EN IEC 62271-106:2021

High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters

This part of IEC 62271 applies to AC contactors and/or contactor-based controllers and motorstarters designed for indoor installation and operation at frequencies up to and including 60 Hz on systems having voltages above 1 kV and up to and including 24 kV. This document also includes additional requirements for outdoor installations where the equipment is housed in an additional protective enclosure. It is applicable only to three-pole devices for use in three-phase systems, and single-pole devices for use in single-phase systems. Two-pole contactors and starters for use in single-phase systems are subject to agreement between manufacturer and user. Contactors and/or starters dealt with in this document typically do not have adequate short-circuit interruption capability. In this context, this document gives requirements for: - starters associated with separate short-circuit protective devices; - controllers - contactors combined with short-circuit protective devices (SCPD). Contactors intended for closing and opening electric circuits and, if combined with suitable relays, for protecting these circuits against operating overloads are covered in this document. This document is also applicable to the operating devices of contactors and to their auxiliary equipment. Motor-starters intended to start and accelerate motors to normal speed, to ensure continuous operation of motors, to switch off the supply from the motor and to provide means for the protection of motors and associated circuits against operating overloads are dealt with. Motor-starter types included are: - direct-on-line starters; - reversing starters; - two-direction starters; - reduced kVA (voltage) starters; - auto-transformer starters; - rheostatic starters; - reactor starters. This document does not apply to: - circuit-breaker-based motor-starters; - single-pole operation of multi-pole contactors or starters; - two-step auto-transformer starters designed for continuous operation in the starting position; - unbalanced rheostatic rotor starters, i.e. where the resistances do not have the same value in all phases; - equipment designed not only for starting, but also for adjustment of speed; - liquid starters and those of the "liquid-vapour" type; - semiconductor contactors and starters making use of semiconductor contactors in the main circuit; - rheostatic stator starters; - contactors or starters designed for special applications. This document does not deal with components contained in contactors and contactor-based motor-starters, for which individual specifications exist. NOTE 1 Thermal electrical relays are covered by IEC 60255-149. NOTE 2 High-voltage current-limiting fuses are covered by IEC 60282-1 and IEC 60644. NOTE 3 Metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV are covered by IEC 62271-200. NOTE 4 Disconnectors and earthing switches are covered by IEC 62271-102. NOTE 5 High-voltage switches above 1 kV and less than 52 kV are covered by IEC 62271-103. The object of this document is to state: a) the characteristics of contactors and starters and associated equipment; b) the conditions with which contactors or starters comply with reference to: 1) their operation and behaviour, 2) their dielectric properties, 3) the degrees of protection provided by their enclosures, where applicable, 4) their construction, 5) for controllers, interactions between the various components, for example SCPD co-ordination; c) the tests intended for confirming that these conditions have been met, and the methods to be adopted for these tests; d) the information to be given with the equipment or in the manufacturer's literature.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 106: Wechselstrom-Schütze, Kombinationsstarter und Motorstarter mit Schützen

Appareillage à haute tension - Partie 106: Contacteurs, combinés de démarrage à contacteurs et démarreurs de moteurs, pour courant alternatif

L'IEC 62271-106:2021 s'applique aux contacteurs à courant alternatif et/ou aux combinés de démarrage à contacteurs et démarreurs de moteurs conçus pour des installations intérieures et pour fonctionner à des fréquences inférieures ou égales à 60 Hz, dans des réseaux de tensions supérieures à 1 kV, mais qui n'excèdent pas 24 kV. Le présent document comprend également des exigences supplémentaires pour les installations en extérieur, les équipements étant alors installés dans une enveloppe de protection supplémentaire. Cette deuxième édition annule et remplace la première édition parue en 2011. Elle constitue une révision technique. Cette édition inclut la modification technique majeure suivante par rapport à l'édition précédente:  
le document a été renuméroté pour des raisons de cohérence avec l'IEC 62271-1:2017.  La présente version bilingue (2021-10) correspond à la version anglaise monolingue publiée en 2021-04. La version française de cette norme n'a pas été soumise au vote.

Visokonapetostne stikalne in krmilne narave - 106. del: Kontaktorji na izmenični tok, kontaktorski krmilniki in motorni starterji (IEC 62271-106:2021)

General Information

• Status: Published
• Publication Date: 03-Jun-2021
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: CLC/TC 17AC - High-voltage switchgear and controlgear
• Drafting Committee: IEC/SC 17A - IEC_SC_17A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 04-Jun-2021
• Completion Date: 04-Jun-2021
• Ref Project: SIST EN IEC 62271-106:2021 - High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters (IEC 62271-106:2021)

Relations

• Replaces: EN 62271-106:2011 - High-voltage switchgear and controlgear - Part 106: Alternating current contactors, contactor-based controllers and motor-starters
• Effective Date: 26-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2021
Nadomešča:
SIST EN 62271-106:2011
Visokonapetostne stikalne in krmilne narave - 106. del: Kontaktorji na izmenični
tok, kontaktorski krmilniki in motorni starterji (IEC 62271-106:2021)
High-voltage switchgear and controlgear - Part 106: Alternating current contactors,
contactor-based controllers and motor-starters (IEC 62271-106:2021)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 106: Wechselstrom-Schütze,
Kombinationsstarter und Motorstarter mit Schützen (IEC 62271-106:2021)
Appareillage à haute tension - Partie 106: Contacteurs, combinés de démarrage à
contacteurs et démarreurs de moteurs, pour courant alternatif (IEC 62271-106:2021)
Ta slovenski standard je istoveten z: EN IEC 62271-106:2021
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62271-106

NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2021
ICS 29.130.10 Supersedes EN 62271-106:2011 and all of its
amendments and corrigenda (if any)
English Version
High-voltage switchgear and controlgear - Part 106: Alternating
current contactors, contactor-based controllers and motor-
starters
(IEC 62271-106:2021)
Appareillage à haute tension - Partie 106: Contacteurs, Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
combinés de démarrage à contacteurs et démarreurs de 106: Wechselstrom-Schütze, Kombinationsstarter und
moteurs, pour courant alternatif Motorstarter mit Schützen
(IEC 62271-106:2021) (IEC 62271-106:2021)
This European Standard was approved by CENELEC on 2021-05-31. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-106:2021 E

European foreword
The text of document 17A/1296/FDIS, future edition 2 of IEC 62271-106, prepared by SC 17A
"Switching devices" of IEC/TC 17 "High-voltage switchgear and controlgear" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 62271-106:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-02-28
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-05-31
document have to be withdrawn
This document supersedes EN 62271-106:2011 and all of its amendments and corrigenda (if any).
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.
Endorsement notice
The text of the International Standard IEC 62271-106:2021 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60034-11 NOTE Harmonized as EN 60034-11
IEC 60060 (series) NOTE Harmonized as EN 60060 (series)
IEC 60255-149:2013 NOTE Harmonized as EN 60255-149:2013 (not modified)
IEC 62271-103 NOTE Harmonized as EN 62271-103
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where 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 60060-1 2010 High-voltage test techniques - Part 1: EN 60060-1 2010
General definitions and test requirements
IEC 60068-2-1 2007 Environmental testing - Part 2-1: Tests - EN 60068-2-1 2007
Test A: Cold
IEC 60068-2-2 2007 Environmental testing - Part 2-2: Tests - EN 60068-2-2 2007
Test B: Dry heat
IEC 60068-2-30 2005 Environmental testing - Part 2-30: Tests - EN 60068-2-30 2005
Test Db: Damp heat, cyclic (12 h + 12 h
cycle)
IEC 60076-2 - Power transformers - Part 2: Temperature EN 60076-2 -
rise for liquid-immersed transformers
IEC 60076-11 2018 Power transformers - Part 11: Dry-type EN IEC 60076-11 2018
transformers
IEC 60255-21-1 1988 Electrical relays - Part 21: Vibration, shock, EN 60255-21-1 1995
bump and seismic tests on measuring
relays and protection equipment - Section
One: Vibration tests (sinusoidal)
IEC 60282-1 - High-voltage fuses - Part 1: Current-limiting EN IEC 60282-1 -
fuses
IEC 60417 - Graphical symbols for use on equipment. - -
Index, survey and compilation of the single
sheets.
IEC 60644 - Specification for high-voltage fuse-links for EN 60644 -
motor circuit applications
IEC 60947-5-1 - Low-voltage switchgear and controlgear - EN 60947-5-1 -
Part 5-1: Control circuit devices and
switching elements - Electromechanical
control circuit devices
IEC 61000-4-18 2019 Electromagnetic compatibility (EMC) - Part EN IEC 61000-4-18 2019
4-18: Testing and measurement
techniques - Damped oscillatory wave
immunity test
Publication Year Title EN/HD Year
IEC 61230 - Live working - Portable equipment for EN 61230 -
earthing or earthing and short-circuiting
IEC 61812-1 - Time relays for industrial and residential EN 61812-1 -
use - Part 1: Requirements and tests
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC 62271-100 2021 High-voltage switchgear and controlgear - EN IEC 62271-100 2021
Part 100: Alternating-current circuit-
breakers
IEC 62271-102 2018 High-voltage switchgear and controlgear – EN IEC 62271-102 2018
Part 102: Alternating current disconnectors
and earthing switches
IEC 62271-110 2017 High-voltage switchgear and controlgear – EN IEC 62271-110 2018
Part 110: Inductive load switching
IEC 62271-200 2021 High-voltage switchgear and controlgear - EN IEC 62271-200 2021
Part 200: AC metal-enclosed switchgear
and controlgear for rated voltages above 1
kV and up to and including 52 kV

IEC 62271-106 ®
Edition 2.0 2021-04
INTERNATIONAL
STANDARD
High-voltage switchgear and controlgear –

Part 106: Alternating current contactors, contactor-based controllers and motor-

starters
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-9635-6

– 2 – IEC 62271-106:2021  IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 8
4 Normal and special service conditions . 23
5 Ratings . 24
6 Design and construction . 38
7 Type tests . 42
8 Routine tests . 70
9 Guide to the selection of contactors and motor-starters for service (informative) . 72
10 Information to be given with enquiries, tenders and orders (informative) . 76
11 Transport, storage, installation, operating instructions and maintenance. 78
12 Safety . 78
13 Influence of the product on the environment . 78
Annex A (normative) Identification of test objects . 79
Annex B (informative) Determination of the equivalent RMS value of a short-time
current during a short-circuit of a given duration . 80
Annex C (normative) Method for weatherproofing test for outdoor switchgear and
controlgear . 81
Annex D (informative) References for auxiliary and control circuit components . 82
Annex E (normative) Tolerances on test quantities during tests . 83
Annex F (informative) Information and technical requirements to be given with
enquires, tenders and orders . 88
Annex G (informative) List of symbols and abbreviations . 89
Annex H (informative) Electromagnetic compatibility on site . 90
Annex I (informative) List of notes concerning certain countries . 91
Annex J (informative) Extension of validity type tests . 92
Annex K (informative) Exposure to pollution . 93
Annex AA (normative) Records and reports of type tests for making, breaking and
short-time current performance . 94
Annex BB (normative) Disconnectors and earthing switches used in controllers . 98
Bibliography . 100

Figure 1 – Examples of speed/time curves . 32
Figure 2 – Representation by two parameters of a prospective TRV of a circuit . 60
Figure 3 – Representation of the specified TRV by a two-parameter reference line and
a delay line . 60
Figure 4 – Determination of power-frequency recovery voltage . 61
Figure 5 – Test duties A and B – preferred earth point . 63
Figure 6 – Test duties A and B – alternative earth point . 64
Figure 7 – Test duty C – preferred earth point . 64
Figure 8 – Test duty C – alternative earth point . 65
Figure 9 – Characteristics for determining take-over current . 66

IEC 62271-106:2021  IEC 2021 – 3 –
Figure BB.1 – Disconnector and earthing switch locations . 98

Table 1 – Ratings and characteristics . 25
Table 2 – Utilization categories . 31
Table 3 – Characteristics dependent on starter type . 37
Table 4 – Applicable type tests . 44
Table 5 – Intermittent duty operating cycles .
...