 2-pole breaker from a 3-pole breaker by removing the centre current path.
8.3.1.2 Tests omitted from sequence I and made separately
Replace, in this subclause introduced by Amendment 1, the existing first dashed item by the
following new dashed item:
– 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, only on the phase poles at the
maximum setting, at room temperature and without the additional test of item b) to verify
the time-current characteristic;
---------------------- Page: 10 ----------------------
SIST EN 60947-2:2006/A2:2013
60947-2 Amend. 2 IEC:2013 – 5 –
8.3.1.4 Alternative test programmes for circuit-breakers having both three-pole and
four-pole variants
Replace the existing title and text of this subclause, introduced by Amendment 1, including
Table 9b and Table 9c, by the following new title, text and Table 9b, Table 9c:
8.3.1.4 Alternative test programmes for circuit-breakers of a given frame size and
design having a different number of poles
These alternative test programmes may only be applied when all ratings are the same or
lower than the variant submitted to the full programme of Table 9, and construction breaks are
the same for all variants. In the case of 1-pole circuit-breakers the voltage ratings shall be
equal to or lower than the line-to neutral voltage of the variant tested to Table 9. A 2-pole
circuit-breaker produced by removing the centre current path from a 3-pole circuit-breaker
tested to Programme 1 or Programme 2 of this clause need not be tested as it is considered
to be covered by the tests on the 3-pole variant.
Compliance with the test requirements is 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. In addition, where applicable, the tests or test sequences listed
in Table 9b shall be carried out on the other variants.
– Programme 2: The applicable test sequences according to Table 9 shall be carried out
on the four-pole variant. In addition, where applicable, the tests or test sequences listed in
Table 9c shall be carried out on the other variants.
The principle for the application of the alternative test programmes is illustrated below:
Programme 1 Programme 2
1-pole 2-poles 3-poles 4-poles 1-pole 2-poles 3-poles 4-poles
a
Construction 1
Construction 2
- - - - -
Construction 3
- - - - -
...
- - - - -
Construction n
- - - - -
NOTE
fully tested per Table 9
tested per Table 9b
tested per Table 9c
- no test required
a
construction 1 is the construction which covers the max rating.
---------------------- Page: 11 ----------------------
SIST EN 60947-2:2006/A2:2013
– 6 – 60947-2 Amend. 2 IEC:2013
Table 9b – Applicability of tests or test sequences to 1, 2 and 4-pole circuit-breakers
according to the alternative programme 1 of 8.3.1.4
Test Test clause Test Applicability to Applicability to
,
f h
sequence 1-pole or 2-pole
4-pole variant
g
variants
8.3.3.1 Test of tripping limits and characteristics
8.3.3.1.1 General X X
a e
8.3.3.1.2 Short-circuit releases X X
k
8.3.3.1.3a) Overload releases:
−instantaneous/definite time-delay X
or
k e
8.3.3.1.3b) X
−inverse time-delay
X
(as
applicable)
8.3.3.1.4 Additional test for definite time-delay releases:
8.3.3.2 Dielectric properties X X
8.3.3.3 Mechanical operation and operational performance capability
I
8.3.3.3.1 General X X
d d, e
8.3.3.3.2 Construction and mechanical operation X X
8.3.3.3.3 Operational performance capability without current X X
8.3.3.3.4 Operational performance capability with current X X
8.3.3.3.5 Withdrawable circuit-breakers X
8.3.3.4 Overload performance X X
8.3.3.5 Verification of dielectric withstand X X
8.3.3.6 Verification of temperature-rise X X
8.3.3.7 Verification of overload releases
8.3.3.8 Verification of undervoltage and shunt releases X X
8.3.3.9 Verification of the main contact position X X
II 8.3.4 Rated service short-circuit breaking capacity
b, c
Rated ultimate short-circuit breaking capacity
III X X
8.3.5
X
4th pole and
IV 8.3.6 Rated short-time withstand current adjacent pole
only
(see 8.3.2.6.4)
V 8.3.7 Performance of integrally fused circuit-breakers X X
VI 8.3.8 Combined test sequence
Annex C Individual pole short-circuit test sequence
Annex H Test sequence for circuit-breakers for IT systems
NOTE The applicability of a test or test sequence is indicated by X in the relevant space.
---------------------- Page: 12 ----------------------
SIST EN 60947-2:2006/A2:2013
60947-2 Amend. 2 IEC:2013 – 7 –
a
One test on one pair of phase poles chosen at random. In the case of an electronic trip unit, this test 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-poles variant is replaced by
Sequence II or Sequence VI (see Table 9).
c
One sample of maximum current rating only, tested at max kVA rating (I × corresponding U ).
cu e
d
Without verification tests of items c) (undervoltage releases) and d) (shunt releases).
e
Applicable only to 1-pole variant; not required for 2-poles variants.
f
In case of 4-poles devices with different levels of neutral protection (e.g. 60 % or 100 %), only the variant with the
highest level has to be tested according to Table 9b.
g
One sample of maximum current rating only, for each test sequence.
h
One sample of maximum current rating for each test sequence; in the case of one or more construction breaks (see
2.1.2 and 7.1.5) within the frame size, a further sample is tested at the maximum rated current corresponding to each
construction.
i
Vacant.
j
Vacant.
k
This test is not required for electronic trip units.
---------------------- Page: 13 ----------------------
SIST EN 60947-2:2006/A2:2013
– 8 – 60947-2 Amend. 2 IEC:2013
Table 9c – Applicability of tests or test sequences to 1, 2 and 3-pole circuit-breakers
according to the alternative programme 2 of 8.3.1.4
Test Test clause Test Applicability to Applicability to
g
sequence 3-pole variant 1-pole or 2-pole
g
variants
8.3.3.1 Test of tripping limits and characteristics
8.3.3.1.1 General X
e
8.3.3.1.2 Short-circuit releases X
k
8.3.3.1.3a) Overload releases:
- instantaneous/definite time-delay
or
k e
8.3.3.1.3b) - inverse time-delay X
(as
applicable)
8.3.3.1.4 Additional test for definite time-delay releases
8.3.3.2 Dielectric properties X X
8.3.3.3 Mechanical operation and operational performance capability
I
8.3.3.3.1 General X X
d, e
8.3.3.3.2 Construction and mechanical operation X
8.3.3.3.3 Operational performance capability without current X X
8.3.3.3.4 Operational performance capability with current X X
8.3.3.3.5 Withdrawable circuit-breakers
8.3.3.4 Overload performance X X
8.3.3.5 Verification of dielectric withstand X X
8.3.3.6 Verification of temperature-rise X X
8.3.3.7 Verification of overload releases
8.3.3.8 Verification of undervoltage and shunt releases X X
8.3.3.9 Verification of the main contact position X X
II 8.3.4 Rated service short-circuit breaking capacity
b, c
Rated ultimate short-circuit breaking capacity X
III X
8.3.5
IV 8.3.6 Rated short-time withstand current
V 8.3.7 Performance of integrally fused circuit-breakers X X
VI 8.3.8 Combined test sequence
Annex C Individual pole short-circuit test sequence
Annex H Test sequence for circuit-breaker for IT systems
NOTE The applicability of a test or test sequence is indi
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.