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
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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

– 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

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
Figure 8 – Current-temperature derating (4 mm wire size) . 20

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

– 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

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,
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
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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 61076-8-106 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.

– 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.

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
– 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

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

– 10 – IEC 61076-8-106:2023 © IEC 2023
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 60695-2-12, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods –
Glow-wire flammability index (GWFI) test method for materials
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 Number of contacts and contact cavities
Number of contacts: power contacts: 2.
Number of contact cavities: 2 (for removable contacts only).
2.
Conductor cross-sectional area range: 4,0 mm
4.2 Ratings and characteristics
4.2.1 Ratings and characteristics of connectors
Rated voltage: 400 V DC.
Rated impulse voltage: 4 000 V.
Pollution degree: 2.
Rated current: 16 A.
Insulation resistance: 5 000 MΩ min.
Rated breaking capacity: Mated connectors are to be inserted and withdrawn with 50 cycles
with rated voltage and rated current.
4.2.2 Rating and characteristics of fuses
Fuseholders incorporated in the connectors according to this specification are deemed to be
equipped with replaceable cartridge fuse-links according to IEC 60127-1:2006.
Rated voltage: 200 V DC.
Rated current: 16 A.
4.3 Recommended method of termination
According to IEC 60999-1 or IEC 60352 series.
4.4 Safety aspects
For safety aspects IEC 61984 shall be considered.

– 12 – IEC 61076-8-106:2023 © IEC 2023
4.5 Systems of levels
4.5.1 Performance levels
None specified.
4.5.2 Compatibility levels
The connector according to this document is intermateable according to IEC 61076-1.
4.6 Classification into climatic categories
Classification into climatic categories is specified in 6.1.
4.7 Clearance and creepage distances
Creepage and clearance distances shall be as per 6.2.1 (connector without breaking capacity
as defined in IEC 61984).
4.8 Current-carrying capacity
The current carrying capacity of these connectors shall be such that at 85 °C ± 2 °C
temperature they will be able to carry their rated current per 4.2.1 fulfilling the requirement of
6.3.2.
4.9 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 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.
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.

5.2.2 Isometric view of free connector

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

View of fuseholder: Dimensions of the cartridge fuse-links are 6,3 mm × 25,4 mm. Other dimensions of fuse-links
that meet the performance requirements should be used.
Figure 2 – Isometric view – Fixed connector
5.3 Engagement (mating) information
Not applicable.
5.4 Fixed connectors
5.4.1 General
Figure 3, Table 1, Figure 4 and Table 2 show the fixed connector drawings and dimensions.

– 14 – IEC 61076-8-106:2023 © IEC 2023
5.4.2 Dimensions
Figure 3 – Fixed connector
Table 1 – Fixed connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
A 1,05 1,1 1,15
B 11,55 11,6 11,65
C 24,65 24,7 24,75
D 25,65 25,7 25,75
E 2,92 3,00 3,08
F 6,07 6,15 6,23
G 11.42 11,5 11,58
H 5,92 6,00 6,08
J 0,78 0,80 0,82
K 0,45 × 45° 0,6 × 45° 0,75 × 45°
L 1,54 × 45° 1,69 × 45° 1,84 × 45°
M 26,7 26,8 26,9
N 11,3 11,4 11,5
P 8,3 8,4 8,5
Q 1,55 1,6 1,65
R 0,9 1,0 1,1
S 31,6 31,7 31,8
T 32,4 32,5 32,6
U 33,2 33,3 33,4
a) code 1 b) code 2
Figure 4 – Fixed connector coding
Table 2 – Fixed connector coding dimensions
dimensions in mm
Code 1 fixed connector Code 2 fixed connector
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
T 20,75 20,8 20,85 20,75 20,8 20,85
U 17.55 18,6 18,65 12.46 12,56 12,66
V 14,85 14,9 14,95 9,32 9,42 9,52
W 10,25 10,3 10,35 3,1 3,2 3,3
X 6,55 6,6 6,65 R1,5 R1,65 R1,8
Y 4,35 4,4 4,45 R0,4 R0,5 R0,6
Z 4,60 4,65 4,70 R0,4 R0,5 R0,6
AA 3,35 3,4 3,45 R0,95 R1,05 R1,15
AB R1,5 R1,65 R1,8 4,55 4,65 4,75
AC 17,55 18,6 18,65 3,3 3,4 3,5
AD 20,75 20,8 20,85 12,46 12,56 12,66
AF -- -- -- 20,75 20,8 20,85
5.4.3 Terminations
Terminations shall be according to 4.3.
5.5 Free connectors
5.5.1 General
Figure 5, Table 3, Figure 6, Table 4 and show free connector drawings and dimensions.

– 16 – IEC 61076-8-106:2023 © IEC 2023
5.5.2 Dimensions
Figure 5 – Free connector
Table 3 – Free connector dimensions
dimensions in mm
Letter Minimum Nominal Maximum
A 1,35 1,4 1,45
B 11,55 11,6 11,65
C 25,4 25,5 25,6
D 25,9 26 26,1
E 2,25 2,3 2,35
F 5,1 5,2 5,3
G 11.12 11.2 11.28
H 6,12 6,2 6,28
J 1,05 1,1 1,15
K 0,4 × 45 0,5 × 45° 0,6 × 45
L 1,5 × 45 1,6 × 45° 1,7 × 45
M 26,45 26,6 26,75
N 27,85 28 28,15
P 14,35 14,45 14,55
a) code 1 b) code 2
Figure 6 – Free connector coding dimensions
Table 4 – Free connector coding dimensions
dimensions in mm
Code 1 free connector Code 2 free connector
Letter
Minimum Nominal Maximum Minimum Nominal Maximum
T 20,7 20,8 20,9 20,7 20,8 20,9
U 19,09 19,19 19,29 12,6 12,7 12,8
V 14,9 15 15,1 9,45 9,55 9,65
W 10,1 10,2 10,3 3,3 3,4 3,5
X 5,91 6,01 6,11 R1,35 R1,5 R1,65
Y 4,3 4,4 4,5 R0,35 R0,5 R0,65
Z 4,4 4,5 4,6 R0,35 R0,5 R0,65
AA 3,15 3,25 3,35 R0,35 R0,5 R0,65
AB R1,35 R1,5 R1,65 4,4 4,5 4,6
AC _ _ _ 3,13 3,23 3,33
5.5.3 Terminations
Terminations shall be according to 4.1.
5.6 Accessories
Not applicable.
5.7 Mounting information
5.7.1 General
Mounting information may be specified upon agreement between manufacturer and customer.

– 18 – IEC 61076-8-106:2023 © IEC 2023
5.7.2 Gauges – 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. See Figure 7 and Table 5.

Figure 7 – Gauge for contacts
Table 5 – Gauge dimensions
dimensions in mm
Gauge Mass Application h
g mm
+0,005
P1 - Sizing 0,83
P2 300 Retention force 0,77
–0,005
6 Technical characteristics
6.1 Classification into climatic categories (Table 6)
Table 6 – Climatic categories
Climatic categories Lower temperature Upper temperature Steady state damp-heat
°C °C days
40/125/10 -40 +125 10
6.2 Electrical characteristics
6.2.1 Clearance and creepage distance
Contacts: clearance 4 mm min., creepage distance 4 mm min.
6.2.2 Voltage proof
Conditions: IEC 60512-4-1, method A.
Standard atmospheric conditions, half of the connectors are mated and half unmated. Test
voltage shall be 2,21 kV AC.
Requirements: There shall be no breakdown or flashover.

6.2.3 Contact resistance
Conditions: IEC 60512-2-1.
Standard atmospheric conditions.
Requirements:
Initial: 7 mΩ max.
Final: 14 mΩ max.
6.2.4 Insulation resistance
Conditions: IEC 60512-3-1, method A.
Standard atmospheric conditions, half of the connectors are mated and half unmated.
Test voltage: 500 V DC ± 50 V DC.
Requirements:
Initial: Contact/contact: 5 000 MΩ min.
Final: Contact/contact: 200 MΩ min.
6.3 Temperature rise
6.3.1 General
Conditions: IEC 60512-5-1.
Mated connectors, contacts are terminated with IEC 60228 class 5 stranded copper wires, wire
cross-sectional area 4 mm .
Test current: 16 A. Requirements: value of temperature rise: 40 K max., appearance of the
connectors shall meet the requirements of test phase P1.
6.3.2 Current temperature derating
The current-carrying capacity shall be verified according to IEC 60512-5-2, Test 5b, with the
maximum accepted cross-sectional area (4 mm ), to be in compliance with the rated current
(15 A at 85 °C) and the upper limiting temperature (125 °C). See in Figure 8 the current-
temperature derating.
– 20 – IEC 61076-8-106:2023 © IEC 2023

NOTE The diagram is expression of the formula
0,5
I = 28,3 × (1 – T/125)
(T)
Figure 8 – Current-temperature derating (4 mm wire size)
6.3.3 Electrical load and temperature
Conditions: IEC 60512-9-2.
Standard atmospheric conditions, mated connectors, contacts are terminated with IEC 60228
class 5 stranded copper wires, wire cross-sectional area in accordance with 4.1.
Test current: 16 A, temperature: 85 °C ± 2 °C, duration: 500 h.
Requirements: The appearance, contact resistance (6.2.3), insulation resistance (6.2.4),
voltage proof (6.2.2), insertion and withdrawal force (6.4.3) shall meet the requirements of this
specification after test.
6.3.4 Fuse tripping
Standard atmospheric conditions, 2 times the rated current.
Requirements: fuses shall be fused and open the circuit in two minutes, indicator shall be lighted
up.
6.4 Mechanical characteristics
6.4.1 Mechanical operation
Conditions: IEC 60512-9-1.
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), and
voltage proof (6.2.2) shall meet the requirements of this specification after test.
6.4.2 Effectiveness of connector coupling devices
Conditions: IEC 60512-15-6.
Standard atmospheric conditions, mated connectors, contacts are terminated with IEC 60228
class 5 stranded copper wires, wire cross-sectional area in accordance with 4.1.
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; the appearance shall meet the requirements of test phase P1.
6.4.3 Insertion and withdrawal force
Condition: IEC 60512-13-1.
Standard atmospheric conditions.
Rate of engagement and separation: 10 mm/s max.
Requirements: insertion force: 55 N max., withdrawal force: 6 N min.
6.4.4 Contact retention in insert
Conditions: IEC 60512-15-1.
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. The appearance of connectors shall meet
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