EN 60034-12:2017

SLOVENSKI STANDARD
01-januar-2018
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SIST EN 60034-12:2002
SIST EN 60034-12:2002/A1:2007
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Rotating electrical machines - Part 12: Starting performance of single-speed three-phase
cage induction motors (IEC 60034-12:2016)
Drehende elektrische Maschinen - Teil 12: Anlaufverhalten von Drehstrommotoren mit
Käfigläufer ausgenommen polumschaltbare Motoren (IEC 60034-12:2016)
Machines électriques tournantes - Partie 12: Caractéristiques de démarrage des moteurs
triphasés à induction à cage à une seule vitesse (IEC 60034-12:2016)
Ta slovenski standard je istoveten z: EN 60034-12:2017
ICS:
29.160.30 Motorji Motors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60034-12

NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2017
ICS 29.160 Supersedes EN 60034-12:2002
English Version
Rotating electrical machines - Part 12: Starting performance of
single-speed three-phase cage induction motors
(IEC 60034-12:2016)
Machines électriques tournantes - Partie 12: Drehende elektrische Maschinen - Teil 12: Anlaufverhalten
Caractéristiques de démarrage des moteurs triphasés à von Drehstrommotoren mit Käfigläufer ausgenommen
induction à cage à une seule vitesse polumschaltbare Motoren
(IEC 60034-12:2016) (IEC 60034-12:2016)
This European Standard was approved by CENELEC on 2016-12-28. 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 CEN-CENELEC
Management Centre 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 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60034-12:2017 E
European foreword
The text of document 2/1789/CDV, future edition 3 of IEC 60034-12, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2017-12-16
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with (dow) 2020-06-16
the document have to be withdrawn

This document supersedes EN 60034-12:2002.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC 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.
Endorsement notice
The text of the International Standard IEC 60034-12:2016 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-30-1 -  Rotating electrical machines - Part 30-1: EN 60034-30-1 -
Efficiency classes of line operated AC
motors (IE code)
IEC 60079-7 2015 Explosive atmospheres -- Part 7: EN 60079-7 2015
Equipment protection by increased safety
"e"
IEC 60034-12 ®
Edition 3.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –

Part 12: Starting performance of single-speed three-phase cage induction

motors
Machines électriques tournantes –

Partie 12: Caractéristiques de démarrage des moteurs triphasés à induction à

cage à une seule vitesse
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.01 ISBN 978-2-8322-3768-7

− 2 − IEC 60034-12:2016  IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols . 7
5 Designation . 7
5.1 General . 7
5.2 Design N . 7
5.3 Design NE . 7
5.4 Designs NY and NEY . 7
5.5 Design H . 7
5.6 Design HE . 8
5.7 Designs HY and HEY . 8
6 Design N requirements . 8
6.1 Torque characteristics . 8
6.2 Locked rotor current and apparent power . 8
6.3 Starting requirements . 8
7 Design NE starting requirements . 9
8 Designs NY and NEY starting requirements . 9
9 Design H requirements . 9
9.1 Starting torque . 9
9.2 Locked rotor current and apparent power . 9
9.3 Starting requirements . 9
10 Design HE starting requirements . 10
11 Designs HY and HEY starting requirements . 10

Table 1 – Minimum values of torques for design N . 10
Table 2 – Maximum values of locked rotor apparent power for designs N and H . 11
Table 3 – Maximum values of locked rotor apparent power for designs NE and HE . 11
Table 4 – External moment of inertia (J) . 12
Table 5 – Minimum values of torques for design H . 13
Table 6 – Minimum values of torques for design N motors with type of protection 'Ex
eb – increased safety' . 13
Table 7 – External moment of inertia (J) for motors with type of protection 'Ex eb –
increased safety' . 14

IEC 60034-12:2016  IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ROTATING ELECTRICAL MACHINES –

Part 12: Starting performance of single-speed
three-phase cage induction motors

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60034-12 has been prepared by IEC technical committee 2:
Rotating machinery.
This third edition cancels and replaces the second edition, published in 2002, and its
amendment 1, published in 2007. It constitutes a technical revision.

− 4 − IEC 60034-12:2016  IEC 2016
The main technical changes with regard to the previous edition are as follows:
Clause or
Change
subclause
1 Part of note 3 moved to the regular text
3 Definition of locked rotor current and of rated voltag
...