SIST EN 60947-8:2003/A2:2012

Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines (IEC 60947-8:2003/A2:2011)

Specifies rules for control units, which perform the switching functions in response to the thermal detectors incorporated in rotating electrical machines according to IEC 60034-11, and the industrial application. It specifies rules for that type of system comprising a positive temperature coefficient (PTC) thermistor detector having particular characteristics, and its associated control unit. The PT100 detectors are covered by IEC 60751, where the resistor values are given according to the temperatures of the detector. The present rules lay down the characteristics of association of this particular positive temperature coefficient thermistor detector and its associated control unit (designated "Mark A detector"" and "Mark A control unit""), when they are used in thermal protection systems. NOTE It is not possible to specify all the requirements for the operating characteristics of a control unit, as they are dependent on some aspects of the thermal detectors. Some aspects of the requirements of the thermal protector system can only be specified when account is taken of the characteristics of the rotating machine to be protected and the method of installation of the detector within the machine. For these reasons, for each characteristic it is necessary to specify who is responsible for stating the required values and who is responsible for compliance with the requirement and for carrying out any confirmatory test.

Niederspannungsschaltgeräte - Teil 8: Auslösegeräte für den eingebauten thermischen Schutz (PTC) von rotierenden elektrischen Maschinen (IEC 60947-8:2003/A2:2011)

Appareillage à basse tension - Partie 8: Unités de commande pour la protection thermique incorporée (CTP) aux machines électriques tournantes (CEI 60947-8:2003/A2:2011)

Nizkonapetostne stikalne naprave - 8. del: Krmilne enote za vgrajeno toplotno zaščito (PTC) rotacijskih električnih strojev (IEC 60947-8:2003/A2:2011)

Določa pravila za krmilne enote, ki opravljajo stikalne funkcije kot odziv na toplotne detektorje, vgrajene v rotacijske električne stroje v skladu s standardom IEC 60034-11, in industrijsko uporabo. Določa pravila za to vrsto sistema s termistorskim detektorjem s pozitivnim temperaturnim koeficientom (PTC) s posebnimi značilnostmi in z njim povezano krmilno enoto. Detektorji PT100 so zajeti v standardu IEC 60751, pri čemer so vrednosti upora podane v skladu s temperaturami detektorja. Ta pravila določajo značilnosti povezave tega termistorskega detektorja s pozitivnim temperaturnim koeficientom in z njim povezane krmilne enote (pri čemer sta označena kot »detektor z oznako A« in »krmilna enota z oznako A«), kadar se uporabljata v toplotnih zaščitnih sistemih. OPOMBA Vseh zahtev za obratovalne značilnosti krmilne enote ni mogoče določiti, saj so odvisne od nekaterih vidikov toplotnih detektorjev. Nekatere vidike zahtev toplotnega zaščitnega sistema je mogoče določiti le ob upoštevanju značilnosti rotacijskega stroja, ki bo zaščiten, in metode vgradnje detektorja v stroj. Zato je treba za vsako značilnost določiti, kdo je odgovoren za navedbo zahtevanih vrednosti, skladnost z zahtevo in izvedbo morebitnih potrditvenih preskusov.

General Information

• Status: Published
• Publication Date: 09-Jul-2012
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: SKA - Switchgear and control gear
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 03-Jul-2012
• Due Date: 07-Sep-2012
• Completion Date: 10-Jul-2012
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/30/EU - Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Ref Project: EN 60947-8:2003/A2:2012 - Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines

Relations

• Amends: SIST EN 60947-8:2003 - Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
• Effective Date: 01-Sep-2012
• Revised: SIST EN IEC 60947-8:2023 - Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines (IEC 60947-8:2021)
• Effective Date: 20-Feb-2023
• Amends: SIST EN 60947-8:2003 - Low-voltage switchgear and controlgear -- Part 8: Control units for built-in thermal protection (PTC) for rotating electrical machines
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60947-8:2003/A2:2012
01-september-2012
1L]NRQDSHWRVWQHVWLNDOQHQDSUDYHGHO.UPLOQHHQRWH]DYJUDMHQRWRSORWQR
]DãþLWR37&URWDFLMVNLKHOHNWULþQLKVWURMHY,(&$
Low-voltage switchgear and controlgear - Part 8: Control units for built-in thermal
protection (PTC) for rotating electrical machines (IEC 60947-8:2003/A2:2011)
Niederspannungsschaltgeräte - Teil 8: Auslösegeräte für den eingebauten thermischen
Schutz (PTC) von rotierenden elektrischen Maschinen (IEC 60947-8:2003/A2:2011)
Appareillage à basse tension - Partie 8: Unités de commande pour la protection
thermique incorporée (CTP) aux machines électriques tournantes (CEI 60947-
8:2003/A2:2011)
Ta slovenski standard je istoveten z: EN 60947-8:2003/A2:2012
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST EN 60947-8:2003/A2:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60947-8:2003/A2:2012

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SIST EN 60947-8:2003/A2:2012

EUROPEAN STANDARD
EN 60947-8/A2

NORME EUROPÉENNE
June 2012
EUROPÄISCHE NORM

ICS 29.130.20


English version


Low-voltage switchgear and controlgear -
Part 8: Control units for built-in thermal protection (PTC) for rotating
electrical machines
(IEC 60947-8:2003/A2:2011)


Appareillage à basse tension -  Niederspannungsschaltgeräte -
Partie 8: Unités de commande pour la Teil 8: Auslösegeräte für den eingebauten
protection thermique incorporée (CTP) thermischen Schutz (PTC) von
aux machines électriques tournantes rotierenden elektrischen Maschinen
(CEI 60947-8:2003/A2:2011) (IEC 60947-8:2003/A2:2011)





This amendment A2 modifies the European Standard EN 60947-8:2003; it was approved by CENELEC on 2011-
06-22. 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, 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


© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60947-8:2003/A2:2012 E

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SIST EN 60947-8:2003/A2:2012
EN 60947-8:2003/A2:2012 - 2 -
Foreword
The text of document 17B/1732/FDIS, future edition 1 of IEC 60947-8:2003/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 60947-8:2003/A2:2012.
The following dates are fixed:
• latest date by which the document has
(dop) 2012-12-29
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national
(dow) 2014-06-22
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. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed
for Use within Certain Voltage Limits (LVD - 2006/95/EC)

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(s) see informative Annex ZZ, which is an integral part of this
document.
__________
Endorsement notice
The text of the International Standard IEC 60947-8:2003/A2:2011 was approved by CENELEC as a
European Standard without any modification.
__________

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SIST EN 60947-8:2003/A2:2012
- 3 - EN 60947-8:2003/A2:2012
Replace Annex ZA of EN 60947-8:2003/A1:2006 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 60034-11 2004 Rotating electrical machines - EN 60034-11 2004
Part 11: Thermal protection


IEC 60068-2-1 - Environmental testing - EN 60068-2-1 -
Part 2-1: Tests - Test A: Cold


1)
IEC 60068-2-6 1995 Environmental testing - EN 60068-2-6 1995
+ corr. March 1995 Part 2: Tests - Test Fc: Vibration (sinusoidal)


2)
IEC 60068-2-27 1987 Basic environmental testing procedures - EN 60068-2-27 1993
Part 2: Tests - Test Ea and guidance: Shock


IEC 60410 1973 Sampling plans and procedures for inspection - -
by attributes


3)
IEC 60738-1 1998 Thermistors - Directly heated positive step- EN 60738-1 1999
function temperature coefficient -
Part 1: Generic specification


4) 5)
IEC 60751 1983 Industrial platinum resistance thermometer EN 60751 1995
+ A1 1986 sensors - -

+ A2 1995 + A2 1995


IEC 60947-1 2007 Low-voltage switchgear and controlgear - EN 60947-1 2007
Part 1: General rules


IEC 60947-5-1 2003 Low-voltage switchgear and controlgear - EN 60947-5-1 2004
Part 5-1: Control circuit devices and switching + corr. July 2005
elements - Electromechanical control circuit
devices


IEC 61000-4-2 2008 Electromagnetic compatibility (EMC) - EN 61000-4-2 2009
Part 4-2: Testing and measurement
techniques - Electrostatic discharge immunity
test


IEC 61000-4-3 2006 Electromagnetic compatibility (EMC) - EN 61000-4-3 2006
+ A1 2007 Part 4-3: Testing and measurement + A1 2008
+ A2 2010 techniques - Radiated, radio-frequency, + A2 2010
electromagnetic field immunity test



1)
EN 60068-2-6 is superseded by EN 60068-2-6:2008, which is based on IEC 60068-2-6:2007.
2)
EN 60068-2-27 is superseded by EN 60068-2-27:2009, which is based on IEC 60068-2-27:2008.
3)
EN 60738-1 is superseded by EN 60738-1:2006, which is based on IEC 60738-1:2006.
4)
EN 60751 includes A1 to IEC 60751.
5)
EN 60751 is superseded by EN 60751:2008, which is based on IEC 60751:2008.

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SIST EN 60947-8:2003/A2:2012
EN 60947-8:2003/A2:2012 - 4 -
Publication Year Title EN/HD Year
IEC 61000-4-4 2004 Electromagnetic compatibility (EMC) - EN 61000-4-4 2004
+ A1 2010 Part 4-4: Testing and measurement + A1 2010
techniques - Electrical fast transient/burst
immunity test


IEC 61000-4-5 2005 Electromagnetic compatibility (EMC) - EN 61000-4-5 2006
+ corr. October 2009 Part 4-5: Testing and measurement
techniques - Surge immunity test


IEC 61000-4-6 2008 Electromagnetic compatibility (EMC) - EN 61000-4-6 2009
Part 4-6: Testing and measurement
techniques - Immunity to conducted
disturbances, induced by radio-frequency
fields


IEC 61000-4-8 2009 Electromagnetic compatibility (EMC) - EN 61000-4-8 2010
Part 4-8: Testing and measurement
techniques - Power frequency magnetic field
immunity test


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
+ A1 2009 Part 4-13: Testing and measurement + A1 2009
techniques - Harmonics and interharmonics
including mains signalling at a.c. power port,
low frequency immunity tests


IEC 60417 Graphical symbols for use on equipment - -
Data-
base


CISPR 11 (mod) 2009 Industrial, scientific and medical equipment - EN 55011 2009
+ A1 2010 Radio-frequency disturbance characteristics - + A1 2010
Limits and methods of measurement


CISPR 22 (mod) 2008 Information technology equipment - Radio EN 55022 2010
disturbance characteristics - Limits and
methods of measurement

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SIST EN 60947-8:2003/A2:2012
- 5 - EN 60947-8:2003/A2:2012
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 all
relevant essential requirements as given in Article 1 of Annex I of the Directive 2004/108/EC.
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING - Other requirements and other EU Directives may be applicable to the products falling within
the scope of this standard.

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SIST EN 60947-8:2003/A2:2012

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SIST EN 60947-8:2003/A2:2012
IEC 60947-8
®


Edition 1.0 2011-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2


Low-voltage switchgear and controlgear –
Part 8: Control units for built-in thermal protection (PTC) for rotating electrical
machines

Appareillage à basse tension –
Partie 8: Unités de commande pour la protection thermique incorporée (CTP)
aux machines électriques tournantes

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ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
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