IEC 61076-2-010:2021

Connectors for electrical and electronic equipment - Product requirements - Part 2-010: Circular connectors - Detail specification for connectors with outer or inner push-pull locking mechanism, based on mating interfaces according to IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 and IEC 61076-2-113

IEC 61076-2-010:2021 specifies circular connectors with a push-pull locking mechanism of a size derived from, and thus being compatible with M12 screw-locking connectors (free connectors with screw-locking according to IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 or IEC 61076-2-113 are compatible with push‑pull fixed interfaces according to this document) and with mating interfaces according to IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 (except codings E in general and coding F for inner push-pull) or IEC 61076-2-113.
A fixed connector with push-pull locking according to this document is intermateable with a correspondingly coded free connector with M12 screw-locking according to any of the above mentioned standards.
M12 is the dimension of the thread of the screw-locking mechanism of circular connectors with M12 screw-locking.
IEC 61076-2-012 defines another inner push-pull for fixed female connectors which is however not compatible to the inner push-pull defined in this document. Annex C shows the different styles of female free connectors to extend male free connectors.
This document covers both:
a) power connectors with current ratings up to 16 A and voltage ratings up to 630 V, typically used for power supply and power applications in industrial premises, and
b) connectors for data and signal transmission with frequencies up to 500 MHz.
These connectors consist of both, fixed and free connectors, either rewirable or non-rewirable, with M12 push-pull locking as explained above. Male connectors have round contacts from Ø 0,6 mm up to Ø 1,5 mm. In addition, the push-pull mechanisms consist of 2 different push-pull designs:
c) An outer push-pull for male and female fixed connector, where the locking groove is placed onto the outer cylindric surface of the housing. The outer push-pull for female fixed connectors is made for 2 different types of male connectors. It has locking means for both types on its outer surface.
For design and dimensions see 5.3.2 and 5.3.3.
d) An inner push-pull for female fixed connectors and for male free connectors, where the locking means are placed onto the inner cylindric surface of the housing.
For design and dimensions see 5.3.4.
The different codings provided by IEC 61076-2 series detail specifications mentioned within this document prevent the mating of accordingly coded male or female connectors to any other similarly sized interfaces, covered by other standards and the cross-mating between the different codings provided by any other IEC 61076-2 series detail specification mentioned within this document.

Connecteurs pour équipements électriques et électroniques - Exigences de produit - Partie 2-010: Connecteurs circulaires - Spécification particulière relative aux connecteurs avec mécanisme de verrouillage de type pousser-tirer externe ou interne, basés sur des interfaces d’accouplement conformes à l’IEC 61076‑2‑101, l’IEC 61076‑2‑109, l’IEC 61076‑2‑111 et l’IEC 61076‑2‑113

IEC 61076-2-010:2021 spécifie les connecteurs circulaires pourvus d’un mécanisme de verrouillage de type pousser-tirer dont la taille est dérivée des connecteurs M12 avec verrouillage à vis (les fiches avec verrouillage à vis conformes à l’IEC 61076‑2‑101, l’IEC 61076-2-109, l’IEC 61076-2-111 ou l’IEC 61076‑2‑113 sont compatibles avec les interfaces d’embase de type pousser-tirer conformes au présent document) et d’interfaces d’accouplement conformes à l’IEC 61076‑2‑101, l’IEC 61076-2-109, l’IEC 61076-2-111 (sauf les détrompages E en général et le détrompage F pour les verrouillages internes de type pousser-tirer) ou l’IEC 61076-2-113.
Une embase avec verrouillage de type pousser-tirer conforme au présent document est accouplable avec une fiche présentant le détrompage correspondant avec un verrouillage à vis M12, conformément à l’une quelconque des normes susmentionnées.
M12 désigne la dimension du filetage du mécanisme de verrouillage à vis des connecteurs circulaires avec verrouillage à vis M12.
L’IEC 61076-2-012 définit un autre verrouillage interne de type pousser-tirer pour les embases femelles, qui n’est cependant pas compatible avec le verrouillage interne de type pousser-tirer défini dans le présent document. L’Annexe C donne les différents modèles de fiches femelles adaptables sur les fiches mâles.
Le présent document couvre à la fois:
a) les connecteurs d’alimentation avec des courants assignés allant jusqu’à 16 A et des tensions assignées allant jusqu’à 630 V, généralement employés pour des applications d’alimentation et de puissance dans des locaux industriels, et
b) les connecteurs pour les transmissions de données et de signaux avec des fréquences allant jusqu’à 500 MHz.
Ces connecteurs se composent à la fois d’embases et de fiches, démontables ou non démontables, avec un verrouillage de type pousser-tirer M12 comme expliqué précédemment. Les connecteurs mâles possèdent des contacts arrondis d’un diamètre compris entre Ø 0,6 mm et Ø 1,5 mm. De plus, les mécanismes pousser-tirer présentent 2 conceptions différentes:
c) un mécanisme pousser-tirer externe pour les embases mâle et femelle, dont la rainure de verrouillage est placée sur la surface cylindrique extérieure du boîtier. Le mécanisme pousser-tirer externe pour embases femelles est conçu pour 2 types différents de connecteurs mâles. Il possède des dispositifs de verrouillage pour ces deux types de connecteurs sur sa surface extérieure;
Pour la conception et les dimensions, voir 5.3.2 et 5.3.3.
d) un mécanisme pousser-tirer interne pour les embases femelles et les fiches mâles, dont les dispositifs de verrouillage sont placés sur la surface cylindrique intérieure du boîtier.
Pour la conception et les dimensions, voir 5.3.4.
Les différents détrompages prévus par les spécifications particulières de la série IEC 61076-2 et mentionnés dans le présent document, empêchent l’accouplement de connecteurs mâles et femelles avec de tels détrompeurs avec une quelconque autre interface de taille semblable couverte par d’autres normes, ainsi que l’accouplement croisé entre les différents détrompages prévus par une quelconque autre spécification particulière de la série IEC 61076-2 mentionnée dans le présent document.

General Information

• Status: Published
• Publication Date: 26-May-2021
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 27-May-2021
• Completion Date: 11-Jun-2021

Relations

• Replaces: IEC PAS 61076-2-010:2020 - Connectors for electrical and electronic equipment - Product requirements - Part 2-010: Circular connectors - Detail specification for push-pull connectors with locking mechanism, based on mating interfaces according to IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 and IEC 61076-2-113
• Effective Date: 05-Sep-2023

Overview

IEC 61076-2-010:2021 is an international standard that specifies detailed requirements for circular connectors with outer or inner push-pull locking mechanisms. These connectors are designed to be compatible with M12 screw-locking connectors based on the mating interfaces defined by IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111, and IEC 61076-2-113. The standard addresses both fixed and free connectors with push-pull locking systems, providing enhanced ease of use and secure connections for electrical and electronic equipment.

By defining the mechanical, electrical, and transmission characteristics along with dimensional specifications, IEC 61076-2-010 supports reliable connector interoperability and performance in industrial and data transmission applications.

Key Topics

• Push-Pull Locking Mechanisms
  The standard distinguishes between two push-pull designs:

  • Outer push-pull locking: Locking groove located on the external cylindrical surface of the connector housing, applicable to both male and female fixed connectors.
  • Inner push-pull locking: Locking means located on the internal cylindrical surface, mainly for female fixed connectors and male free connectors.

• Compatibility with M12 Connectors
  The connectors specified are size-compatible with M12 screw-locking connectors. Fixed connectors with push-pull locking can intermate with free connectors with screw-locking mechanisms per IEC 61076-2 series standards. This interoperability simplifies integration with existing M12 systems.

• Power and Signal Transmission
  IEC 61076-2-010 covers two main connector categories:

  • Power connectors rated up to 16 A and voltages up to 630 V, suitable for industrial power supply applications.
  • Connectors for signal and data transmission frequencies up to 500 MHz, catering to modern communication needs in automation and control systems.

• Connector Variants
  The standard includes provisions for various connector types, including:

  • Rewirable and non-rewirable connectors
  • Male connectors featuring round contacts ranging from 0.6 mm to 1.5 mm diameter
  • Different mounting styles such as front or rear mounting with threads M16 × 1.5 or M20 × 1.5, and flange options.

• Prevention of Cross-Mating
  Codings defined across the IEC 61076-2 series ensure that connectors with different coding cannot be incorrectly mated, enhancing system reliability and safety.

• Testing and Performance Levels
  The standard includes comprehensive test schedules for mechanical endurance, electrical load, climatic resistance, vibration, shock, and chemical resistivity to guarantee robust connector performance in diverse operational environments.

Applications

IEC 61076-2-010 connectors with push-pull locking mechanisms are widely used in:

• Industrial Automation
  Providing reliable power and data connections in factory automation, robotics, and process control systems.

• Transportation Systems
  Ensuring secure electrical connections in rail, automotive, and aerospace equipment requiring rapid and secure mating/unmating.

• Data and Signal Transmission
  Supporting high-frequency data links in measurement, control, and communication technologies with robust connectors.

• Power Supply Networks
  Facilitating safe and efficient power distribution in industrial premises, minimizing downtime through quick locking/unlocking via push-pull mechanisms.

• Harsh Environments
  Suitable for applications requiring IP-rated protection against dust, water ingress, vibration, and shock, ensuring high reliability and durability.

Related Standards

• IEC 61076-2-101: Free connectors with M12 screw-locking mechanism (general product requirements).
• IEC 61076-2-109: Detailed specifications for connectors used in industrial automation.
• IEC 61076-2-111: Specifications covering connectors with unique codings and transmission characteristics.
• IEC 61076-2-113: Connector details for specific industrial and data communication scenarios.
• IEC 61076-2-012: Defines another inner push-pull locking system for fixed female connectors, which is not compatible with IEC 61076-2-010 push-pull design.

These standards collectively ensure a broad and interoperable ecosystem of M12 and related circular connectors optimized for electrical and electronic equipment across industries.

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Keywords: IEC 61076-2-010, circular connectors, push-pull locking mechanism, M12 connectors, electrical connectors, electronic connectors, industrial connectors, power connectors, data transmission connectors, IEC standards, connector compatibility, electrical equipment connectors, connector locking systems, industrial automation connectors.

Standards Content (Sample)

IEC 61076-2-010 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Product requirements –
Part 2-010: Circular connectors – Detail specification for connectors with outer
or inner push-pull locking mechanism, based on mating interfaces according to
IEC 61076‑2‑101, IEC 61076‑2‑109, IEC 61076‑2‑111 and IEC 61076‑2‑113

Connecteurs pour équipements électriques et électroniques – Exigences de
produit –
Partie 2-010: Connecteurs circulaires – Spécification particulière relative aux
connecteurs avec mécanisme de verrouillage de type pousser-tirer externe ou
interne, basés sur des interfaces d’accouplement conformes à l’IEC 61076‑2‑101,
l’IEC 61076‑2‑109, l’IEC 61076‑2‑111 et l’IEC 61076‑2‑113

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IEC 61076-2-010 ®
Edition 1.0 2021-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Product requirements –

Part 2-010: Circular connectors – Detail specification for connectors with outer

or inner push-pull locking mechanism, based on mating interfaces according to

IEC 61076‑2‑101, IEC 61076‑2‑109, IEC 61076‑2‑111 and IEC 61076‑2‑113

Connecteurs pour équipements électriques et électroniques – Exigences de

produit –
Partie 2-010: Connecteurs circulaires – Spécification particulière relative aux

connecteurs avec mécanisme de verrouillage de type pousser-tirer externe ou

interne, basés sur des interfaces d’accouplement conformes à

l’IEC 61076‑2‑101, l’IEC 61076‑2‑109, l’IEC 61076‑2‑111 et l’IEC 61076‑2‑113

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.10 ISBN 978-2-8322-9812-1

– 2 – IEC 61076-2-010:2021 © IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 10
2 Normative references . 11
3 Terms and definitions . 12
4 Technical information . 13
4.1 System of levels. 13
4.1.1 Performance levels . 13
4.1.2 Compatibility levels, according to IEC 61076-1 . 13
4.2 Classification into climatic categories . 13
4.3 Contact terminations . 13
4.4 Available connector codings . 13
4.5 Ratings . 15
4.6 Marking . 15
4.7 Safety aspects . 15
5 Dimensional information . 15
5.1 General . 15
5.2 Survey of styles and variants . 15
5.2.1 General . 15
5.2.2 Fixed connectors . 15
5.2.3 Free connectors . 22
5.3 Interface dimension . 31
5.3.1 General . 31
5.3.2 Outer push-pull locking: male fixed connector side view . 32
5.3.3 Outer push-pull locking: female fixed connector side view with details
and engage-plane definition for male free cable connectors type 1 and 2 . 33
5.3.4 Inner push-pull locking: female fixed connector side view and male free
connector side view with details for both . 36
5.4 Gauges – Sizing gauges and retention force gauges . 39
6 Characteristics . 39
6.1 Classification into climatic category . 39
6.2 Electrical characteristics . 39
6.2.1 Voltage proof . 39
6.2.2 Rated voltage – Rated impulse voltage – Pollution degree . 39
6.2.3 Current-carrying capacity . 40
6.2.4 Contact resistance . 40
6.2.5 Insulation resistance. 40
6.2.6 Transmission performance . 40
6.3 Mechanical characteristics . 40
6.3.1 Mating interface . 40
6.3.2 Push-pull locking mechanism . 41
6.4 Other characteristics . 42
6.4.1 Vibration (sinusoidal) . 42
6.4.2 Shock . 42
6.4.3 Degree of protection provided by enclosures (IP code) . 42
7 Test schedule . 42
7.1 General . 42

7.2 Test schedule . 43
7.2.1 Test group P – Preliminary . 43
7.2.2 Test group AP – Dynamic/climatic . 43
7.2.3 Test group BP – Mechanical endurance . 43
7.2.4 Test group CP – Electrical load . 44
7.2.5 Test group DP – Chemical resistivity . 44
7.2.6 Test group EP – Connection method tests . 44
7.2.7 Test group FP – Electrical transmission requirements . 44
Annex A (informative) Diameter and position of the female connector body . 45
A.1 Diameter of the female connector body . 45
A.2 Position of female connector body for connectors with outer push-pull
locking . 45
A.3 Position of female connector body for connectors with inner push-pull
locking . 46
Annex B (informative) Example for L-coded connector and comparison between

screw- and inner push-pull-locking . 48
Annex C (informative) Styles of female free connectors to extend free male cable
connectors . 50

Figure 1 – Tube insert, male contacts, thread for M12 screw locking on tube . 17
Figure 2 – Fixed connector, male contacts, with M12 screw locking and outer push-pull

locking, square flange front mounting. 17
Figure 3 – Fixed connector, male contacts, with M12 screw locking and outer push-pull
locking, with wire ends, single hole front mounting thread M16 × 1,5 . 18
Figure 4 – Fixed connector, male contacts, with M12 screw locking and outer push-pull
locking, with wire ends, single hole front mounting thread M20 × 1,5 . 18
Figure 5 – Fixed connector, female contacts, with M12 screw locking and outer push-

pull locking, with wire ends, single hole front mounting thread M16 × 1,5 . 19
Figure 6 – Fixed connector, female contacts, with M12 screw locking and outer push-
pull locking, with wire ends, single hole front mounting thread M20 × 1,5 . 19
Figure 7 – Fixed connector, female contacts, with M12 screw locking and outer push-
pull locking, with wire ends, single hole front mounting thread M16 × 1,5 and mounting
orientation . 20
Figure 8 – Fixed connector, female contacts, with M12 screw locking and outer push-
pull locking, with wire ends, single hole rear mounting thread M16 × 1,5 . 20
Figure 9 – Fixed connector, female contacts, with M12 screw locking and inner push-
pull locking, with wire ends, single hole front mounting thread M16 × 1,5 . 21
Figure 10 – Fixed connector, female contacts, with M12 screw locking and inner push-
pull locking, with wire ends, single hole front mounting thread M20 × 1,5 . 21
Figure 11 – Fixed connector, female contacts, with M12 screw locking and inner push-
pull locking, with wire ends, single hole front mounting thread M16 × 1,5 and mounting
orientation . 22
Figure 12 – Fixed connector, female contacts, with M12 screw locking and inner push-

pull locking, with wire ends, single hole rear mounting thread M16 × 1,5 . 22
Figure 13 – Rewirable connector, male contacts, straight version, with outer push-pull
locking . 23
Figure 14 – Rewirable connector, male contacts, angled version, with outer push-pull
locking . 24
Figure 15 – Non-rewirable connector, male contacts, straight version, with outer push

pull locking . 24

– 4 – IEC 61076-2-010:2021 © IEC 2021
Figure 16 – Non-rewirable connector, male contacts, angled version, with outer push-
pull locking . 25
Figure 17 – Rewirable connector, female contacts, straight version, with outer push-

pull locking . 26
Figure 18 – Rewirable connector, female contacts, angled version, with outer push-pull
locking . 27
Figure 19 – Non-rewirable connector, female contacts, straight version, with outer
push-pull locking . 28
Figure 20 – Non-rewirable connector, female contacts, angled version, with outer push-

pull locking . 28
Figure 21 – Rewirable connector, male contacts, straight version, with inner push-pull
locking . 29
Figure 22 – Rewirable connector, male contacts, angled version, with inner push-pull
locking . 30
Figure 23 – Non-rewirable connector, male contacts, straight version, with inner push-

pull locking . 30
Figure 24 – Non-rewirable connector, male contacts, angled version, with inner push-
pull locking . 31
Figure 25 – Outer push-pull locking: male fixed connector side view . 32
Figure 26 – Outer push-pull locking: female fixed connector side view with details and
engage-plane definition for male free cable connector . 34
Figure 27 – Inner push-pull-locking: female fixed connector side view and male free
connector side view with details for both . 37
Figure A.1 – Diameter of the female connector body . 45
Figure A.2 – Position of the female insulating body for connectors with outer push-pull
locking . 46
Figure A.3 – Female fixed connector side view and position of insulating body . 47
Figure B.1 – Dimensions for L-coded interface dimensions according to
IEC 61076-2-111 . 48

Table 1 – Content of document . 9
Table 2 – Available connector codings . 14
Table 3 – Styles of fixed connectors . 16
Table 4 – Styles of free connectors . 23
Table 5 – Dimensions of style JM-OP, Figure 13 . 23
Table 6 – Dimensions of style KM-OP, Figure 14 . 24
Table 7 – Dimensions of style LM-OP, Figure 15. 25
Table 8 – Dimensions of style MM-OP, Figure 16 . 25
Table 9 – Dimensions of style JF-OP, Figure 17 . 26
Table 10 – Dimensions of style KF-OP, Figure 18 . 27
Table 11 – Dimensions of style LF-OP, Figure 19 . 28
Table 12 – Dimensions of style MF-OP, Figure 20 . 29
Table 13 – Dimensions of style JM-IP, Figure 21 . 29
Table 14 – Dimensions of style KM-IP, Figure 22 . 30
Table 15 – Dimensions of style LM-IP, Figure 23 . 31
Table 16 – Dimensions of style MM-IP, Figure 24 . 31
Table 17 – Dimensions of fixed connector with push pull housing and male contacts . 33

Table 18 – Dimensions for Figure 26. 35
Table 19 – Dimensions of CA for Figure 26 . 36
Table 20 – Dimensions of CD for Figure 26 . 36
Table 21 – Dimensions of CC for Figure 26 . 36
Table 22 – Dimensions for Figure 27. 38
Table 23 – Dimensions of engage-plane for Figure 27 . 39
Table 24 – Climatic category . 39
Table 25 – Insertion and withdrawal forces for the locking mechanism . 41
Table 26 – Number of test specimens . 43
Table 27 – Test group BP . 43
Table A.1 – Diameter of the female connector body, dimension X . 45
Table A.2 – Dimension DAB . 46
Table A.3 – Dimension FP for Figure A.3 . 47
Table B.1 – Comparison of dimension between screw- and push-pull-locking . 49
Table C.1 – Female free connector styles to extend push-pull free male connectors . 50

– 6 – IEC 61076-2-010:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-010: Circular connectors – Detail specification for connectors
with outer or inner push-pull locking mechanism, based on mating
interfaces according to IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 and IEC 61076-2-113

FOREWORD
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International Standard IEC 61076-2-010 has been prepared by subcommittee 48B: Electrical
connectors, of IEC technical committee 48: Electrical connectors and mechanical structures for
electrical and electronic equipment.
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/2876/FDIS 48B/2887/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 61076 series, published under the general title Connectors for
electrical and electronic equipment – Product requirements, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 8 – IEC 61076-2-010:2021 © IEC 2021
INTRODUCTION
The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed
that compliance with this International Standard may involve the use of patent(s) concerning
the free connectors
The IEC takes no position concerning the evidence, validity and scope of these patent rights.
The holder of this patent right has assured the IEC that he/she is willing to give free licences
with applicants throughout the world. In this respect, the statement of the holder of this patent
right is registered with the IEC.
Information may be obtained from:
Molex LLC
2222 Wellington Court
Lisle, IL60532
USA
HARTING Electronics GmbH
Marienwerderstraße 3
32339 Espelkamp
Germany
Table 1 – Content of document
IEC SC 48B – Electrical connectors
Specification available from:
IEC 61076-2-010 Ed. 1
IEC General secretariat
Or from the addresses shown on the inside cover.
DETAIL SPECIFICATION in accordance with IEC 61076-1
Circular M12 connectors with push-
pull locking for power and/or signal
and/or data transmission
Fixed connectors with male and
female contacts, mateable with M12
screw or push-pull plugs
Free cable connectors with male or
female contacts with push-pull
locking
Rewireable – Non-rewirable
Fixed connectors, with front, rear or
single hole mounting
Straight and right-angled free cable
connectors
Table 1 shows the content of this document.

– 10 – IEC 61076-2-010:2021 © IEC 2021
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-010: Circular connectors – Detail specification for connectors
with outer or inner push-pull locking mechanism, based on mating
interfaces according to IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 and IEC 61076-2-113

1 Scope
This part of IEC 61076-2 specifies circular connectors with a push-pull locking mechanism of a
size derived from, and thus being compatible with M12 screw-locking connectors (free
connectors with screw-locking according to IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 or IEC 61076-2-113 are compatible with push-pull fixed interfaces according
to this document) and with mating interfaces according to IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 (except codings E in general and coding F for inner push-pull) or
IEC 61076-2-113.
A fixed connector with push-pull locking according to this document is intermateable with a
correspondingly coded free connector with M12 screw-locking according to any of the above
mentioned standards.
NOTE 1 M12 is the dimension of the thread of the screw-locking mechanism of circular connectors with M12 screw-
locking.
NOTE 2 IEC 61076-2-012 defines another inner push-pull for fixed female connectors which is however not
compatible to the inner push-pull defined in this document. Annex C shows the different styles of female free
connectors to extend male free connectors.
This document covers both:
a) power connectors with current ratings up to 16 A and voltage ratings up to 630 V, typically
used for power supply and power applications in industrial premises, and
b) connectors for data and signal transmission with frequencies up to 500 MHz.
These connectors consist of both, fixed and free connectors, either rewirable or non-rewirable,
with M12 push-pull locking as explained above. Male connectors have round contacts from Ø
0,6 mm up to Ø 1,5 mm. In addition, the push-pull mechanisms consist of 2 different push-pull
designs:
c) An outer push-pull for male and female fixed connector, where the locking groove is placed
onto the outer cylindric surface of the housing. The outer push-pull for female fixed
connectors is made for 2 different types of male connectors. It has locking means for both
types on its outer surface.
NOTE 3 For design and dimensions see 5.3.2 and 5.3.3.
d) An inner push-pull for female fixed connectors and for male free connectors, where the
locking means are placed onto the inner cylindric surface of the housing.
NOTE 4 For design and dimensions see 5.3.4.
The different codings provided by IEC 61076-2 series detail specifications mentioned within this
document prevent the mating of accordingly coded male or female connectors to any other
similarly sized interfaces, covered by other standards and the cross-mating between the
different codings provided by any other IEC 61076-2 series detail specification mentioned within
this document.
2 Normative references
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.
IEC 60050-581:2008, International Electrotechnical Vocabulary (IEV) – Part 581:
Electromechanical components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60512-1, Connectors for electrical and electronic equipment – Tests and measurements –
Part 1: Generic specification
IEC 60512-2-1, Connectors for electronic equipment – Tests and measurements – Part 2-1:
Electrical continuity and contact resistance tests – Test 2a: Contact resistance – Millivolt level
method
IEC 60512-3-1, Connectors for electronic equipment – Tests and measurements – Part 3-1:
Insulation tests – Test 3a: Insulation resistance
IEC 60512-4-1, Connectors for electronic equipment – Tests and measurements – Part 4-1:
Voltage stress tests – Test 4a: Voltage proof
IEC 60512-5-1, Connectors for electronic equipment – Tests and measurements – Part 5-1:
Current-carrying capacity tests – Test 5a: Temperature rise
IEC 60512-6-3, Connectors for electronic equipment – Tests and measurements – Part 6-3:
Dynamic stress tests – Test 6c: Shock
IEC 60512-6-4, Connectors for electronic equipment – Tests and measurements – Part 6-4:
Dynamic stress tests – Test 6d: Vibration (sinusoidal)
IEC 60512-9-1, Connectors for electronic equipment – Tests and measurements – Part 9-1:
Endurance tests – Test 9a: Mechanical operation
IEC 60512-13-1, Connectors for electronic equipment – Tests and measurements – Part 13-1:
Mechanical operation tests – Test 13a: Engaging and separating forces
IEC 60512-13-2, Connectors for electronic equipment – Tests and measurements – Part 13-2:
Mechanical operation tests – Test 13b: Insertion and withdrawal forces
IEC 60512-13-5, Connectors for electronic equipment – Tests and measurements – Part 13-5:
Mechanical operation tests – Test 13e: Polarizing and keying method
IEC 60512-15-6, Connectors for electronic equipment – Tests and measurements – Part 15-6:
Connector tests (mechanical) – Test 15f: Effectiveness of connector coupling devices
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests

– 12 – IEC 61076-2-010:2021 © IEC 2021
IEC 60998-2-1:2002, Connecting devices for low-voltage circuits for household and similar
purposes – Part 2-1: Particular requirements for connecting devices as separate entities with
screw-type clamping units
IEC 61076-1:2006, Connectors for electronic equipment – Product requirements – Part 1:
Generic specification
IEC 61076-1:2006/AMD1:2019
IEC 61076-2-012, Connectors for electrical and electronic equipment – Product requirements
Part 2-012: Circular connectors – Detail specification for connectors with inner push-pull
locking, based on M12 connector interfaces according to IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 and IEC 61076-2-113
IEC 61076-2-101:2012, Connectors for electronic equipment – Product requirements –
Part 2-101: Circular connectors – Detail specification for M12 connectors with screw-locking
IEC 61076-2-109:2014, Connectors for electronic equipment – Product requirements –
Part 2-109: Circular connectors – Detail specification for connectors with M 12 × 1 screw-
locking, for data transmission frequencies up to 500 MHz
IEC 61076-2-111:2017, Connectors for electrical and electronic equipment – Product
requirements – Part 2-111: Circular connectors – Detail specification for power connectors with
M12 screw-locking
IEC 61076-2-113:2017, Connectors for electronic equipment – Product requirements –
Part 2-113: Circular connectors – Detail specification for connectors with M12 screw locking
with power and signal contacts for data transmission with frequency up to 100 MHz
IEC 61984, Connectors – Safety requirements and tests
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581,
IEC 60512-1 and IEC 61076-1 apply, together with the following.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
mounting orientation
circular mounting position of the connector in relation to the polarization of the mating interface
Note 1 to entry: Where the free connector has an angled cable entry (as opposed to a straight cable entry), the
angle between the entry direction and the polarisation keyway should be specified.

4 Technical information
4.1 System of levels
4.1.1 Performance levels
Performance levels for these connectors (mating cycles for the mating interface only) are
specified in the applicable standard, either IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 or IEC 61076-2-113. The same performance level (number of cycles of
mechanical operations, i.e. one locking and one unlocking operation) shall apply to the specific
complete connector with the push-pull locking described herein.
A qualification of the push-pull locking mechanism for the highest performance level shall cover
the qualifications for all lower performance levels required by the various mating interfaces,
which are not subject to re-qualification for all those aspects already covered in the relevant
IEC standards mentioned above.
4.1.2 Compatibility levels, according to IEC 61076-1
The connectors according to this document are intermateable according to IEC 61076-1.
4.2 Classification into climatic categories
For the classifications of the connectors into climatic categories in accordance with the general
rules given in IEC 60068-1, see the applicable standard, either IEC 61076-2-101,
IEC 61076-2-109, IEC 61076-2-111 or IEC 61076-2-113.
The qualification of the push-pull locking interface for the most demanding climatic category
(lowest LCT, highest UCT, highest number of days of damp heat, steady state) will cover all
less demanding climatic categories established for the mating interfaces described in the
above-mentioned IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 or IEC 61076-2-113.
4.3 Contact terminations
The contact terminations shall be of the following types: screw, crimp, spring type, insulation
piercing, insulation displacement, press-in or solder according to the applicable standard for
the mating interface (either IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 or
IEC 61076-2-113).
4.4 Available connector codings
The available codings are shown in Table 2.

– 14 – IEC 61076-2-010:2021 © IEC 2021
Table 2 – Available connector codings
Coding Type Contacts Rated voltage Rated current Reference
AC or DC A
5-way 2 to 4 250 4
5 60
8-way 6 to 8 30 2
A
12-way 9 to 12 30 1,5
17-way 13 to 17 30 1,5
5-way 5 60 4
B
IEC 61076-2-101
3-way (2+PE) 3 (2+PE) 250 4
4-way (3+PE) 4 (3+PE) 250 4
C
5-way (4+PE) 5 (4+PE) 60 2
6-way (5+PE) 6 (5+PE) 30 2
4-way 4 250 4
D
5-way (4+PE) 5 (4+PE) 60 4
P
H 8-way 2 to 8 50 AC / 60 DC 0,5
IEC 61076-2-109
X 8-way 2 to 8 50 AC / 60 DC 0,5
4-way 2 63 16
F (for
outer
push-
pull)
K
5-way (4+PE) 3 (2+PE) 630 12
4 (3+PE)
5 (4+PE)
5-way (4+FE) 3 (2+FE) 63 16
4 (3+FE)
5 (4+FE)
L
4-way 2
IEC 61076-2-111
M 6-way (5+PE) 3 (2+PE) 630 8
4 (3+PE)
5 (4+PE)
6 (5+PE)
S 4-way (3+PE) 3 (2+PE) 630 12
4 (3+PE)
T 4-way 2 63 12
Type 1 6-way 4 (2 data 50 10 (power)
pairs) + 2
power
Type 2 8-way 4 (2 data 50 6 (power)
pairs) + 4
power
Type 3 6-way 4 (2 data 50 12 (power) IEC 61076-2-113
pairs) + 2
power
Type 4 8-way 4 (2 data 50 6 (power)
pairs) + 4
power
NOTE 1 E-coding as defined in IEC 61076-2-111 is not included in this document. F-coded as defined in
IEC 61076-2-111 is only included for outer push-pull.
NOTE 2 A voltage rating 630 V according to IEC 60664-1 actually covers a rated voltage up to and including 690 V.

4.5 Ratings
Rated voltages and currents are specified in IEC 61076-2-101, IEC 61076-2-109,
IEC 61076-2-111 or IEC 61076-2-113, respectively. Table 2 provides an overview of such
ratings.
4.6 Marking
The marking of the connector and the package shall be in accordance with 2.7 of
IEC 61076-1:2006.
4.7 Safety aspects
For safety aspects IEC 61984 shall be considered whenever the applicable standard for the
mating interface (either IEC 61076-2-101, IEC 61076-2-109, IEC 61076-2-111 or
IEC 61076-2-113) assigns a rated voltage within the scope of IEC 61984.
5 Dimensional information
5.1 General
Throughout this document the dimensions are in mm. The drawings are shown in the first angle
projection. The shape of the connectors may deviate from those given in the following drawings
if the specified dimensions are not influenced.
Missing dimensions shall be chosen according to common characteristics and intended use.
5.2 Survey of styles and variants
5.2.1 General
For all connector styles with cables, the length of the cable or wire shall be agreed between
manufacturer and user.
The interface dimensions of the free connectors shall be chosen according to the common
characteristics of the fixed connector styles, ex
...