IEC 60077-4:2019

Railway applications - Electric equipment for rolling stock - Part 4: Electrotechnical components - Rules for AC circuit-breakers

IEC 60077-4:2019 is available as IEC 60077-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60077-4:2019 gives rules for AC circuit-breakers, the main contacts of which are connected to AC overhead contact lines; the nominal voltage of these circuits being in accordance with IEC 60850. This document, together with IEC 60077-2, states specifically:
a) the characteristics of the circuit-breakers;
b) the service conditions with which circuit-breakers comply with reference to:
- operation and behaviour in normal service;
- operation and behaviour in short-circuit;
- dielectric properties;
c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests
d). the information to be marked on, or given with the circuit-breaker.
This second edition cancels and replaces the first edition, issued in 2003. This edition includes the following main technical changes with regard to the previous edition:
a) standard values of transient recovery voltages and test procedure are reviewed;
b) procedure of verification of temperature rise is changed;
c) air-tightness test as type test, insulation resistance measurement are added

Applications ferroviaires - Equipements électriques du matériel roulant - Partie 4: Composants électrotechniques - Règles pour disjoncteurs à courant monophasé

IEC 60077-4:2019 est disponible sous forme de IEC 60077-4:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L' IEC 60077-4:2019 donne les règles relatives aux disjoncteurs à courant monophasé dont les contacts principaux sont destinés à être raccordés à des lignes aériennes de contact à courant monophasé. La tension nominale de ces circuits est conforme à l'IEC 60850. En complément de l'IEC 60077-2, le présent document précise particulièrement:
a) les caractéristiques des disjoncteurs;
b) les conditions de service que les disjoncteurs supportent du point de vue:
- du fonctionnement et du comportement en service normal;
- du fonctionnement et du comportement en cas de court-circuit;
- des propriétés diélectriques;
c) les essais de conformité des composants avec les caractéristiques dans les conditions de service ainsi que les méthodes d'essai correspondantes à utiliser;
d) les informations à donner ou à marquer sur le disjoncteur.
Cette deuxième édition annule et remplace la première édition, parue en 2003. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) les valeurs normalisées des tensions transitoires de rétablissement et la procédure d'essai sont revues;
b) modification de la procédure de vérification de l'échauffement;
c) ajout de l'essai d'étanchéité comme essai de type et du mesurage de la résistance d'isolement.

General Information

• Status: Published
• Publication Date: 24-Oct-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: MT 60077 - TC 9/MT 60077
• Current Stage: PPUB - Publication issued
• Start Date: 08-Nov-2019
• Completion Date: 25-Oct-2019

Relations

• Revises: IEC 60077-4:2003 - Railway applications - Electric equipment for rolling stock - Part 4: Electrotechnical components - Rules for AC circuit-breakers
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60077-4 ®
Edition 2.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Railway applications – Electric equipment for rolling stock –
Part 4: Electrotechnical components – Rules for AC circuit-breakers

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
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and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
IEC 60077-4 ®
Edition 2.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Railway applications – Electric equipment for rolling stock –

Part 4: Electrotechnical components – Rules for AC circuit-breakers

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 45.060.01 ISBN 978-2-8322-7566-5

– 2 – IEC 60077-4:2019 RLV © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION .
1 Scope . 7
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 8
3.1 Components . 9
3.2 Component parts . 10
3.3 Operational features . 11
3.4 Making and breaking characteristics . 11
3.5 Abbreviated terms . 14
4 Classification . 14
5 Characteristics . 14
5.1 Summary of characteristics . 14
5.2 Type of circuit-breaker . 15
5.3 Rated values and limiting values for the main circuit . 15
5.3.1 General . 15
5.3.2 Rated voltages . 15
5.3.3 Rated currents . 15
5.3.4 Rated frequencies Rated operational frequency . 16
5.3.5 Rated power factors. 16
5.3.6 Short-circuit characteristics (see also Annex B) . 16
5.4 Operational frequencies . 18
5.5 Electric and pneumatic control circuits . 19
5.6 Electric and pneumatic auxiliary circuits . 19
5.7 Overcurrent release . 19
5.8 Recovery voltages . 19
6 Product information . 19
6.1 Component documentation . 19
6.2 Marking . 19
7 Normal service conditions . 19
8 Constructional and performance requirements . 20
8.1 Constructional requirements . 20
8.2 Performance requirements . 20
8.2.1 Operating conditions . 20
8.2.2 Temperature rise limits . 20
8.2.3 Operation following inactivity . 20
8.2.4 Electromagnetic compatibility (EMC) . 20
8.2.5 Acoustic noise emission . 20
8.2.6 Dielectric properties Clearances . 20
8.2.7 Creepage distances . 20
8.2.8 Switching overvoltages . 20
8.2.9 Operational performance capability . 20
8.2.10 Ability to withstand vibration and shock . 21
8.2.11 Ability to make and break under short-circuit conditions . 21
9 Tests . 21

9.1 Kind of tests . 21
9.1.1 General . 21
9.1.2 Type tests . 22
9.1.3 Routine tests . 22
9.1.4 Investigatory Investigation tests . 22
9.2 Tests for Verification of constructional requirements . 22
9.2.1 General . 22
9.2.2 Type tests . 22
9.2.3 Routine tests . 22
9.3 Type tests for verification of performance requirements . 23
9.3.1 Test sequences . 23
9.3.2 General test conditions . 23
9.3.3 Test sequence I: General performance characteristics . 24
9.3.4 Test sequence II: Rated short-circuit making and breaking capacities . 26
9.3.5 Test sequence III: Capability Ability to withstand vibration and shock . 28
Test sequence IV: Transient recovery voltage test .
9.3.6 Test sequence IV: Climatic conditions . 29
9.3.7 Test sequence VI: Other tests. 29
9.4 Routine tests for verification of performance requirements . 29
9.4.1 General . 29
9.4.2 Mechanical operation Functional test . 30
9.4.3 Calibration of releases . 30
9.4.4 Air-tightness (for pneumatic circuit-breaker) . 30
9.4.5 Dielectric withstand . 30
Annex A (informative) Test circuit to verify the making and breaking capacities . 31
Annex B (informative) Determination of short-circuit making and breaking currents,
and of percentage DC component . 32
Bibliography . 33

Figure A.1 – Principle Diagram of the test circuit . 31
Figure B.1 – Determination of short-circuit making and breaking currents, and of
percentage DC components . 32

Table – Determination of voltage for impulse test .
Table 1 – Standard values of transient recovery voltage – Representation by two
parameters . 18
Table 2 – Operational performance capability . 21
Table 3 – List of type test sequences for performance requirements . 23
Table 4 – Tolerances on test values . 24
Table 5 – Standard values of prospective transient recovery voltage – Representation
by two parameters . 27

– 4 – IEC 60077-4:2019 RLV © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS –
ELECTRIC EQUIPMENT FOR ROLLING STOCK –

Part 4: Electrotechnical components –
Rules for AC circuit-breakers
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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee
...

IEC 60077-4 ®
Edition 2.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Electric equipment for rolling stock –
Part 4: Electrotechnical components – Rules for AC circuit-breakers

Applications ferroviaires – Équipements électriques du matériel roulant –
Partie 4: Composants électrotechniques – Règles pour disjoncteurs
à courant monophasé
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
A propos de l'IEC
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publication ou si vous avez des questions contactez-nous:
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IEC 60077-4 ®
Edition 2.0 2019-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Electric equipment for rolling stock –

Part 4: Electrotechnical components – Rules for AC circuit-breakers

Applications ferroviaires – Équipements électriques du matériel roulant –

Partie 4: Composants électrotechniques – Règles pour disjoncteurs

à courant monophasé
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060.01 ISBN 978-2-8322-7508-5

– 2 – IEC 60077-4:2019 © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Components . 7
3.2 Component parts . 8
3.3 Operational features . 9
3.4 Making and breaking characteristics . 10
3.5 Abbreviated terms . 12
4 Classification . 12
5 Characteristics . 13
5.1 Summary of characteristics . 13
5.2 Type of circuit-breaker . 13
5.3 Rated values and limiting values for the main circuit . 13
5.3.1 General . 13
5.3.2 Rated voltages . 13
5.3.3 Rated currents . 13
5.3.4 Rated operational frequency . 14
5.3.5 Rated power factors. 14
5.3.6 Short-circuit characteristics . 14
5.4 Operational frequencies . 16
5.5 Electric and pneumatic control circuits . 16
5.6 Electric and pneumatic auxiliary circuits . 17
5.7 Overcurrent release . 17
5.8 Recovery voltages . 17
6 Product information . 17
6.1 Component documentation . 17
6.2 Marking . 17
7 Normal service conditions . 17
8 Constructional and performance requirements . 17
8.1 Constructional requirements . 17
8.2 Performance requirements . 18
8.2.1 Operating conditions . 18
8.2.2 Temperature limits . 18
8.2.3 Operation following inactivity . 18
8.2.4 Electromagnetic compatibility (EMC) . 18
8.2.5 Acoustic noise emission . 18
8.2.6 Clearances . 18
8.2.7 Creepage distances . 18
8.2.8 Switching overvoltages . 18
8.2.9 Operational performance capability . 18
8.2.10 Ability to withstand vibration and shock . 19
8.2.11 Ability to make and break under short-circuit conditions . 19
9 Tests . 19
9.1 Kind of tests . 19

9.1.1 General . 19
9.1.2 Type tests . 20
9.1.3 Routine tests . 20
9.1.4 Investigation tests . 20
9.2 Verification of constructional requirements . 20
9.2.1 General . 20
9.2.2 Type tests . 20
9.2.3 Routine tests . 20
9.3 Type tests for verification of performance requirements . 20
9.3.1 Test sequences . 20
9.3.2 General test conditions . 21
9.3.3 Test sequence I: General performance characteristics . 22
9.3.4 Test sequence II: Rated short-circuit making and breaking capacities . 23
9.3.5 Test sequence III: Ability to withstand vibration and shock . 25
9.3.6 Test sequence IV: Climatic conditions . 26
9.3.7 Test sequence V: Other tests . 26
9.4 Routine tests for verification of performance requirements . 26
9.4.1 General . 26
9.4.2 Functional test . 26
9.4.3 Calibration of releases . 27
9.4.4 Air-tightness (for pneumatic circuit-breaker) . 27
9.4.5 Dielectric withstand . 27
Annex A (informative) Test circuit to verify the making and breaking capacities . 28
Annex B (informative) Determination of short-circuit making and breaking currents,
and of percentage DC component . 29
Bibliography . 30

Figure A.1 – Diagram of the test circuit .
...