IEC 61076-8-109:2023

Connectors for electrical and electronic equipment - Product requirements - Part 8-109: Power connectors - Detail specification for 2P 130 A, 1 000 V plus 2P 5 A 50 V rectangular housing shielded connectors with IP65/IP68 degree of protection when mated and locked, and IPXXB when unmated

IEC 61076-8-109:2023 describes free and fixed rectangular connectors with:
- 2P power plus 2P signal contacts;
- plastic housing with locking lever and four possible codings;
- 130 A rated current, 1 000 V DC rated voltage on the power section;
- 5 A rated current, 50 V DC rated voltage on the signal section;
- individual shielding around each power contact with relevant shielding termination;
- IP65/IP68 degree of protection when mated and locked and IPXXB on both plug, and receptacle parts when unmated;
- hereinafter referred to as a connector, for use in electrical and electronic equipment, including overall dimensions, interface dimensions, technical characteristics, performance requirements and test methods.

Connecteurs pour équipements électriques et électroniques - Exigences de produit - Partie 8-109: Connecteurs d’alimentation - Spécification particulière pour les connecteurs blindés rectangulaires à 2 pôles de 130 A et 1 000 V plus 2 pôles de 5 A et 50 V, avec un degré de protection IP65/IP68 lorsqu’ils sont accouplés et verrouillés, et IPXXB lorsqu’ils sont désaccouplés, logés dans un boîtier

IEC 61076-8-109:2023 décrit les connecteurs rectangulaires libres et fixes avec :
- Puissance 2P plus contacts de signal 2P;
- boîtier en plastique avec levier de verrouillage et quatre codages possibles;
- Courant nominal de 130 A, tension nominale de 1 000 V CC sur la section de puissance;
- 5 A de courant nominal, 50 V CC de tension nominale sur la section de signal;
- blindage individuel autour de chaque contact de puissance avec terminaison de blindage pertinente;
- Degré de protection IP65/IP68 lorsqu’il est accouplé et verrouillé et IPXXB sur les deux fiches et les pièces de prise lorsqu’elles ne sont pas accouplées;
- ci-après dénommé connecteur, destiné à être utilisé dans des équipements électriques et électroniques, y compris les dimensions hors tout, les dimensions d’interface, les caractéristiques techniques, les exigences de performance et les méthodes d’essai.

General Information

• Status: Published
• Publication Date: 11-May-2023
• ICS: 31.220.10 - Plug-and-socket devices. Connectors
• Technical Committee: SC 48B - Electrical connectors
• Current Stage: PPUB - Publication issued
• Start Date: 12-May-2023
• Completion Date: 09-Jun-2023

Standards Content (Sample)

IEC 61076-8-109 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Product requirements –
Part 8-109: Power connectors – Detail specification for 2P 130 A, 1 000 V plus
2P 5 A 50 V rectangular housing shielded connectors with IP65/IP68 degree of
protection when mated and locked, and IPXXB when unmated

Connecteurs pour équipements électriques et électroniques – Exigences de
produit –
Partie 8-109: Connecteurs d’alimentation – Spécification particulière pour les
connecteurs blindés rectangulaires à 2 pôles de 130 A et 1 000 V plus 2 pôles de
5 A et 50 V, avec un degré de protection IP65/IP68 lorsqu’ils sont accouplés et
verrouillés, et IPXXB lorsqu’ils sont désaccouplés, logés dans un boîtier

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IEC 61076-8-109 ®
Edition 1.0 2023-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electrical and electronic equipment – Product requirements –

Part 8-109: Power connectors – Detail specification for 2P 130 A, 1 000 V plus

2P 5 A 50 V rectangular housing shielded connectors with IP65/IP68 degree of

protection when mated and locked, and IPXXB when unmated

Connecteurs pour équipements électriques et électroniques – Exigences de

produit –
Partie 8-109: Connecteurs d’alimentation – Spécification particulière pour les

connecteurs blindés rectangulaires à 2 pôles de 130 A et 1 000 V plus 2 pôles de

5 A et 50 V, avec un degré de protection IP65/IP68 lorsqu’ils sont accouplés et

verrouillés, et IPXXB lorsqu’ils sont désaccouplés, logés dans un boîtier

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.220.10 ISBN 978-2-8322-6982-4

– 2 – IEC 61076-8-109:2023 © 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 Clearance and creepage distance . 12
4.6 Current-carrying capacity . 12
4.7 Marking . 13
5 Dimensional information . 13
5.1 General . 13
5.2 Isometric view and common features . 13
5.2.1 Isometric view of free connectors (Figure 1) . 13
5.2.2 Isometric view of fixed connectors (Figure 2) . 13
5.3 Engagement (mating) information . 13
5.3.1 General . 13
5.3.2 Perpendicular to the engaging (mating) direction . 14
5.3.3 Inclination . 14
5.4 Free connectors . 14
5.4.1 Dimensions (Figure 3, Figure 4, Table 2, Table 3, Table 4) . 14
5.4.2 Terminations . 17
5.5 Fixed connectors . 17
5.5.1 Dimensions (Figure 5, Table 5) . 17
5.5.2 Terminations . 19
5.6 Accessories . 20
5.7 Mounting information . 20
5.8 Gauges – Sizing gauges and retention force gauges . 20
6 Technical characteristics . 20
6.1 Classification into climatic categories . 20
6.2 Electrical characteristics . 21
6.2.1 Clearance and creepage distance . 21
6.2.2 Voltage proof . 21
6.2.3 Contact resistance . 21
6.2.4 Housing (shell) electrical continuity and shielding effectiveness . 21
6.2.5 Insulation resistance . 21
6.2.6 Current-carrying capacity . 22
6.2.7 Electrical load and temperature . 22
6.3 Mechanical characteristics . 22
6.3.1 Mechanical operation . 22

6.3.2 Effectiveness of connector coupling devices . 23
6.3.3 Gauge retention force (resilient contact) . 23
6.3.4 Engaging and separating forces . 23
6.3.5 Contact retention in insert . 23
6.3.6 Polarizing and keying method . 23
6.4 Dynamic stress tests . 23
6.4.1 Vibration (sine) . 23
6.4.2 Shock . 24
6.4.3 Free fall (repeated) . 24
6.4.4 IP degree of protection . 24
6.4.5 Glow-wire flammability test method for end-products (GWEPT) . 24
6.5 Climatic tests . 25
6.5.1 Damp heat, steady state . 25
6.5.2 Rapid change of temperature . 25
6.5.3 Corrosion, salt mist . 25
6.5.4 Dry heat . 25
6.5.5 Cold. 25
6.5.6 Low air pressure . 25
6.6 Environmental aspects . 26
6.6.1 Marking of insulation material (plastic) . 26
6.6.2 Design/use of material . 26
7 Test schedule . 26
7.1 General . 26
7.2 Test schedules . 26
7.2.1 Basic (minimum) test schedule . 26
7.2.2 Full test schedule . 26
7.3 Test procedures and measurement methods . 36
7.4 Pre-conditioning . 36
7.5 Wiring and mounting of test specimens . 36
7.5.1 Wiring . 36
7.5.2 Mounting . 36

Figure 1 – Free connectors . 13
Figure 2 – Fixed connectors . 13
Figure 3 – Free connector . 14
Figure 4 – Free connector codings . 16
Figure 5 – Fixed connector . 17
Figure 6 – Fixed connector codings . 19
Figure 7 – Gauge for signal contacts. 20
Figure 8 – Gauge for power contacts . 20
Figure 9 – Current-temperature derating (50 mm wire size) . 22

Table 1 – Climatic category. 12
Table 2 – Free connector dimensions . 14
Table 3 – Free connector codings dimensions (codings 1 and 2). 16
Table 4 – Free connector codings dimensions (codings 3 and 4). 17
Table 5 – Fixed connector dimensions . 18

– 4 – IEC 61076-8-109:2023 © IEC 2023
Table 6 – Fixed connector codings dimensions (codings 1 and 2) . 19
Table 7 – Fixed connector codings dimensions (codings 3 and 4) . 19
Table 8 – Gauge dimensions. 20
Table 9 – Voltage proof . 21
Table 10 – Vibration . 24
Table 11 – Number of test specimens . 26
Table 12 – Test group P . 27
Table 13 – Test group AP . 28
Table 14 – Test group BP . 29
Table 15 – Test group CP . 30
Table 16 – Test group DP . 31
Table 17 – Test group EP . 32
Table 18 – Test group GP . 33
Table 19 – Test group HP . 34
Table 20 – Test group JP . 34
Table 21 – Test group KP . 35

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 8-109: Power connectors –
Detail specification for 2P 130 A, 1 000 V plus 2P 5 A 50 V rectangular
housing shielded connectors with IP65/IP68 degree of protection when
mated and locked, and IPXXB when unmated

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
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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
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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 61076-8-109 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/2949/CDV 48B/2996/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
– 6 – IEC 61076-8-109:2023 © IEC 2023
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/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 61076-8-109
IEC SC 48B – Electrical connectors
Detail specification in accordance with IEC 61076-8
For rated current of 130 A DC;
2P power plus 2P signal;
Female contacts for power;
Free First break last make male contacts for
connector signal;
Straight insertion and withdrawal;
360° shielding;
Free connector
Four codings.
For rated current of 130 A DC;
2P power plus 2P signal;
Male contacts for power;
Fixed
Female contacts for signal;
connector
Straight insertion and withdrawal;
360°shielding;
Fixed connector
Four codings.
– 8 – IEC 61076-8-109:2023 © IEC 2023
CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 8-109: Power connectors –
Detail specification for 2P 130 A, 1 000 V plus 2P 5 A 50 V rectangular
housing shielded connectors with IP65/IP68 degree of protection when
mated and locked, and IPXXB when unmated

1 Scope
This part of IEC 61076-8 describes free and fixed rectangular connectors with:
– 2P power plus 2P signal contacts;
– plastic housing with locking lever and four possible codings;
– 130 A rated current, 1 000 V DC rated voltage on the power section;
– 5 A rated current, 50 V DC rated voltage on the signal section;
– individual shielding around each power contact with relevant shielding termination;
– IP65/IP68 degree of protection when mated and locked and IPXXB on both plug, and
receptacle parts when unmated;
hereinafter referred to as a connector, for use in electrical and electronic equipment, including
overall dimensions, interface dimensions, technical characteristics, performance requirements
and test methods.
Connectors according to this document are intended for use in class II equipment. Hence, they
are not equipped with PE contact.
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 60228:2004, Conductors of insulated cables
IEC 60352-1, Solderless connections – Part 1: Wrapped connections – General requirements,
test methods and practical guidance
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 60512-2-2, 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

– 10 – IEC 61076-8-109:2023 © IEC 2023
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 60512-11-11, Connectors for electronic equipment – Tests and measurements – Part 11-11:
Climatic tests – Test 11k: Low air pressure
IEC 60512-11-12, Connectors for electronic equipment – Tests and measurements – Part 11-12:
Climatic tests – Test 11m: Damp heat, cyclic
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 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 60695-2-11:2021, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end products (GWEPT)
IEC 60999-1, Connecting devices – Electrical copper conductors – Safety requirements for
screw-type and screwless-type clamping units – Part 1: General requirements and particular
2 2
requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
IEC 60999-2, Connecting devices – Electrical copper conductors – Safety requirements for
screw-type and screwless-type clamping units – Part 2: Particular requirements for clamping
2 2
units for conductors above 35 mm up to 300 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 62153-4-6, Metallic cables and other passive components test methods – Part 4-6:
Electromagnetic compatibility (EMC) – Surface transfer impedance – Line injection method
IEC 62430:2019, Environmentally conscious design (ECD) – Principles, requirements and
guidance
IEC Guide 109, 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
According to IEC 60352 series, IEC 60999-1 or IEC 60999-2.
4.1.2 Number of contacts and contact cavities
Number of contacts: power contacts: 2, shielding contacts: 2 (surrounding each power contact),
signal contacts: 2.
Number of contact cavities (for removable contacts): 4.
Suitable wire: cross-sectional area for power contacts: 50 mm , cross-sectional area for signal
contacts: 0,5 mm . The core of each power wire is deemed to be individually shielded, each
shielding requiring a dedicated termination.
4.2 Ratings and characteristics
Connectors according this specification are connectors without breaking capacity (COC)
according to IEC 61984, therefore they are not intended to be engaged or disengaged in normal
use when live or under load.
– 12 – IEC 61076-8-109:2023 © IEC 2023
Rated voltage: power contacts: 1 000 V DC, signal contacts: 50 V DC.
Voltage proof of power contacts: 4 000 V AC, voltage proof of signal contacts: 500 V AC.
Pollution degree: 2.
Rated current (at 85 °C): power contacts: 130 A, signal contacts: 5 A. See derating diagram in
Figure 9.
Insulation resistance: 5 000 MΩ min.
Climatic category：55/125/10.
4.3 Systems of levels
4.3.1 Performance levels
Performance level for these connectors is 1.
4.3.2 Compatibility levels
The compatibility levels of the products specified by this document shall comply with 2.2.3.3 of
IEC 61076-1:2006 (level 2 – intermateable).
4.4 Classification into climatic categories
Conditions: according to IEC 60068-1 and Table 1.
Table 1 – Climatic category
Climatic category Lower temperature Upper temperature Damp heat, steady state
°C °C days
55/125/10 -55 +125 10
4.5 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).
Power contacts: clearance 5,5 mm min., creepage distance 10 mm min.
Signal contacts: clearance 0,8 mm min., creepage distance 1,2 mm min.
Between any power contact and the most adjacent signal contact: clearance 5,5 mm min.,
creepage distance 10 mm min.
4.6 Current-carrying capacity
The current-carrying capacity shall be measured according to IEC 60512-5-2, test 5b and
comply with 6.2.6.
4.7 Marking
The marking of the connector and the package shall be in accordance with 2.7 of IEC 61076-
1:2006.
5 Dimensional information
5.1 General
Dimensions are given in millimetres. Drawings are shown in the first 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.
For safety aspects IEC 61984 shall be considered.
Missing dimensions shall be chosen according to the common characteristics and intended use.
5.2 Isometric view and common features
5.2.1 Isometric view of free connectors (Figure 1)

Figure 1 – Free connectors
5.2.2 Isometric view of fixed connectors (Figure 2)

Figure 2 – Fixed connectors
5.3 Engagement (mating) information
5.3.1 General
5.3.1.1 Engaging (mating) direction
Not applicable.
5.3.1.2 Contact levels and sequencing
Power contacts shall be engaged prior to signal contacts in the mating process of connectors.
Power contacts shall be withdrawn after signal contacts in the unmating process of connectors.
In other words, signal contacts shall be of the FBLM (first break last make) type.

– 14 – IEC 61076-8-109:2023 © IEC 2023
Shielding contacts surrounding each power contact shall make after power contacts and before
signal contacts.
5.3.2 Perpendicular to the engaging (mating) direction
Not applicable.
5.3.3 Inclination
Not applicable.
5.4 Free connectors
5.4.1 Dimensions (Figure 3, Figure 4, Table 2, Table 3, Table 4)

Figure 3 – Free connector
Table 2 – Free connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
E 4,2 4,2 4,3
F 20,5 20,5 20,8
G 26,3 26,3 26,8
H 28 28 28,5
dimensions in mm
Letter Minimum Nominal Maximum
I Ø8 Ø8 Ø8,2
J Ø19,5 Ø19,5 Ø19,8
K Ø21,3 Ø21,3 Ø21,6
L Ø8,1 Ø8,1 Ø8,3
M Ø16,3 Ø16,6 Ø16,6
N Ø21,5 Ø21,5 Ø21,8
O 53,7 54 54
P 6,2 6,2 6,3
Q 9,2 9,2 9,5
R 17,9 17,9 18,1
S 22,6 22,7 22,8
T 26,3 26,4 26,5
U 0,4 0,6 0,6
V 2,1 2,2 2,3
W 7,8 7,8 8,1
X 29,2 29,2 29,5
Y 29,8 30 30
Z 8,4 8,4 8,6
AA 9,2 9,2 9,5
AB 1,7 1,8 1,9
AC 8,5 8,5 8,6
AD 7,4 7,4 7,5
AE 7,9 8 8,1
AF 14,9 15 15
AG 17,4 17,5 17,5
AH 5,6 5,6 5,7
AI 25,9 26 26,1
AJ 59 59 59,2
AK 61,4 61,4 61,6
AL 64,9 65 65,1
AM 75,9 76 76,1
AN R10,2 R10,2 R10,4
AO 3,4 3,4 3,7
AP Ø5,9 Ø6 Ø6
AQ 10,8 10,9 11
AR 35 35 35,2
AS R11,9 R12 R12,1
AT R11,7 R11,7 R12
AU 0,61 0,63 0,65
AV 0,61 0,63 0,65
AW 2,9 3 3,1
– 16 – IEC 61076-8-109:2023 © IEC 2023

Figure 4 – Free connector codings
The free connector hood may have four different combinations of coding keyways in its contour,
as shown in Figure 4, using four integral coding keyways on the short sides of the housing that,
in combination with the corresponding four keys in the contour of the mating fixed connector
housing, act as coding device, i.e. prevent the mating or the engagement of two connectors of
the same family which should not mate in an application.
Table 3 – Free connector codings dimensions (codings 1 and 2)
dimensions in mm
Coding 1 Coding 2
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
BA 2,5 2,5 2,7 4 4 4,2
BB 4 4 4,2 2,5 2,5 2,7
BC 4 4 4,2 4 4 4,2
BD 4 4 4,2 4 4 4,2
BE 9,9 10 10,1 9,9 10 10,1
BF 29,9 30 30,1 29,9 30 30,1
BG 54,2 54,4 54,4 54,2 54,4 54,4
BH 20 20 20,1 20 20 20,1
BI 8,5 8,5 8,6 8,5 8,5 8,6
BJ 29,2 29,2 29,4 29,2 29,2 29,4

Table 4 – Free connector codings dimensions (codings 3 and 4)
dimensions in mm
Coding 3 Coding 4
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
BA 4 4 4,2 4 4 4,2
BB 4 4 4,2 4 4 4,2
BC 2,5 2,5 2,7 4 4 4,2
BD 4 4 4,2 2,5 2,5 2,7
BE 9,9 10 10,1 9,9 10 10,1
BF 29,9 30 30,1 29,9 30 30,1
BG 54,2 54,4 54,4 54,2 54,4 54,4
BH 20 20 20,1 20 20 20,1
BI 8,5 8,5 8,6 8,5 8,5 8,6
BJ 29,2 29,2 29,4 29,2 29,2 29,4

5.4.2 Terminations
Terminations either according to IEC 60352 series (solderless connections) or according to
IEC 60999 series (screw-type and screwless-type clamping units).
5.5 Fixed connectors
5.5.1 Dimensions (Figure 5, Table 5)

Figure 5 – Fixed connector
– 18 – IEC 61076-8-109:2023 © IEC 2023
Table 5 – Fixed connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
D 11,8 12 12
E 15,4 15,5 15,6
F 29,5 29,5 29,8
G Ø19,1 Ø19,2 Ø19,2
H Ø7,95 Ø8 Ø8,05
I Ø17 Ø17 Ø17,2
J Ø20,8 Ø21 Ø21
K 2,5 2,5 2,6
L 6,4 6,5 6,6
M Ø5,9 Ø6 Ø6
N 26 26 26,4
O 6,2 6,2 6,4
P 3 3 3,1
Q 23,9 23,9 24
R 25,1 25,2 25,3
S 20,1 20,1 20,2
T 30 30 30,5
U 2,9 3 3
V 7,9 8 8
W 10,6 10,7 10,8
X 15,4 15,5 15,5
AA 19,7 19,8 19,8
AB 25,9 26 26,1
AC 54,9 55 55
AD 60,8 61 61
AE 64,8 65 65
AF 74,9 75 75
AG R10,8 R11 R11,2
AH 1,7 1,8 1,9
AI 7,9 7,9 8
AJ 30,8 31 31
AK 2,9 3 3,1
AL 0,7 0,7 0,8
AM 4,9 5 5
AN R1,5 R1,5 R1,7
AO 0,7 0,7 0,8
AP 6,9 7 7
AQ 0,4 0,5 0,6
AR 2,9 3 3,1
AS 4,9 5 5,1
AT 5,1 5,2 5,2
AU Ø5,9 Ø6 Ø6
Figure 6 – Fixed connector codings
The fixed connector housing may have four different combinations of coding keys in its contour,
as shown in Figure 6, using four integral coding keys on the short sides of the housing that, in
combination with the corresponding four keyways in the contour of the mating free connector
hood, act as coding device, i.e. prevent the mating or the engagement of two connectors of the
same family which should not mate in an application. (Table 6 and Table 7).
Table 6 – Fixed connector codings dimensions (codings 1 and 2)
dimensions in mm
Coding 1 Coding 2
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
BA 3,4 3,5 3,5 3,4 3,5 3,5
BB 3,4 3,5 3,5 3,4 3,5 3,5
BC 3,4 3,5 3,5 1,8 2 2
BD 1,8 2 2 3,4 3,5 3,5
BE 9,9 10 10,1 9,9 10 10,1
BF 29,9 30 30,1 29,9 30 30,1
Table 7 – Fixed connector codings dimensions (codings 3 and 4)
dimensions in mm
Coding 3 Coding 4
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
BA 3,4 3,5 3,5 1,8 2 2
BB 1,8 2 2 3,4 3,5 3,5
BC 3,4 3,5 3,5 3,4 3,5 3,5
BD 3,4 3,5 3,5 3,4 3,5 3,5
BE 9,9 10 10,1 9,9 10 10,1
BF 29,9 30 30,1 29,9 30 30,1
5.5.2 Terminations
Terminations either according to IEC 60352 se
...