EN 60034-8:2007

Rotating electrical machines - Part 8: Terminal markings and direction of rotation

Applies to a.c. and d.c. machines and specifies rules for the identification of winding connection points; marking of winding terminals; direction of rotation; relationship between terminal markings and direction of rotation; terminal marking of auxiliary devices; connection diagrams of machines for common applications. The main change with respect to the previous edition consists of changed terminal markings for d.c. machines.

Drehende elektrische Maschinen - Teil 8: Anschlussbezeichnungen und Drehsinn

Machines électriques tournantes - Partie 8: Marques d'extrémité et sens de rotation

S'applique aux machines à courant continu et à courant alternatif et spécifie les règles d'identification des points de couplage; le marquage des bornes d'enroulement; le sens de rotation; la relation entre les marques d'extrémité et le sens de rotation; les marques d'extrémité des appareils auxiliaires; les schémas de connexion des machines pour applications communes. La modification principale par rapport à l'édition précédente consiste du marquage des extrémités modifié pour les machines à courant continu.

Električni rotacijski stroji - 8. del: Oznake priključkov in smeri vrtenja (rotacije) (IEC 60034-8:2007)

General Information

• Status: Published
• Publication Date: 24-Jul-2007
• Withdrawal Date: 30-Jun-2010
• ICS: 29.160 - Rotating machinery
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Parallel Committee: IEC/TC 2 - IEC_TC_2
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 25-Jul-2007
• Completion Date: 25-Jul-2007
• 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: 2014/35/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
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: SIST EN 60034-8:2007 - Rotating electrical machines - Part 8: Terminal markings and direction of rotation (IEC 60034-8:2007)

Relations

• Replaces: EN 60034-8:2002 - Rotating electrical machines - Part 8: Terminal markings and direction of rotation
• Effective Date: 28-Jan-2023
• Amended By: EN 60034-8:2007/A1:2014 - Rotating electrical machines - Part 8: Terminal markings and direction of rotation
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2007
1DGRPHãþD
SIST EN 60034-8:2003
(OHNWULþQLURWDFLMVNLVWURMLGHO2]QDNHSULNOMXþNRYLQVPHULYUWHQMDURWDFLMH
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Rotating electrical machines - Part 8: Terminal markings and direction of rotation (IEC
60034-8:2007)
Drehende elektrische Maschinen - Teil 8: Anschlussbezeichnungen und Drehsinn (IEC
60034-8:2007)
Machines électriques tournantes - Partie 8: Marques d'extrémité et sens de rotation (CEI
60034-8:2007)
Ta slovenski standard je istoveten z: EN 60034-8:2007
ICS:
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60034-8
NORME EUROPÉENNE
July 2007
EUROPÄISCHE NORM
ICS 29.160 Supersedes EN 60034-8:2002

English version
Rotating electrical machines -
Part 8: Terminal markings and direction of rotation
(IEC 60034-8:2007)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 8: Marques d'extrémité Teil 8: Anschlussbezeichnungen
et sens de rotation und Drehsinn
(CEI 60034-8:2007) (IEC 60034-8:2007)

This European Standard was approved by CENELEC on 2007-07-01. 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: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-8:2007 E
Foreword
The text of document 2/1434/FDIS, future edition 3 of IEC 60034-8, prepared by IEC TC 2, Rotating
machinery, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60034-8 on 2007-07-01.
This European Standard supersedes EN 60034-8:2002.
The main change with respect to EN 60034-8:2002 is listed below:
– changed terminal markings for d.c. machines in Clause A.4.
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) 2008-04-01
– latest date by which the national standards conflicting
(dow) 2010-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60034-8:2007 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 60034-8:2007
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
1) 2)
IEC 60034-1 - Rotating electrical machines - EN 60034-1 2004
Part 1: Rating and performance

IEC 60417 Data Graphical symbols for use on equipment -
-
base
1) 2)
IEC 60445 (mod) - Basic and safety principles for man-machine EN 60445 2007
interface, marking and identification -
Identification of equipment terminals and
conductor terminations
1)
Undated reference.
2)
Valid edition at date of issue.

INTERNATIONAL IEC
STANDARD
CEI
60034-8
NORME
Third edition
INTERNATIONALE
Troisième édition
2007-06
Rotating electrical machines –
Part 8:
Terminal markings and direction of rotation

Machines électriques tournantes –
Partie 8:
Marques d’extrémité et sens de rotation
PRICE CODE
V
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur

– 2 – 60034-8 © IEC:2007
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references.8
3 Terms and definitions .8
4 Symbols.10
4.1 General.10
4.2 DC and single-phase commutator machines .10
4.3 AC machines without commutators.10
4.4 Auxiliary devices .11
5 Direction of rotation.11
6 Rules for terminal markings .11
6.1 General.11
6.2 Suffixes.12
6.3 Prefixes.13
6.4 Winding identification for categories of machines .13
6.5 Synchronous machines.14
6.6 DC machines.14
6.7 Relation between terminal markings and direction of rotation .14
6.8 Terminal marking figures .15
7 Auxiliary terminal marking rules.20
7.1 General.20
7.2 Marking.20

Annex A (normative) Connection diagrams for common applications.23

Figure 1 – Single three-phase winding, three elements, open connection, six terminals .15
Figure 2 – Single three-phase winding, delta connection, three terminals .16
Figure 3 – Single three-phase winding, internal star connection with neutral conductor,
four terminals.16
Figure 4 – Single three-phase winding, two elements per phase, open connection,
twelve terminals.16
Figure 5 – Single three-phase winding, four elements per phase, open connection,
twenty-four terminals .16
Figure 6 – Single three-phase winding, two elements per phase with four tapping
points per element, open connection, thirty-six terminals .17
Figure 7 – Two separate three-phase windings with two independent functions, two
elements per phase, open connection, twenty-four terminals .17
Figure 8 – Two elements, internal connection, three terminals .17
Figure 9 – Single three-phase winding, star connection, duplicate terminals for
alternate connection, six terminals.
Figure 10 – Single three-phase winding, star connection, parallel terminals for shared
current, six terminals .18

60034-8 © IEC:2007 – 3 –
Figure 11 – Three-phase wound-rotor, star connections with neutral conductors, eight
terminals.18
Figure 12 – Main and auxiliary winding, two elements.18
Figure 13 – Single-phase auxiliary winding, integrally connected capacitor, one
element .18
Figure 14 – Single-phase main winding, integrally connected thermal protector, one
element .18
Figure 15 – Six-phase winding, open connection, six elements .18
Figure 16 – Armature winding, one element .19
Figure 17 – Commutating winding, one and two elements .19
Figure 18 – Compensating winding, one and two elements .19
Figure 19 – Series winding, one element, two tappings.19
Figure 20 – Shunt excitation winding, one element .19
Figure 21 – Separately excited excitation winding, one and two elements.19
Figure 22 – Direct-axis auxiliary winding, one element.19
Figure 23 – Quadrature-axis auxiliary winding, one element .19
Figure 24 – Armature winding with commutating and compensating windings, one
element .19
Figure 25 – Single-phase, single voltage .20
Figure 26 – Single-phase, dual voltage .20
Figure 27 – Three-phase, single voltage .21
Figure 28 – Three-phase, dual voltage.21
Figure 29 – Two-lead devices (except type R) .21
Figure 30 – Two-lead devices of type R .21
Figure 31 – Three-lead devices of type R.22
Figure 32 – Four-lead devices of type R .22
Figure 33 – Switch connections .22
Figure A.1 – Delta connection.23
Figure A.2 – Star connection – with or without neutral .23
Figure A.3 – Dual voltage, six terminals (1:√3).23
Figure A.4 – Star-connected, dual voltage, nine terminals (1:2) .24
Figure A.5 – Delta-connected, dual voltage, nine terminals (1:2).24
Figure A.6 – Star-delta, single voltage, six terminals.24
Figure A.7 – Star-delta, dual voltage, twelve terminals (1:2) .25
Figure A.8 – Part-winding, single voltage, six terminals .25
Figure A.9 – Part-winding, dual voltage, nine terminals (1:2).26
Figure A.10 – Variable-torque, six terminals .
...