IEC 61076-8-104:2023

IEC 61076-8-104
®

Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Product requirements –
Part Part 8-104: Power connectors – Detail specification for 2-pole circular
connectors with 40 A rated current and push-pull locking IP65/IP67 with metal
housing

Connecteurs pour équipements électriques et électroniques – Exigences de
produit –
Partie 8-104: Connecteurs d’alimentation – Spécification particulière relative aux
connecteurs circulaires bipolaires avec un courant assigné de 40 A et un
mécanisme de verrouillage de type pousser-tirer IP65/IP67, logés dans un boîtier
métallique

IEC 61076-8-104:2023-05(en-fr)

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IEC 61076-8-104

®


Edition 1.0 2023-05




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE











Connectors for electrical and electronic equipment – Product requirements –

Part Part 8-104: Power connectors – Detail specification for 2-pole circular

connectors with 40 A rated current and push-pull locking IP65/IP67 with metal

housing



Connecteurs pour équipements électriques et électroniques – Exigences de


produit –

Partie 8-104: Connecteurs d’alimentation – Spécification particulière relative aux

connecteurs circulaires bipolaires avec un courant assigné de 40 A et un


mécanisme de verrouillage de type pousser-tirer IP65/IP67, logés dans un boîtier

métallique








INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 31.220.10 ISBN 978-2-8322-6844-5




Warning! Make sure that you obtained this publication from an authorized distributor.

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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– 2 – IEC 61076-8-104:2023 © IEC 2023
CONTENTS
FOREWORD . 5
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 11
4 Technical information . 11
4.1 Recommended method of termination . 11
4.1.1 General . 11
4.1.2 Number of contacts and contact cavities . 11
4.2 Ratings and characteristics . 11
4.3 Systems of levels . 12
4.3.1 Performance levels . 12
4.3.2 Compatibility levels . 12
4.4 Classification into climatic categories . 12
4.5 Creepage and clearance distances . 12
4.6 Current-carrying capacity . 12
4.7 Marking . 12
5 Dimensional information . 12
5.1 General . 12
5.2 Isometric view and common features . 12
5.2.1 General . 12
5.2.2 Isometric view of free connector . 13
5.2.3 Isometric view of fixed connector . 13
5.3 Free connector . 13
5.3.1 General . 13
5.3.2 Dimensions . 14
5.3.3 Terminations . 15
5.4 Fixed connector . 15
5.4.1 Dimensions (see Figure 4 and Table 2) . 15
5.4.2 Terminations . 16
5.5 Mounting information for connectors . 16
5.6 Gauges – Sizing gauges and retention force gauges . 16
6 Technical characteristics . 16
6.1 Classification into climatic categories . 16
6.2 Electrical characteristics . 16
6.2.1 Creepage and clearance distances . 16
6.2.2 Voltage proof . 17
6.2.3 Current-carrying capacity . 17
6.2.4 Electrical load and temperature . 17
6.2.5 Contact resistance . 18
6.2.6 Housing electrical continuity . 18
6.2.7 Insulation resistance . 18
6.3 Mechanical characteristics . 18
6.3.1 Mechanical operation . 18
6.3.2 Effectiveness of connector coupling devices . 18
6.3.3 Gauge retention force (resilient contact) . 18
6.3.4 Engaging and separating forces . 19

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IEC 61076-8-104:2023 © IEC 2023 – 3 –
6.3.5 Contact retention in insert . 19
6.3.6 Polarizing and keying method . 19
6.4 Dynamic stress tests . 19
6.4.1 Vibration (sine) . 19
6.4.2 Shock . 19
6.4.3 Free fall (repeated) . 20
6.4.4 IP degree of protection . 20
6.4.5 Glow-wire flammability test method for end-products (GWEPT) . 20
6.5 Climatic tests . 20
6.5.1 Rapid change of temperature . 20
6.5.2 Dry heat . 20
6.5.3 Low temperature . 20
6.5.4 Low air pressure . 21
6.5.5 Damp heat, cyclic . 21
6.5.6 Damp heat, steady state . 21
6.5.7 Corrosion, salt mist . 21
6.5.8 Flowing mixed gas corrosion . 21
6.6 Environmental aspects . 21
6.6.1 Marking of insulation material (plastic) . 21
6.6.2 Design/use of material . 21
7 Test schedule . 22
7.1 General . 22
7.2 Test schedules . 22
7.2.1 Basic (minimum) test schedule . 22
7.2.2 Full test schedule . 22
7.3 Test procedures and measurement methods . 33
7.4 Pre-conditioning . 33
7.5 Wiring and mounting of test specimens . 33
7.5.1 Wiring . 33
7.5.2 Mounting . 33


Figure 1 – Free connector . 13
Figure 2 – Fixed connector . 13
Figure 3 – Free connector . 14
Figure 4 – Fixed connector . 15
Figure 5 – Gauge for contact . 16
2
Figure 6 – Current-temperature derating (6 mm wire size) . 17

Table 1 – Free connector dimensions . 14
Table 2 – Fixed connector dimensions . 15
Table 3 – Gauge dimensions. 16
Table 4 – Climatic category. 16
Table 5 – Voltage proof . 17
Table 6 – Number of test specimens . 22
Table 7 – Test group P . 23
Table 8 – Test group AP . 24

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– 4 – IEC 61076-8-104:2023 © IEC 2023
Table 9 – Test group BP . 27
Table 10 – Test group CP . 29
Table 11 – Test group DP . 30
Table 12 – Test group EP . 32
Table 13 – Test group GP . 32

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IEC 61076-8-104:2023 © IEC 2023 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 8-104: Power connectors –
Detail specification for 2-pole circular connectors with 40 A
rated current and push-pull locking IP65/IP67 with metal housing

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, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by 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 has representation from all
interested IEC National Committees.
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services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
IEC 61076-8-104 has been prepared by subcommittee 48B: Electrical connectors, of IEC
technical committee 48: Electrical connectors and mechanical structures for electrical and
electronic equipment. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
48B/2953/CDV 48B/2991/RVC

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.

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– 6 – IEC 61076-8-104:2023 © IEC 2023
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/publications.
A list of all parts of IEC 61076 series, under the general title Connectors for electrical and
electronic equipment – Product requirements, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
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.

IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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IEC 61076-8-104:2023 © IEC 2023 – 7 –
The International Electrotechnical Commission
IEC 61076-8-104
IEC SC 48B – Electrical connectors
Detail specification in accordance with IEC 61076-8
For rated current of 40 A;
2-pole;
Free
Female contacts;
connector
Push-pull locking;
360° shielding.

For rated current of 40 A;
2-pole;
Fixed
Male contacts;
connector
Push-pull locking;
360° shielding.

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– 8 – IEC 61076-8-104:2023 © IEC 2023
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 8-104: Power connectors –
Detail specification for 2-pole circular connectors with 40 A
rated current and push-pull locking IP65/IP67 with metal housing



1 Scope
This part of IEC 61076-8 describes free and fixed 2-pole circular power connectors with 40 A
rated current, rated voltage up to and including 50 V AC/DC, and push-pull locking IP65/IP67
metal housings (hereinafter referred to as connectors) for use in electrical and electronic
equipment. It includes overall dimensions, interface dimensions, technical characteristics,
performance requirements and test methods.
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, International Electrotechnical Vocabulary (IEV) – Part 581: Electromechanical
components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC60068-2-60, Environmental testing – Part 2-60: Tests – Test Ke: Flowing mixed gas
corrosion test
IEC 60228, Conductors of insulated cables
IEC 60352-2, Solderless connections – Part 2: Crimped connections – General requirements,
test methods and practical guidance
IEC 60352-3, Solderless connections – Part 3: Accessible insulation displacement (ID)
connections – General requirements, test methods and practical guidance
IEC 60352-4, Solderless connections – Part 4: Non-accessible insulation displacement (ID)
connections – General requirements, test methods and practical guidance
IEC 60352-5, Solderless connections – Part 5: Press-in connections – General requirements,
test methods and practical guidance
IEC 60352-6, Solderless connections – Part 6: Insulation piercing connections – General
requirements, test methods and practical guidance
IEC 60352-7, Solderless connections – Part 7: Spring clamp connections – General
requirements, test methods and practical guidance
IEC 60512-1-1, Connectors for electronic equipment – Tests and measurements – Part 1-1:
General examination-Test 1a: Visual examination

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IEC 61076-8-104:2023 © IEC 2023 – 9 –
IEC 60512-1-2, Connectors for electronic equipment – Tests and measurements – Part 1-2:
General examination-Test 1b: Examination of dimension and mass
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 60512-2-2, Connectors for electronic equipment – Tests and measurements – Part 2-2:
Electrical continuity and contact resistance tests – Test 2b: Contact resistance – Specified test
current method
IEC 60512-2-5, Connectors for electronic equipment – Tests and measurements – Part 2-5:
Electrical continuity and contact resistance tests – Test 2e: Contact disturbance
IEC 60512-2-6, Connectors for electronic equipment – Tests and measurements – Part 2-6:
Electrical continuity and contact resistance tests – Test 2f: Housing (shell) electrical continuity
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 60512-5-2, Connectors for electronic equipment – Tests and measurements – Part 5-2:
Current-carrying capacity tests – Test 5b: Current-temperature derating
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 60512-7-1, Connectors for electronic equipment – Tests and measurements – Part 7-1:
Impact tests (free connectors) – Test 7a: Free fall (repeated)
IEC 60512-9-1, Connectors for electronic equipment – Tests and measurements – Part 9-1:
Endurance tests – Test 9a: Mechanical operation
IEC 60512-9-2, Connectors for electronic equipment – Tests and measurements – Part 9-2:
Endurance tests – Test 9b: Electrical load and temperature
IEC 60512-11-1, Connectors for electrical and electronic equipment – Tests and measurements
– Part 11-1: Climatic tests – Test 11a: Climatic sequence
IEC 60512-11-3, Connectors for electronic equipment – Tests and measurements – Part 11-3:
Climatic tests – Test 11c: Damp heat, steady state
IEC 60512-11-4, Connectors for electronic equipment – Tests and measurements – Part 11-4:
Climatic tests – Test 11d: Rapid change of temperature
IEC 60512-11-6, Connectors for electronic equipment – Tests and measurements – Part 11-6:
Climatic tests – Test 11f: Corrosion, salt mist
IEC 60512-11-7, Connectors for electronic equipment – Tests and measurements – Part 11-7:
Climatic tests – Test 11g: Flowing mixed gas corrosion test

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