IEC 61076-8-105:2023

Connectors for electrical and electronic equipment - Product requirements - Part 8-105: Power connectors – Detail specification for 2-pole snap locking rectangular power connectors with plastic housing for 63 A rated current and 400 V rated voltage

IEC 61076-8-105:2023 applies to free and fixed 2-pole snap locking rectangular power connectors with plastic housing with rated current 63 A and rated voltage up to 400 V. It includes overall dimensions, interface dimensions, technical characteristics, performance requirements, test methods.

Connecteurs pour équipements électriques et électroniques - Exigences de produit - Partie 8-105: Connecteurs d’alimentation - Spécification particulière pour les connecteurs d’alimentation rectangulaires bipolaires, à verrouillage par enclenchement, logés dans un boîtier en plastique pour un courant assigné de 63 A et une tension assignée de 400 V

IEC 61076-8-105:2023 s'applique aux connecteurs d'alimentation rectangulaires à verrouillage à pression à 2 pôles libres et fixes avec boîtier en plastique avec un courant nominal de 63 A et une tension nominale allant jusqu'à 400 V. Il comprend les dimensions globales, les dimensions de l'interface, les caractéristiques techniques, les exigences de performance, les méthodes d'essai.

General Information

• Status: Published
• Publication Date: 15-Aug-2023
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 16-Aug-2023
• Completion Date: 11-Aug-2023

Standards Content (Sample)

IEC 61076-8-105 ®
Edition 1.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electrical and electronic equipment – Product requirements –
Part 8-105: Power connectors – Detail specification for 2-pole snap locking
rectangular power connectors with plastic housing for 63 A rated current and
400 V rated voltage
Connecteurs pour équipements électriques et électroniques – Exigences de
produit –
Partie 8-105: Connecteurs d’alimentation – Spécification particulière pour les
connecteurs d’alimentation rectangulaires bipolaires, à verrouillage par
enclenchement, logés dans un boîtier en plastique pour un courant assigné de
63 A et une tension assignée de 400 V
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.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat 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.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC -  IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur les adapté à vos besoins.
projets et les publications remplacées ou retirées.

Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au monde,
Restez informé sur les nouvelles publications IEC. Just
avec plus de 22 300 articles terminologiques en anglais et en
Published détaille les nouvelles publications parues.
français, ainsi que les termes équivalents dans 19 langues
Disponible en ligne et une fois par mois par email.
additionnelles. Egalement appelé Vocabulaire

Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 61076-8-105 ®
Edition 1.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Connectors for electrical and electronic equipment – Product requirements –

Part 8-105: Power connectors – Detail specification for 2-pole snap locking

rectangular power connectors with plastic housing for 63 A rated current and

400 V rated voltage
Connecteurs pour équipements électriques et électroniques – Exigences de

produit –
Partie 8-105: Connecteurs d’alimentation – Spécification particulière pour les

connecteurs d’alimentation rectangulaires bipolaires, à verrouillage par

enclenchement, logés dans un boîtier en plastique pour un courant assigné de

63 A et une tension assignée de 400 V

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.10  ISBN 978-2-8322-7209-1

– 2 – IEC 61076-8-105:2023 © IEC 2023
CONTENTS
FOREWORD . 5
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 10
4 Technical information . 10
4.1 Recommended method of termination . 10
4.1.1 General . 10
4.1.2 Number of contacts and contact cavities . 11
4.1.3 Ratings and characteristics . 11
4.2 Systems of levels . 11
4.2.1 Compatibility levels . 11
4.3 Classification into climatic categories . 11
4.4 Clearance and creepage distance . 11
4.5 Current-carrying capacity . 11
4.6 Marking . 11
4.7 Safety aspects . 11
5 Dimensional information . 11
5.1 General . 11
5.2 Isometric view and common features . 12
5.2.1 General . 12
5.2.2 Isometric view of free connector . 12
5.2.3 Isometric view of fixed connector . 12
5.3 Engagement (mating) information . 12
5.4 Fixed connectors . 12
5.4.1 General . 12
5.4.2 Dimensions . 13
5.4.3 Terminations . 14
5.5 Free connectors . 14
5.5.1 General . 14
5.5.2 Dimensions . 14
5.5.3 Terminations . 15
5.6 Accessories . 15
5.7 Mounting information . 15
5.8 Gauges . 15
5.8.1 General . 15
5.8.2 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 Clearance and creepage distance . 16
6.2.2 Voltage proof . 17
6.2.3 Contact resistance . 17
6.2.4 Insulation resistance . 17
6.2.5 Temperature rise . 17
6.2.6 Current temperature derating . 17
6.2.7 Electrical load and temperature . 18

6.3 Mechanical characteristics . 18
6.3.1 Mechanical operation . 18
6.3.2 Effectiveness of connector coupling devices . 18
6.3.3 Engaging and separating force . 19
6.3.4 Contact retention in insert . 19
6.3.5 Polarizing and keying method . 19
6.3.6 Gauge retention force (resilient contact) . 19
6.3.7 Conductor secureness . 19
6.4 Dynamic stress test. 20
6.4.1 Vibration (sine) . 20
6.4.2 Shock . 20
6.5 Climatic test . 20
6.5.1 Damp heat, steady state . 20
6.5.2 Rapid change of temperature . 21
6.5.3 Corrosion, salt mist . 21
6.5.4 Dry heat . 21
6.5.5 Cold. 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 . 21
7.1 General . 21
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 . 28
7.4 Pre-conditioning . 29
7.5 Wiring and mounting of test specimens . 29
7.5.1 Wiring . 29
7.5.2 Mounting . 29

Figure 1 – Isometric view – Free connector . 12
Figure 2 – Isometric view – Fixed connector . 12
Figure 3 – Fixed connector . 13
Figure 4 – Fixed connector coding . 13
Figure 5 – Free connector . 14
Figure 6 – Free connector coding. 15
Figure 7 – Gauge for contacts . 16
Figure 8 – Current-temperature derating (16 mm wire size) . 18

Table 1 – Fixed connector dimensions . 13
Table 2 – Fixed connector coding dimensions . 14
Table 3 – Free connector dimensions . 15
Table 4 – Free connector coding dimensions . 15
Table 5 – Gauge dimensions. 16
Table 6 – Climatic categories . 16

– 4 – IEC 61076-8-105:2023 © IEC 2023
Table 7 – Conductor secureness test . 20
Table 8 – Vibration . 20
Table 9 – Number of test specimens . 22
Table 10 – Test group P . 22
Table 11 – Test group AP . 23
Table 12 – Test group BP . 24
Table 13 – Test group CP . 25
Table 14 – Test group DP . 26
Table 15 – Test group EP . 27
Table 16 – Test group JP . 28
Table 17 – Test group KP . 28

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 8-105: Power connectors – Detail specification for 2-pole
snap locking rectangular power connectors with plastic housing
for 63 A rated current and 400 V rated voltage

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.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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 61076-8-105 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/3042/FDIS 48B/3054/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.

– 6 – IEC 61076-8-105:2023 © 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.

The International Electrotechnical Commission
IEC 61076-8-105 Ed.1
IEC SC 48B—Electrical connectors
Detail specification in accordance with IEC 61076-8-10X
Free rectangular connector;
For rated current of 63 A;
Free
2-pole;
connector
Receptacle contact for power;
Straight insertion and withdrawal.

2-pole 63 A free connector
Fixed rectangular connector;
For rated current of 63 A;
Fixed
2-pole;
connector
Blade contact for power;
Straight insertion and withdrawal.

2-pole 63 A fixed connector
– 8 – IEC 61076-8-105:2023 © IEC 2023
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 8-105: Power connectors – Detail specification for 2-pole
snap locking rectangular power connectors with plastic housing
for 63 A rated current and 400 V rated voltage

1 Scope
This part of IEC 61076-8 applies to free and fixed 2-pole snap locking rectangular power
connectors with plastic housing with rated current 63 A and rated voltage up to 400 V. It includes
overall dimensions, interface dimensions, technical characteristics, performance requirements,
test methods.
The products covered by this detail specification are connectors without breaking capacity
(COC) according to IEC 61984 and are mainly deemed to be used in AC power feeding of class
II equipment (hence no PE contact provided), 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 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
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 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 60512-9-1, 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 60512-11-9, Connectors for electronic equipment – Tests and measurements – Part 11-9:
Climatic tests – Test 11i: Dry heat
IEC 60512-11-10, Connectors for electronic equipment – Tests and measurements – Part 11-10:
Climatic tests – Test 11j: Cold
IEC 60512-11-12, Connectors for electronic equipment – Tests and measurements –Part 11-12:
Climatic tests – Test 11m: Damp heat, cyclic

– 10 – IEC 61076-8-105:2023 © IEC 2023
IEC 60512-13-1, Connectors for electronic equipment – Tests and measurements – Part 13-1:
Mechanical operation tests – Test 13a: Engaging and separating forces
IEC 60512-13-5, Connectors for electronic equipment – Tests and measurements – Part 13-5:
Mechanical operation tests – Test 13e: Polarizing and keying method
IEC 60512-15-1, Connectors for electronic equipment – Tests and measurements – Part 15-1:
Connector tests (mechanical) – Test 15a: Contact retention in insert
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 60512-16-5, Connectors for electronic equipment – Tests and measurements – Part 16-5:
Mechanical tests on contacts and terminations – Test 16e: Gauge retention force (resilient
contacts)
IEC 60999-1:1999, Connecting devices – Electrical copper conductors – Safety requirements
for screw – type and screwless – type clamping units – Part 1: General requirements and
2 2
particular requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
IEC 61076-1:2006, Connectors for electronic equipment – Product requirements – Part 1:
Generic specification
IEC 61076-1:2006/AMD1:2019
IEC 61984:2008, Connectors – Safety requirements and tests
IEC 62430:2019, Environmentally conscious design (ECD) – Principles, requirements and
guidance
IEC Guide 109:2012, Environmental aspects – Inclusion in electrotechnical product standards
ISO 6508-1:2015, Metallic materials – Rockwell hardness test – Part 1: Test method
ISO 11469:2000, Plastics-Generic identification and marking of plastics products
ISO 21920-1:2021, Geometrical product specifications (GPS) – Surface texture: Profile – Part 1:
Indication of surface texture
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581 apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Technical information
4.1 Recommended method of termination
4.1.1 General
The contact terminations shall be as per 5.4.2.

4.1.2 Number of contacts and contact cavities
Number of contacts: 2 poles.
Conductor cross-sectional area: 16 mm .
4.1.3 Ratings and characteristics
Rated voltage: 400 V.
Rated impulse voltage: 4 kV.
Voltage proof: 2,21 kV.
NOTE See IEC 61984:2008, Table 8.
Pollution degree: 3.
Rated current: 63 A at 75 °C ambient temperature.
Insulation resistance: 5 000 MΩ min.
4.2 Systems of levels
4.2.1 Compatibility levels
The connector according to this document is intermateable according to IEC 61076-1.
4.3 Classification into climatic categories
The climatic category is specified in 6.1.
4.4 Clearance and creepage distance
Clearance and creepage distances shall be as per 6.2.1 (connector without breaking capacity
as defined in IEC 61984).
4.5 Current-carrying capacity
The current-carrying capacity as specified in 6.2.5 and 6.2.6.
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.
5 Dimensional information
5.1 General
Dimensions are given in millimetres. Drawings are shown in the third angle projection. The
shape of the connectors may deviate from those given in the following drawings as long as the
specified dimensions are not influenced.

– 12 – IEC 61076-8-105:2023 © IEC 2023
Missing dimensions shall be chosen according to the common characteristics and intended use.
5.2 Isometric view and common features
5.2.1 General
Figure 1 and Figure 2 show isometric views of the free and fixed connectors, respectively.
5.2.2 Isometric view of free connector

Figure 1 – Isometric view – Free connector
5.2.3 Isometric view of fixed connector

Figure 2 – Isometric view – Fixed connector
5.3 Engagement (mating) information
Not applicable.
5.4 Fixed connectors
5.4.1 General
Figure 3 and Figure 4 and Table 1 and Table 2 show the fixed connector drawings and
dimensions.
5.4.2 Dimensions
Figure 3 – Fixed connector
Table 1 – Fixed connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
A 27,55 27,6 27,75
B 4,8 4,9 5
C 1,2 1,3 1,4
D 1,47 1,5 1,53
E 7,8 8 8,2
F 9,4 9,5 9,6
G 7,96 8 8,04
H 2,2 2,3 2,4
J 12,12 12,2 12,28
K 25,9 26 26,2
Figure 4 – Fixed connector coding

– 14 – IEC 61076-8-105:2023 © IEC 2023
Table 2 – Fixed connector coding dimensions
dimensions in mm
Letter Minimum Nominal Maximum
L 11 11 11,2
M 24,06 24,12 24,2
N 0,95 1,1 1,05
P 7,8 8 8,1
5.4.3 Terminations
Terminations shall be according to IEC 60999-1(screw-type or screwless-type) or according to
IEC 60352 series (solderless).
5.5 Free connectors
5.5.1 General
Figure 5 and Figure 6 and Table 3 and Table 4 show the drawings and dimensions for the free
connector.
5.5.2 Dimensions
Figure 5 – Free connector
Table 3 – Free connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
A 25,8 26,1 26,3
B 5,2 5,4 5,6
C 5,95 6 6,05
D 1,65 1,7 1,75
E 5,4 5,5 5,6
F 9,2 9,3 9,4
G 8,3 8,4 8,5
H 2,7 2,8 2,9
J 12,14 12,2 12,26
K 2,35 2,6 2,85
Figure 6 – Free connector coding
Table 4 – Free connector coding dimensions
Letter Minimum Nominal Maximum
L 10,9 10,95 11,05
M 23,9 23,95 24,06
N 1,2 1,25 1,3
P 8,9 9 9,1
5.5.3 Terminations
Terminations shall be according to IEC 60999-1 (screw-type or screwless-type) or according to
IEC 60352 series (solderless).
5.6 Accessories
Not applicable.
5.7 Mounting information
Mounting information could be specified upon agreement between manufacturer and customer.
5.8 Gauges
5.8.1 General
Figure 7 and Table 5 show the gauge drawings and dimensions.

– 16 – IEC 61076-8-105:2023 © IEC 2023
5.8.2 Sizing gauges and retention force gauges
Material: tool steel, with hardness of HRC: 60 to 64 according to ISO 6508-1:2015 and surface
roughness of 0,8 μm according to ISO 21920-1:2021.
Dimensions in millimetres
Figure 7 – Gauge for contacts
Table 5 – Gauge dimensions
Gauge Mass Application h
g mm
+0,005
P1 - Sizing 1,52
P2 250 Retention force 1,48
–0,005
6 Technical characteristics
6.1 Classification into climatic categories
Conditions: according to IEC 60068-1 and Table 6.
Table 6 – Climatic categories
Climatic categories Lower temperature Upper temperature Damp heat, steady state
°C °C days
40/110/10 -40 +110 10
6.2 Electrical characteristics
6.2.1 Clearance and creepage distance
Clearance and creepage distances shall be measured according to IEC 60512-1-2 with the
following additional requirements.
For these connectors clearance and creepage distances shall be measured only in mated
condition (connector without breaking capacity as defined in IEC 61984).
Contacts: clearance 11 mm min., creepage distance 11 mm min.

6.2.2 Voltage proof
Conditions: IEC 60512-4-1, Test 4a, method A.
Standard atmospheric conditions, half of the connectors are mated and half unmated. Test
voltage shall be 2 210 V AC.
Requirements: There shall be no breakdown or flashover.
6.2.3 Contact resistance
Conditions: IEC 60512-2-1, Test 2a.
Standard atmospheric conditions.
Requirement:
Initial contact resistance: 0,5 mΩ max.
Final contact resistance: 0,8 mΩ max.
6.2.4 Insulation resistance
Conditions: IEC 60512-3-1, Test 3a, method A.
Standard atmospheric conditions, half of the connectors are mated and half unmated.
Test voltage: 500 V DC ± 50 V DC.
Requirement:
Initial insulation resistance: Contact/contact: 5 000 MΩ min.
Final insulation resistance: Contact/contact: 200 MΩ min.
6.2.5 Temperature rise
Conditions: IEC 60512-5-1, Test 5a.
Standard atmospheric conditions, mated connectors, contacts are wired with stranded copper
wires (class 5 according to IEC 60228), conductor cross-sectional area 16mm in accordance
with 4.1.2.
Test current: 63 A Requirements: value of temperature rise: 30 K max., the appearance of the
connectors shall meet the requirements of test phase P1.
6.2.6 Current temperature derating
The current-carrying capacity shall be verified according to IEC 60512-5-2, Test 5b, with the
accepted cross-sectional area (16 mm ), to be in compliance with the rated current (63 A at
75 °C) and the upper limiting temperature (110 °C) See in Figure 8 the current-temperature
derating.
– 18 – IEC 61076-8-105:2023 © IEC 2023

NOTE The diagram is expression of the formula
0,5
I = 111,685 × (1 – T/110)
(T)
Figure 8 – Current-temperature derating (16 mm wire size)
6.2.7 Electrical load and temperature
Conditions: IEC 60512-9-2, Test 9b.
Standard atmospheric conditions, mated connectors, contacts are wired with stranded copper
wires (class 5 according to IEC 60228), conductor cross-sectional area in accordance with 4.1.2.
Test current: 63 A, temperature: 75 °C ± 2 °C, duration: 500 h.
Requirements: The appearance, contact resistance (6.2.3), insulation resistance (6.2.4),
voltage proof (6.2.2), engaging and separating force (6.3.3) shall meet the requirements of this
specification after test.
6.3 Mechanical characteristics
6.3.1 Mechanical operation
Conditions: IEC 60512-9-1, Test 9a.
Standard atmospheric conditions, mated connectors.
Rate of insertion and withdrawal: 10 mm/s max.
Operating cycles: 500 cycles.
Requirements: The appearance, contact resistance (6.2.3), insulation resistance (6.2.4),
voltage proof (6.2.2) and polarization and coding method (6.3.5) shall meet the requirements of
this specification after test.
6.3.2 Effectiveness of connector coupling devices
Conditions: IEC 60512-15-6, Test 15f.
Standard atmospheric conditions, mated connectors, contacts are wired with stranded copper
wires (class 5 according to IEC 60228), wire cross-sectional area in accordance with 4.1.2.

The force applied through the main body of the connector housing. Axial Force: 150 N, rate of
application: 25 mm/min max.
Requirements: 1 μs max. of duration of disturbance during the test. The connectors shall remain
fully engaged; after test, the appearance shall meet the requirements of test phase P1, the
locking mechanism of the connector shall not be unlocked or broken.
6.3.3 Engaging and separating force
Condition: IEC 60512-13-1, Test 13a.
Standard atmospheric conditions.
Rate of engagement and separation: 10 mm/s max.
Requirements: engaging force: 55 N max., separating force: 5 N min.
6.3.4 Contact retention in insert
Conditions: IEC 60512-15-1, Test 15a.
Standard atmospheric conditions, unmated connectors.
Axial force: 100 N.
Requirements: contact displacement shall be less than 0,5 mm when applying axial forces and
be less than 0,3 mm after forces are removed. Contacts and insulation housings should not
have any mechanical damages.
6.3.5 Polarizing and keying method
Conditions: IEC 60512-13-5, Test 13e.
Standard atmospheric conditions, tool and gauges are not required, unintentional engaging
forces: 85 N.
Requirements: the appearance of connectors shall meet the requirements of this specification
after test.
6.3.6 Gauge retention force (resilient contact)
Condition: IEC 60512-16-5, Test 16e, method A.
Standard atmospheric conditions.
Requirements: The gauges shall be retained.
6.3.7 Conductor secureness
Conditions: IEC 60999-1, Test 9.4 and Test 9.5.
Standard atmospheric conditions, class 5 stranded copper wires per IEC 60228.
See Table 7 for the section area, mass, pulling force and height (H).

– 20 – IEC 61076-8-105:2023 © IEC 2023
Table 7 – Conductor secureness test
Height
Conductor cross-
Pulling force Mass
sectional area
(H ± 15)
N mm kg
mm
16 80 min. 300 2,9
After test, apply the pulling force in Table 7 to the wire for 1 min without sudden application.
The wire should be neither pulled out of terminals nor broken near the clamping area after test.
6.4 Dynamic stress test
6.4.1 Vibration (sine)
Conditions: IEC 60512-6-4, Test 6d.
Standard atmospheric conditions, mated connectors, according to Table 8.
Table 8 – Vibration
NO. Frequency range Amplitude Acceleration Sweep rate Duration of each direction
Hz mm oct/min h
m/s
1 10 to 2 000 0,75 147 20 4
Requirements: 1 μs max. of duration of disturbance during the test. The appearance, contact
resistance (6.2.3), and shall meet the requirements of this specification after test.
6.4.2 Shock
Conditions: IEC 60512-6-3, Test 6c.
Standard atmospheric conditions.
Acceleration: 490 m/s , duration: 11 ms, half-sine wave, 3 shocks in each axis and direction, 3
axes mutually perpendicular to each other.
Requirements: 1 μs max. of duration of disturbance during the test. Appearance, contact
resistance (6.2.3) shall meet the requirements of this specification after test.
6.5 Climatic test
6.5.1 Damp heat, steady state
Conditions: IEC 60512-11-3, Test 11c.
Duration: 10 days, mated connectors.
Requirements: insulation resistance (6.2.4), voltage p
...