IEC 61076-2-104:2014

IEC 61076-2-104 ®
Edition 2.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electronic equipment – Product requirements –
Part 2-104: Circular connectors – Detail specification for circular connectors
with M8 screw-locking or snap-locking

Connecteurs pour équipements électroniques – Exigences de produit –
Partie 2-104: Connecteurs circulaires – Spécification particulière pour les
connecteurs circulaires M8 à vis ou à encliquetage
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IEC 61076-2-104 ®
Edition 2.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Connectors for electronic equipment – Product requirements –

Part 2-104: Circular connectors – Detail specification for circular connectors

with M8 screw-locking or snap-locking

Connecteurs pour équipements électroniques – Exigences de produit –

Partie 2-104: Connecteurs circulaires – Spécification particulière pour les

connecteurs circulaires M8 à vis ou à encliquetage

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 31.220.10 ISBN 978-2-8322-9670-3

– 2 – IEC 61076-2-104:2014 © IEC 2014
CONTENTS
FOREWORD . 5
1 Scope . 8
2 Normative references . 8
3 Technical information . 9
3.1 Terms and definitions . 9
3.2 Recommended method of termination . 9
3.3 Number of contacts, ratings and characteristics . 9
3.4 Creepage and clearance distances . 9
3.5 Marking . 10
3.6 Safety aspects . 10
4 Dimensional information . 10
4.1 General . 10
4.2 Survey of styles and variants . 10
4.2.1 General . 10
4.2.2 Fixed connectors . 10
4.2.3 Free connectors . 12
4.3 Interface dimensions . 17
4.3.1 Pin front and side view A-coding . 17
4.3.2 Pin front view B-coding . 19
4.4 Engagement (mating) information . 20
4.5 Gauges . 21
4.5.1 Sizing gauges and retention force gauges . 21
5 Characteristics . 22
5.1 Climatic category . 22
5.2 Electrical characteristics . 22
5.2.1 Rated voltage – Rated impulse voltage – Pollution degree . 22
5.2.2 Voltage proof . 23
5.2.3 Current-carrying capacity . 23
5.2.4 Contact resistance . 23
5.2.5 Insulation resistance . 23
5.3 Mechanical characteristics . 24
5.3.1 Mechanical operation . 24
5.3.2 Insertion and withdrawal forces . 24
5.3.3 Contact retention in insert . 24
5.3.4 Polarizing method . 24
5.3.5 Vibration (sinusoidal) . 24
5.4 Other characteristics . 25
5.4.1 IP degree of protection . 25
6 Test schedule . 25
6.1 General . 25
6.1.1 Introductury remarks . 25
6.1.2 Arrangement for contact resistance measurements . 25
6.1.3 Arrangement for dynamic stress tests (vibration) . 26
6.2 Test schedule . 28
6.2.1 Test group P – Preliminary . 28
6.2.2 Test group AP – Dynamic/ Climatic . 29

6.2.3 Test group BP – Mechanical endurance . 31
6.2.4 Test group CP – Electrical load . 33
6.2.5 Test group DP – Chemical resistivity . 34
6.2.6 Test group EP – Connection method tests . 34
Annex A (informative) Diameter of the female connector body . 35

Figure 1 – Tube insert, male contacts dip solder mounting, long version . 11
Figure 2 – Tube insert, male contacts dip solder mounting, short version . 11
Figure 3 – Fixed connector with wire ends, male contacts, single hole mounting . 11
Figure 4 – Fixed connector with wire ends, female contacts, single hole mounting . 12
Figure 5 – Rewireable connector, male contacts, straight version, with locking nut . 13
Figure 6 – Rewireable connector, male contacts, right angled version, with locking nut . 13
Figure 7 – Non-rewireable connector, male contacts, straight version, snap-locking . 14
Figure 8 – Non-rewireable connector, male contacts, straight version, with locking nut . 14
Figure 9 – Non-rewireable connector, male contacts, right angled version, with locking nut . 14
Figure 10 – Rewireable connector, female contacts, straight version, with locking nut . 15
Figure 11 – Rewireable connector, female contacts, right angled version, with locking nut . 15
Figure 12 – Non-rewireable connector, female contacts, straight version, snap-locking . 15
Figure 13 – Non-rewireable connector, female contacts, right angled version, snap-
locking . 16
Figure 14 – Non-rewireable connector, female contacts, straight version, with locking nut . 16
Figure 15 – Non-rewireable connector, female contacts, right angled version, with
locking nut . 16
Figure 16 – Pin front view A-coding . 17
Figure 17 – Pin side view A-coding . 18
Figure 18 – Contact position A-coding – Front view . 19
Figure 19 – Pin front view B-coding . 19
Figure 20 – Contact position – B-coding – Front view. 20
Figure 21 – Engagement (mating) information . 20
Figure 22 – Gauge dimensions . 22
Figure 23 – Contact resistance arrangement . 26
Figure 24 – Dynamic stress test arrangement . 27
Figure A.1 – Diameter of the female connector body, coding variant A . 35
Figure A.2 – Shape of the female connector body, coding variant B . 35

Table 1 – Connector ratings related to coding and number of contacts . 9
Table 2 – Creepage and clearance distances . 9
Table 3 – Styles of fixed connectors . 10
Table 4 – Styles of free connectors . 12
Table 5 – Connector dimensions in mated and locked position . 21
Table 6 – Gauges . 22
Table 7 – Climatic category. 22
Table 8 – Rated voltage – Rated impulse voltage – Voltage proof . 23
Table 9 – Voltage proof . 23

– 4 – IEC 61076-2-104:2014 © IEC 2014
Table 10 – Number of mechanical operations . 24
Table 11 – Insertion and withdrawal forces . 24
Table 12 – Number of test specimens . 25
Table 13 – Test group P . 28
Table 14 – Test group AP . 29
Table 15 – Test group BP . 31
Table 16 – Test group CP . 33
Table 17 – Test group DP . 34
Table 18 – Test group EP . 34

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-104: Circular connectors –
Detail specification for circular connectors
with M8 screw-locking or snap-locking

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
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6) All users should ensure that they have the latest edition of this publication.
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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.
International Standard IEC 61076-2-104 has been prepared by subcommittee 48B:
Connectors, of IEC technical committee 48: Electromechanical components and mechanical
structures for electronic equipment.
This second edition cancels and replaces the first edition published in 2008. This edition
constitutes a technical revision.
The main technical changes with regard to the previous edition are as follows:
• three new type ways have been added to the A-coding, including new gauges and contact
diameters;
• the type designation has been removed.

– 6 – IEC 61076-2-104:2014 © IEC 2014
A list of all parts of the IEC 61076 series, under the general title Connectors for electronic
equipment – Product requirements, can be found on the IEC website.
The text of this standard is based on the following documents:
FDIS Report on voting
48B/2384/FDIS 48B/2399/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
International Electrotechnical Commission IEC 61076-2-104
IEC SC 48B – Connectors
Specification available from: IEC General secretariat or from the
addresses shown on the inside cover.
ELECTRONIC COMPONENTS detail specification in accordance with
IEC 61076-1
Circular connectors
M8/ diameter 8 mm 3 to 8 way
Male and female contacts
Male and female connectors
Rewireable – Non-rewireable
Free cable connectors
Straight and right angle connectors
Fixed connectors
Flange mounting
Single hole mounting
– 8 – IEC 61076-2-104:2014 © IEC 2014
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-104: Circular connectors –
Detail specification for circular connectors
with M8 screw-locking or snap-locking

1 Scope
This part of IEC 61076 describes circular connectors M8 screw-locking or with nominal
diameter 8 mm snap-locking, typically used for industrial process measurement and control.
These connectors consist of fixed and free connectors either rewireable or non-rewireable.
Male connectors have round contacts of diameter 0,6 mm, diameter 0,7 mm and diameter
1,0 mm.
Throughout this detail specification, dimensions are in mm.
NOTE M8 is the dimension of the thread of the screw-locking mechanism of these circular connectors.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60050 (all parts): International Electrotechnical Vocabulary (available at
http://www.electropedia.org)
IEC 60068-1:2013, Environmental testing - Part 1: General and guidance
IEC 60068-2-60, Environmental testing – Part 2: Tests – Test Ke: Flowing mixed gas
corrosion test
IEC 60352 (all parts), Solderless connections
IEC 60512 (all parts), Connectors for electronic equipment – Tests and measurements
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
Amendment 2:2013
Amendment 1:1999
IEC 60664-1:2007, Insulation coordination for equipment within low-voltage systems – Part 1:
Principles, requirements and tests
IEC 60998-2-1, Connecting devices for low-voltage circuits for household and similar
purposes – Part 2-1: Particular requirements for connecting devices as separate entities with
screw-type clamping units
IEC 60999 (all parts), Connecting devices – Electrical copper conductors – Safety
requirements for screw-type and screwless-type clamping units

IEC 61076-1:2006, Connectors for electronic equipment – Product requirements – Part 1:
Generic specification
IEC 61984, Connectors – Safety requirements and tests
ISO 1302, Geometrical Product Specification (GPS) – Indication of surface texture in technical
product documentation
3 Technical information
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581 apply.
3.2 Recommended method of termination
The contact terminations shall be of the following types: screw, crimp, insulation piercing,
insulation displacement, press-in or solder.
3.3 Number of contacts, ratings and characteristics
Table 1 – Connector ratings related to coding and number of contacts
Coding Contacts Rated voltage Rated current
A 3 50 V a.c./ 60 V d.c. 3 A
A 4 50 V a.c./ 60 V d.c. 3 A
A 6 30 V a.c./ 30 V d.c. 1,5 A
A 8 30 V a.c./ 30 V d.c. 1,5 A
B 5 30 V a.c./ 30 V d.c. 3 A
Insulation resistance: 10 Ω min.
Climatic category: see 5.1, Table 7
Contact spacing: see Clause 4, dimensions
3.4 Creepage and clearance distances
The permissible operating voltages, depends on the application and also on the safety
requirements.
The creepage and clearance distances in Table 2 are given as operating characteristics of
mated connectors and shall be measured according to IEC 60512-1-2. The minimum values
for clearance and creepage can be found in Table 2.
Table 2 – Creepage and clearance distances
Dimensions are in millimeter
Connector style Minimum distance between Minimum distance between
and number of contacts contacts and earth contact adjacent contacts
Creepage Clearance Creepage Clearance
0,6 0,6 0,6 0,6
A-coding 3+4 contacts
A-coding 6+8 contact
0,6 0,6 0,6 0,6
and B-coding
– 10 – IEC 61076-2-104:2014 © IEC 2014
Application information – The permissible rated voltage depends on the application or
specified safety requirements. Reductions in creepage or clearance distances may occur due
to the printed board or wiring used, and shall duly be taken into account.
3.5 Marking
The marking of the connector and the package shall be in accordance with 2.7 of
IEC 61076-1:2006.
3.6 Safety aspects
For safety aspects IEC 61984 shall be considered as guidance unless otherwise specified.
4 Dimensional information
4.1 General
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 connector dimensions, see drawings in 4.2.
Missing dimensions shall be chosen according to common characteristics and intended use.
4.2 Survey of styles and variants
4.2.1 General
For all connector styles with cables, the length L of the cable shall be agreed upon between
manufacturer and user.
For interface dimensions, see 4.3.
The interface dimensions of the female styles shall be chosen according to the common
characteristics of the male styles.
For reliable intermateability, the dimensions of the female connector body as detailed in
Annex A shall be met. Compliance is checked by inspection and measurement.
4.2.2 Fixed connectors
4.2.2.1 General
Table 3 – Styles of fixed connectors
Style Description
BM Tube insert, male contacts dip solder mounting, long version
CM Tube insert, male contacts dip solder mounting, short version
EM Fixed connector with wire ends, male contacts, single hole mounting
EF Fixed connector with wire ends, female contacts, single hole mounting

4.2.2.2 Style BM
Mounting hole in tube
15 max.
+0,015
∅5,7
9,5 max. 1)
Figure 1 – Tube insert, male contacts dip solder mounting, long version
4.2.2.3 Style CM
11 max. 2,5 max.
Mounting hole in tube
7 max.
+0,015
∅5,7
1)
Key
1) Length and diameter shall be agreed upon between the manufacturer and user.
Figure 2 – Tube insert, male contacts dip solder mounting, short version
4.2.2.4 Style EM
L = length of wire ends
18 max.
8,5 ± 0,5
3,2 max. Mounting hole
6 min.
+0,1
7,1
Fixing nut
Sealing
Figure 3 – Fixed connector with wire ends,
male contacts, single hole mounting
M8 × 0,5
∅ according to mounting hole
∅ according to mounting hole
∅8 max.
+0,1
∅8,2
– 12 – IEC 61076-2-104:2014 © IEC 2014
4.2.2.5 Style EF
L = length of wire ends
16,5 max.
Mounting hole
8,5 ± 0,5 3,2 max.
+0,1
7,1
Fixing nut
Sealing
Figure 4 – Fixed connector with wire ends,
female contacts, single hole mounting
4.2.3 Free connectors
4.2.3.1 General
Table 4 – Styles of free connectors
Style Description
a)
JM Rewireable connector, male contacts, straight version, with locking nut
a)
KM Rewireable connector, male contacts, right angled version, with locking nut
NM Non-rewireable connector, male contacts, straight version, snap-locking
a)
LM Non-rewireable connector, male contacts, straight version, with locking nut
a)
MM Non-rewireable connector, male contacts, right angled version, with locking nut
a)
JF Rewireable connector, female contacts, straight version, with locking nut
a)
KF Rewireable connector, female contacts, right angled version, with locking nut
NF Non-rewireable connector, female contacts, straight version, snap-locking
QF Non-rewireable connector, female contacts, right angled version, snap-locking
a)
LF Non-rewireable connector, female contacts, straight version, with locking nut
a)
MF Non-rewireable connector, female contacts, right angled version, with locking nut
a)
Knurled ring or hexagonal ring upon agreement.

M8 × 0,5
+0,1
∅8,2
4.2.3.2 Style JM
45 max.
1)
Key
1)
Cable outlet alternatively outside.
2)
Cable outlet diameter-range upon agreement.
Figure 5 – Rewireable connector, male contacts,
straight version, with locking nut
4.2.3.3 Style KM
1)
2)
Cable outlet
37 max. 7 max.
Key
1)
Cable outlet alternatively outside.
2)
Cable outlet diameter-range upon agreement.
Figure 6 – Rewireable connector, male contacts,
right angled version, with locking nut
∅14 max.
∅14 max.
20 max. 7 max.
2)
Cable outlet
– 14 – IEC 61076-2-104:2014 © IEC 2014
4.2.3.4 Style NM
37 max. L = length of cable
6 min.
Figure 7 – Non-rewireable connector, male contacts,
straight version, snap-locking
4.2.3.5 Style LM
41,5 max. L = length of cable
Figure 8 – Non-rewireable connector, male contacts,
straight version, with locking nut
4.2.3.6 Style MM
7,5 max.
24,5 max. L = length of cable
∅10,5 max.
Figure 9 – Non-rewireable connector, male contacts,
right angled version, with locking nut
∅10,5 max.
∅9,5 max.
20 max. 6,5 max.
4.2.3.7 Style JF
45 max.
1)
Sealing
Key
1)
Cable outlet alternatively outside.
2)
Cable outlet diameter range upon agreement.
Figure 10 – Rewireable connector, female contacts,
straight version, with locking nut
4.2.3.8 Style KF
Sealing
1)
2)
Cable outlet
37 max. 7 max.
Key
1)
Cable outlet alternatively outside.
2)
Cable outlet diameter range upon agreement.
Figure 11 – Rewireable connector, female contacts,
right angled version, with locking nut
4.2.3.9 Style NF
33 max. L = length of cable
Figure 12 – Non-rewireable connector, female contacts,
straight version, snap-locking
∅9,5 max.
∅14 max. ∅14 max.
7 max.
20 max.
2)
Cable outlet
– 16 – IEC 61076-2-104:2014 © IEC 2014
4.2.3.10 Style QF
7,5 max.
24,5 max. L = length of cable
∅9,5 max.
Figure 13 – Non-rewireable connector, female contacts,
right angled version, snap-locking
4.2.3.11 Style LF
L = length of cable
35 max.
Sealing
Figure 14 – Non-rewireable connector, female contacts,
straight version, with locking nut
4.2.3.12 Style MF
7,5 max.
L = length of cable
24,5 max.
Sealing
∅10,5 max.
Figure 15 – Non-rewireable connector, female contacts,
right angled version, with locking nut
13,5 max.
6,5 max.
∅10,5 max.
13,5 max. 6,5 max.
4.3 Interface dimensions
4.3.1 Pin front and side view A-coding
3,5
3-way
1 3
3×
Ø1 ±0,03
Ø0,1 A
2,15
2 4
4-way
1 3
4×
Ø1 ±0,03
Ø0,1 A
3,4
6×
Ø0,7 ±0,03
Ø0,1 A
6-way
5 3
1 2
1 -0,1
Ø3,8
3,7
2,9
8×
Ø0,6 ±0,03
Ø0,1 A
8-way 4
7 3
0,7 -0,1
1,8
Figure 16 – Pin front view A-coding
+0,1
2,2 0
+0,1
1,85
2,1 0
1,65
1,2
1,75
0,5
0,35
1,95
– 18 – IEC 61076-2-104:2014 © IEC 2014
+0,1
3 0
+0,1
2 0
1,75 -0,1
Sealing surface
0,5
-0,3
snap- and
srew-locking
4,7
-0,2
A
5 ±0,05
6 min.
3 max.
screw-locking
6 min.
+0,1
2 0
1,75
-0,1
0,5
-0,3
snap-locking
4 min.
coding
6- / 8-way
0,2  -0,2
Figure 17 – Pin side view A-coding
Ø6,5
-0,05
Ø6,5
-0,05
+0,1
Ø6,5
+0,02 Ø5,8
-0,05
Ø6,9 Ø6,92 max.
-0,03
+0,1
Ø6,5 0
M8 × 1
+0,02
Ø6,9 -0,03
M8 × 1
Male Female
4 4
3 way 1 3 3 1
2 4 4 2
4 way
1 3 3 1
6 way
5 5
6 6
4 4
3 3
8 way 7 7
2 2
1 1
8 8
Figure 18 – Contact position A-coding – Front view
The contact marking shall be on the termination side of the connector insert as long as the
size of the component allows the placement there.
4.3.2 Pin front view B-coding
∅5,8
−0,05
3,4
1,95
0°
30°
–1°
R0,2
R1
5×
∅1 ± 0,03
∅0,1 A
Figure 19 – Pin front view B-coding
1,35
1,45
0,35
+0,03
2,6
– 20 – IEC 61076-2-104:2014 © IEC 2014
Male Female
2 4 4 2
5 way
3 3
1 1
5 5
Figure 20 – Contact position – B-coding – Front view
The contact marking shall be on the termination side of the connector insert, as long as the
size of the component allows the placement there.
4.4 Engagement (mating) information
l l
Figure 21a – Engagement (mating) Figure 21b – Engagement (mating)
information – Housing variant 1 information – Housing variant 2
h
∅d
Figure 21c – Engagement (mating) information – Angled version
NOTE Arrows indicate mating direction.
Figure 21 – Engagement (mating) information
∅d
∅d1
l
a
∅d
∅d1
Table 5 – Connector dimensions in mated and locked position
Dimensions are in mm
Combination
a) a)
Figure a maximum d maximum H maximum I maximum
of styles
BM-JF --- --- 45
∅ 14
BM-NF --- ∅ 9,5 --- 38
BM-LF --- ∅ 10,5 --- 40
CM-JF --- --- 45
∅ 14
CM-NF --- --- 38
∅ 9,5
21a) CM-LF --- ∅ 10,5 --- 40
EM-JF --- --- 45
∅ 14
EM-NF --- --- 38
∅ 9,5
EM-LF --- ∅ 10,5 --- 40
EF-JM --- ∅ 14 --- 45
EF-LM --- --- 45
∅ 10,5
JM-JF --- ∅ 14 --- 75
JM-LF --- ∅ 14 --- 74
JF-NM --- --- 77
∅ 14
JF-LM --- ∅ 14 --- 74
21b)
NM-NF --- ∅ 9,5 --- 65
NM-LF --- ∅ 10,5 --- 67
NF-LF --- --- ---
∅ 10,5
LM-LF --- ∅ 10,5 --- 72
BM-KF 7 ∅ 14 48 27
BM-QF 7,5 --- 25 32
BM-MF 7,5 --- 25 32
CM-KF 7 ∅ 14 45 27
CM-QF 7,5 --- 25 32
21c) CM-MF 7,5 --- 25 32
EM-KF 7 48 27
∅ 14
EM-QF 7,5 --- 25 32
EM-MF 7,5 --- 25 32
EF-KM 7 ∅ 14 41 27
EF-MM 7,5 --- 31 32
a)
Dimensions in mated and locked position, additional space for insertion: 10 mm.

4.5 Gauges
4.5.1 Sizing gauges and retention force gauges
Material: tool steel, hardened
= Surface (clean and free of grease)
roughness according to ISO 1302: Ra = 0,25 µm maximum
0,15 µm minimum
– 22 – IEC 61076-2-104:2014 © IEC 2014

R
l
Figure 22 – Gauge dimensions
Table 6 – Gauges
Gauge Mass Application diameter a l min. Nom pin
diameter
g mm mm mm
P11 – Sizing 1,03 10
± 0,03
1,0
P12 20 Retention force 0,97 10
P31 – Sizing 0,63 10
± 0,03
0,6
P32 15 Retention force 0,57 10
P41 – Sizing 0,73 10
± 0,03
0,7
P42 20 Retention force 0,67 10

5 Characteristics
5.1 Climatic category
Conditions: IEC 60068-1
Table 7 – Climatic category
Category Damp heat
temperature steady state
Climatic
Relative Days
category Lower Upper Temperature
humidity
°C °C °C %
25/85/21 –25 40 93 21
+85
5.2 Electrical characteristics
5.2.1 Rated voltage – Rated impulse voltage – Pollution degree
Conditions: IEC 60664-1
The permissible rated voltage depends on the application or specified safety requirement.
Reductions in creepage or clearance distances may occur due to the printed board or wiring
used and shall be duly taken into account.
a
Table 8 – Rated voltage – Rated impulse voltage –
Voltage proof
Rated Rated Pollution
a)
Number of ways and coding voltage impulse degree
according to 4.3 voltage
V kV
3 50 V a.c./ 60 V d.c. 1,5 3
4 50 V a.c./ 60 V d.c. 1,5 3
6 30 V a.c./ 30 V d.c. 0,8 3
8 30 V a.c./ 30 V d.c. 0,8 3
5 30 V a.c./ 30 V d.c. 0,8 3
a)
Only in mated and locked condition.

5.2.2 Voltage proof
Conditions: IEC 60512, Test 4a
Standard atmospheric conditions
Mated connectors
Table 9 – Voltage proof
kV r.m.s.
Number of ways Between contacts Between contacts and metal-housing
and coding
Fixed connectors Free connectors Fixed connectors Free connectors
according to 4.3
3 1,0 1,0 0,85 0,85
4 1,0 1,0 0,85 0,85
6 0,65 0,65 0,65 0,65
8 0,65 0,65 0,65 0,65
5 0,65 0,65 0,65 0,65
5.2.3 Current-carrying capacity
Conditions: IEC 60512, Test 5b
All contacts
Values at 40 °C
3 way = 3 A
4 way = 3 A
5 way = 3 A
6 way = 1,5 A
8 way = 1,5 A
5.2.4 Contact resistance
Conditions: IEC 60512, Test 2a
Standard atmospheric conditions
Measuring points, see 6.1.2
5.2.5 Insulation resistance
Conditions: IEC 60512, Test 3a, Method A
Standard atmospheric conditions

– 24 – IEC 61076-2-104:2014 © IEC 2014
Test voltage 500 V ± 15 V d.c.
5.3 Mechanical characteristics
5.3.1 Mechanical operation
Conditions: IEC 60512, Test 9a
Standard atmospheric conditions
Maximum speed of operations = 10 mm/s
Rest: 30 s, unmated
Table 10 – Number of mechanical operations
Contact finish Mechanical operations
Gold 100
Silver 50
Tin 20
a)
Other types
a)
Other mating cycles are upon agreement between manufacturer and user.

5.3.2 Insertion and withdrawal forces
Conditions: IEC 60512, Test 13b
Standard atmospheric conditions
Maximum speed = 10 mm/s
Table 11 – Insertion and withdrawal forces
Number of poles Total insertion force Total withdrawal force
N N
3 to 8 23 maximum 23 maximum
5.3.3 Contact retention in insert
Not applicable.
For removable crimp type contacts, the introduction of an appropriate requirement is under
consideration.
5.3.4 Polarizing method
Conditions: IEC 60512, Test 13e
Standard atmospheric conditions
Insertion force: 35 N minimum
5.3.5 Vibration (sinusoidal)
Conditions: IEC 60512, Test 6d
Standard atmospheric conditions
Connectors in mated and locked position
The fixed and free connector shall be rigidly installed in a suitable fixture as
specified in 6.1.3.
Vibration severity: 10 Hz to 500 Hz and 0,35 mm or 50 m/s

5.4 Other characteristics
5.4.1 IP degree of protection
IP65/IP67 according to IEC 60529, connectors in mated and locked position. IP68 on
agreement between manufacturer and user.
6 Test schedule
6.1 General
6.1.1 Introductury remarks
This test schedule shows the tests and the order in which they shall be carried out as well as
the requirements to be met.
Unless otherwise specified, all tests shall be carried out under standard atmospheric
conditions for testing as specified in IEC 60068-1, as directed by the applicable part of
IEC 60512.
Unless otherwise specified, mated and locked sets of connectors shall be tested. Care shall
be taken to keep a particular combination of connectors together during the complete test
sequence, i.e. when unmating is necessary for a certain test, the same connector styles as
before shall be mated for the subsequent tests.
In the following, a mated and locked sets of connector styles is called a specimen.
When the initial tests P have been completed, the specimens are divided in the 4 test groups
AP, BP, CP and DP. In addition, 20 single contacts are used for EP.
Before testing commences, the connectors shall be stored for at least 24 h in the non-
engaged state under standard atmospheric conditions as per IEC 60068-1.
The necessary specimens are stated in Table 12.
Table 12 – Number of test specimens
Test group
P AP BP CP DP EP
Number of 20 single
12 3 3 3 3
specimens contacts
6.1.2 Arrangement for contact resistance measurements
Conditions: see 5.2.4
The measurement of contact resistance shall be carried out on the number of contact pairs
stated in the connector detail specification. Any subsequent measurements of contact
resistance shall be made on the same contacts.

– 26 – IEC 61076-2-104:2014 © IEC 2014

Measuring points
Cable Cable
Free connector Fixed connector

Figure 23 – Contact resistance arrangement
6.1.3 Arrangement for dynamic stress tests (vibration)
Conditions: see 5.3.5
Fixed connector
25 max. 25 max.
Free connector
Cable clamp
Cable clamp
Fixtu
...