IEC 61076-8-106:2023

IEC 61076-8-106
®

Edition 1.0 2023-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


Connectors for electrical and electronic equipment – Product requirements –
Part 8-106: Power connectors – Detail specification for 2-poles push-pull
coupling rectangular connectors with fuses, for 400 V DC rated voltage and 16 A
rated current

Connecteurs pour équipements électriques et électroniques – Exigences de
produit –
Partie 8-106: Connecteurs d’alimentation – Spécification particulière pour les
connecteurs bipolaires rectangulaires à accouplement pousser-tirer équipés de
coupe-circuits, pour une tension assignée de 400 V en courant continu et un
courant assigné de 16 A
IEC 61076-8-106:2023-07(en-fr)

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IEC 61076-8-106

®


Edition 1.0 2023-07




INTERNATIONAL



STANDARD




NORME


INTERNATIONALE
colour

inside










Connectors for electrical and electronic equipment – Product requirements –

Part 8-106: Power connectors – Detail specification for 2-poles push-pull

coupling rectangular connectors with fuses, for 400 V DC rated voltage and 16 A

rated current



Connecteurs pour équipements électriques et électroniques – Exigences de


produit –

Partie 8-106: Connecteurs d’alimentation – Spécification particulière pour les

connecteurs bipolaires rectangulaires à accouplement pousser-tirer équipés de


coupe-circuits, pour une tension assignée de 400 V en courant continu et un

courant assigné de 16 A







INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE





ICS 31.220.10  ISBN 978-2-8322-7125-4




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 61076-8-106:2023 © IEC 2023
CONTENTS
FOREWORD . 5
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 11
4 Technical information . 11
4.1 Number of contacts and contact cavities . 11
4.2 Ratings and characteristics . 11
4.2.1 Ratings and characteristics of connectors . 11
4.2.2 Rating and characteristics of fuses . 11
4.3 Recommended method of termination . 11
4.4 Safety aspects . 11
4.5 Systems of levels . 12
4.5.1 Performance levels . 12
4.5.2 Compatibility levels . 12
4.6 Classification into climatic categories . 12
4.7 Clearance and creepage distances . 12
4.8 Current-carrying capacity . 12
4.9 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 Engagement (mating) information . 13
5.4 Fixed connectors . 13
5.4.1 General . 13
5.4.2 Dimensions . 14
5.4.3 Terminations . 15
5.5 Free connectors . 15
5.5.1 General . 15
5.5.2 Dimensions . 16
5.5.3 Terminations . 17
5.6 Accessories . 17
5.7 Mounting information . 17
5.7.1 General . 17
5.7.2 Gauges – Sizing gauges and retention force gauges . 18
6 Technical characteristics . 18
6.1 Classification into climatic categories (Table 6) . 18
6.2 Electrical characteristics . 18
6.2.1 Clearance and creepage distance . 18
6.2.2 Voltage proof . 18
6.2.3 Contact resistance . 19
6.2.4 Insulation resistance . 19
6.3 Temperature rise . 19
6.3.1 General . 19

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IEC 61076-8-106:2023 © IEC 2023 – 3 –
6.3.2 Current temperature derating . 19
6.3.3 Electrical load and temperature . 20
6.3.4 Fuse tripping . 20
6.4 Mechanical characteristics . 20
6.4.1 Mechanical operation . 20
6.4.2 Effectiveness of connector coupling devices . 21
6.4.3 Insertion and withdrawal force . 21
6.4.4 Contact retention in insert . 21
6.4.5 Polarizing and keying method . 21
6.4.6 retention force (resilient contact) . 21
6.4.7 Conductor secureness . 22
6.4.8 Capacity . 22
6.5 Dynamic stress test. 22
6.5.1 Vibration (sine) . 22
6.5.2 Shock . 23
6.5.3 IP degree of protection . 23
6.6 Climatic test . 23
6.6.1 Damp heat, steady state . 23
6.6.2 Rapid change of temperature . 23
6.6.3 Corrosion, salt mist . 23
6.6.4 Dry heat . 23
6.6.5 Cold. 24
6.7 Environmental aspects . 24
6.7.1 Marking of insulation material (plastic) . 24
6.7.2 Design/use of material . 24
7 Test schedule . 24
7.1 General . 24
7.2 Test schedules . 25
7.2.1 Basic (minimum) test schedule . 25
7.2.2 Full test schedule . 25
7.3 Test procedures and measurement methods . 32
7.4 Pre-conditioning . 32
7.5 Wiring and mounting of test specimens . 32
7.5.1 Wiring . 32
7.5.2 Mounting . 32

Figure 1 – Isometric view – Free connector . 13
Figure 2 – Isometric view – Fixed connector . 13
Figure 3 – Fixed connector . 14
Figure 4 – Fixed connector coding . 15
Figure 5 – Free connector . 16
Figure 6 – Free connector coding dimensions . 17
Figure 7 – Gauge for contacts . 18
2
Figure 8 – Current-temperature derating (4 mm wire size) . 20

Table 1 – Fixed connector dimensions . 14
Table 2 – Fixed connector coding dimensions . 15

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– 4 – IEC 61076-8-106:2023 © IEC 2023
Table 3 – Free connector dimensions . 16
Table 4 – Free connector coding dimensions . 17
Table 5 – Gauge dimensions. 18
Table 6 – Climatic categories . 18
Table 7 – Conductor secureness test . 22
Table 8 – Vibration . 22
Table 9 – Number of test specimens . 24
Table 10 – Test group P . 25
Table 11 – Test group AP . 26
Table 12 – Test group BP . 27
Table 13 – Test group CP . 28
Table 14 – Test group DP . 29
Table 15 – Test group EP . 30
Table 16 – Test group JP . 31
Table 17 – Test group KP . 31

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IEC 61076-8-106:2023 © IEC 2023 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 8-106: Power connectors – Detail specification for 2-poles push-pull
coupling rectangular connectors with fuses, for 400 V DC rated voltage
and 16 A rated current

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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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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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 61076-8-106 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/2956/CDV 48B/2993/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 61076-8-106:2023 © 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 61076-8-106:2023 © IEC 2023 – 7 –
The International Electrotechnical Commission
IEC 61076-8-106 Ed.1
IEC SC 48B – Electrical connectors
Detail specification in accordance with IEC 61076-1
Free rectangular connector;
For rated voltage of 400 V DC and rated
current of 16 A;
Free
2-pole;
connector
Receptacle contacts for power;
Push-pull and snap locking l;
Two codings.

2-pole 16 A free connector
Fixed rectangular connector;
For rated voltage of 400 V DC and rated
current of 16 A
2-pole;
Fixed
connector With two fuses;
Blade contacts for power;
Push-pull and snap locking;
Two codings.

2-pole 16 A fixed connector

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– 8 – IEC 61076-8-106:2023 © IEC 2023
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –

Part 8-106: Power connectors – Detail specification for 2-poles push-pull
coupling rectangular connectors with fuses, for 400 V DC rated voltage
and 16 A rated current



1 Scope
This part of IEC 61076-8 applies to free and fixed, 2-pole push-pull and snap locking power
rectangular connectors with fuses, with rated voltage of 400 V DC and rated current of 16 A. It
includes overall dimensions, interface dimensions, technical characteristics, performance
requirements, and test methods.
Connectors according to this document are connectors with breaking capacity (CBC) according
to IEC 61984 which are mainly used in DC power conduction, in the field of electrical and
electronic equipment.
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 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 60127-1:2006, Miniature fuses – Part 1: Definitions for miniature fuses andgeneral
requirements for miniature fuse-links
IEC 60228:2004, 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

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IEC 61076-8-106:2023 © IEC 2023 – 9 –
IEC 60512-1-1, Connectors for electronic equipment – Tests and measurements – Part 1-1:
General examination – Test 1a: Visual examination
IEC 60512-1-2, Connectors for electronic equipment – Test 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 60512-2-5, Connectors for electronic equipment – Tests and measurements – Part 2-5:
Electrical continuity and contact resistance tests – Test 2e: Contact disturbance
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 60512-5-2, Connectors for electronic equipment – Tests an
...