IEC 61076-2-104:2008

IEC 61076-2-104
Edition 1.0 2008-05
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 1.0 2008-05
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
V
CODE PRIX
ICS 31.220.10 ISBN 2-8318-9670-3

– 2 – 61076-2-104 © IEC:2008
CONTENTS
FOREWORD.5
1 General information.8
1.1 Scope.8
1.2 Recommended method of termination .8
1.2.1 Number of contacts or contact cavities .8
1.3 Ratings and characteristics .8
1.4 Normative references .8
1.5 Marking .9
1.6 IEC Type designation .10
1.7 Ordering information.10
1.8 Safety aspects.11
2 Technical information .11
2.1 Terms and definitions .11
2.2 Survey of styles and variants.11
2.2.1 General .11
2.2.2 Fixed connectors .11
2.2.3 Free connectors .13
3 Dimensions .18
3.1 General .18
3.2 Interface dimensions .19
3.2.1 Pin front view A-coding.19
3.2.2 Pin front view B-Coding .20
3.3 Engagement (mating) information.21
3.4 Gauges .23
4 Characteristics .23
4.1 Climatic category.23
4.2 Electrical .23
4.2.1 Rated voltage – Rated impulse voltage – Pollution degree.23
4.2.2 Voltage proof.24
4.2.3 Current-carrying capacity.24
4.2.4 Contact resistance.24
4.2.5 Insulation resistance.24
4.3 Mechanical.24
4.3.1 IP degree of protection .24
4.3.2 Mechanical operation .25
4.3.3 Insertion and withdrawal forces .25
4.3.4 Contact retention in insert.25
4.3.5 Polarizing method.25
4.3.6 Vibration (sinusoidal).25
5 Test schedule.26
5.1 General .26
5.1.1 Arrangement for contact resistance measurements.26
5.1.2 Arrangement for dynamic stress tests (vibration) .28
5.2 Test schedule.29
5.2.1 Test group P – Preliminary .29
5.2.2 Test group AP – Dynamic/ Climatic.29

61076-2-104 © IEC:2008 – 3 –
5.2.3 Test group BP – Mechanical endurance.32
5.2.4 Test group CP – Electrical load .33
5.2.5 Test group DP – Chemical resistivity .34
5.2.6 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.12
Figure 3 – Fixed connector with wire ends, male contacts, single hole mounting.12
Figure 4 – Fixed connector with wire ends, female contacts, single hole mounting.13
Figure 5 – Rewireable connector, male contacts, straight version, with locking nut .14
Figure 6 – Rewireable connector, male contacts, right angled version, with locking nut .14
Figure 7 – Non-rewireable connector, male contacts, straight version, snap locking.15
Figure 8 – Non-rewireable connector, male contacts, straight version, with locking nut .15
Figure 9 – Non-rewireable connector, male contacts, angled version, with locking nut .15
Figure 10 – Rewireable connector, female contacts, straight version, with locking nut .16
Figure 11 – Rewireable connector, female contacts, right angled version, with locking nut.16
Figure 12 – Non-rewireable connector, female contacts, straight version, snap locking.16
Figure 13 – Non-rewireable connector, female contacts, angled version, snap locking .17
Figure 14 – Non-rewireable connector, female contacts, straight version, with locking nut .17
Figure 15 – Non-rewireable connector, female contacts, angled version with locking nut .17
Figure 16 – Pin front view A-coding .19
Figure 17 – Contact position A-Coding front view.20
Figure 18 – Pin front view B-Coding.20
Figure 19 – Contact position – B-Coding - front view.20
Figure 20 – Engagement (mating) information.21
Figure 21 – Gauge dimensions .23
Figure 22 – Contact resistance arrangement.27
Figure 23 – Dynamic stress test arrangement .28
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 – Styles of fixed connectors .11
Table 2 – Styles of free connectors.13
Table 3 – Connectors dimensions in mated and locked position.22
Table 4 – Gauges .23
Table 5 – Climatic category .23
Table 6 – Rated voltage – Rated impulse voltage – Pollution degree .24
Table 7 – Voltage proof.24
Table 8 – Number of mechanical operations .25
Table 9 – Insertion and withdrawal forces .25
Table 10 – Number of test specimens .26
Table 11 – Test group P .29
Table 12 – Test group AP .29

– 4 – 61076-2-104 © IEC:2008
Table 13 – Test group BP .32
Table 14 – Test group CP .33
Table 15 – Test group DP .34
Table 16 – Test group EP .34

61076-2-104 © IEC:2008 – 5 –
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
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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.
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 part of IEC 61076-2 cancels and replaces the following parts of IEC 61076-2-101:2003
(first edition of IEC 61076-2-101):
• subclauses 2.2.3, 2.2.4 and 3.2.2,
• Tables 6, 10 and 12,
• any reference to connector type E and M8.

– 6 – 61076-2-104 © IEC:2008
The text of this standard is based on the following documents:
CDV Report on voting
48B/1753/CDV 48B/1815/RVC
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.
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 committee has decided that the contents of this publication will remain unchanged until
the maintenance result 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.
61076-2-104 © IEC:2008 – 7 –
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-104: Circular connectors – Detail specification for circular
connectors with M8 screw-locking or snap-locking

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/ ∅ 8 mm 3 to 5 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 – 61076-2-104 © IEC:2008
1 General information
Throughout this detail specification, dimensions are in mm.
1.1 Scope
This detail specification describes circular connectors M8 screw-locking or with nominal
∅ 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 ∅ 1,0 mm.
NOTE M8 is the dimension of the thread of the screw locking mechanism of these circular connectors.
1.2 Recommended method of termination
The contact terminations shall be of the following types: screw, crimp, insulation piercing,
insulation displacement, press-in or solder.
1.2.1 Number of contacts or contact cavities
A-coding 3 and 4 contacts
B-coding 5 contacts
1.3 Ratings and characteristics
Rated voltage A-coding 3 contacts 60 V d.c. or a.c.
4 contacts 30 V d.c. or a.c.
B-coding 5 contacts  30 V d.c. or a.c.
Current rating A-coding 3 and 4 contacts 3 A
B-coding 5 contacts 3 A
Insulation resistance : 10 Ω min.
Climatic category : see 4.1 Table 5
Contact spacing : see Clause 3, dimensions
1.4 Normative references
The following referenced documents are indispensable for the application 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 60068-1:1988, Environmental testing – Part 1: General and guidance
Amendment 1 (1992)
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 60512-1-100, Connectors for electronic equipment – Tests and measurements –
Part 1-100: General – Applicable publications

61076-2-104 © IEC:2008 – 9 –
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
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 61076-2-001:2001, Connectors for electronic equipment – Part 2-001: Circular connectors
– Blank detail specification
IEC 61984, Connectors – Safety requirements and tests
ISO 1302, Geometrical Product Specification (GPS) – Indication of surface texture in technical
product documentation
1.5 Marking
The marking of the connector and the package shall be in accordance with 2.7 of
IEC 61076-1:2006.
– 10 – 61076-2-104 © IEC:2008
1.6 IEC Type designation
IEC 61076-2-104
L LNNN L LN L
Letter denoting coding
Reference to this specification

devices jacket
Standard types A
Type 5 contacts B
Letter denoting the connector
style
see Tables 1 and 2 Number denoting contact

finish
Gold 1
Silver 2
Tin 3
Other types 4
Number of contacts Letter denoting style of

termination
without PE contact 003
004 Screw A
005 Crimp C
Insulation displacement I
Insulation piercing P
Press-in R
Solder contact S
Letter denoting style of locking nut

or snap-locking
Knurled ring G
Hexagonal ring H
Snap locking S
NOTE “L” stands for letter, “N” stands for number
1.7 Ordering information
For ordering connectors to this detail specification, the type designation described in 1.6 shall
be used.
Example 1: NM004-SS1-A
Free connector, non-rewireable, straight version with snap locking, 4 male contacts, solder
contacts, contact area gold plated. A-coding.
Example 2: KF005-SP3-B
Free connector, rewireable, right angled version, 5 female piercing contacts, contact area tin
plated. B-coding.
61076-2-104 © IEC:2008 – 11 –
1.8 Safety aspects
For safety aspects IEC 61984 shall be considered unless otherwise specified.
2 Technical information
Dimensions in mm.
2.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050(581) apply.
2.2 Survey of styles and variants
2.2.1 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 3.2.
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 have to be met.
2.2.2 Fixed connectors
2.2.2.1 General
Table 1 – 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
2.2.2.2 Style BM
Mounting hole in tube
15 max.
+0,015
∅5,7
9,5 max. 1)
IEC  425/08
Figure 1 – Tube insert, male contacts dip solder mounting, long version
∅ according to mounting hole
∅8 max.
– 12 – 61076-2-104 © IEC:2008
2.2.2.3 Style CM
11 max. 2,5 max.
Mounting hole in tube
7 max.
+0,015
∅5,7
1)
IEC  426/08
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
2.2.2.4 Style EM
L = length of wire ends
18 max.
8,5 ± 0,5
3,2 max. Mounting hole
6 min.
+0,1
10 7,1
Fixing nut
IEC  427/08
Sealing
Figure 3 – Fixed connector with wire ends, male contacts, single hole mounting

M8 × 0,5
∅ according to mounting hole
+0,1
∅8,2
61076-2-104 © IEC:2008 – 13 –
2.2.2.5 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
IEC  428/08
Figure 4 – Fixed connector with wire ends, female contacts, single hole mounting
2.2.3 Free connectors
2.2.3.1 General
Table 2 – 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
– 14 – 61076-2-104 © IEC:2008
2.2.3.2 Style JM
45 max.
1)
IEC  429/08
Key
1) Cable outlet alternatively outside.
2) Cable outlet diameter-range upon agreement.
Figure 5 – Rewireable connector, male contacts, straight version, with locking nut
2.2.3.3 Style KM
1)
2)
Cable outlet
7 max.
37 max.
IEC  430/08
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
61076-2-104 © IEC:2008 – 15 –
2.2.3.4 Style NM
37 max. L = length of cable
6 min.
IEC  431/08
Figure 7 – Non-rewireable connector, male contacts, straight version, snap locking
2.2.3.5 Style LM
41,5 max. L = length of cable
IEC  432/08
Figure 8 – Non-rewireable connector, male contacts, straight version, with locking nut
2.2.3.6 Style MM
7,5 max.
24,5 max. L = length of cable
∅10,5 max.
IEC  433/08
Figure 9 – Non-rewireable connector, male contacts,
right angled version, with locking nut
∅10,5 max.
∅9,5 max.
20 max. 6,5 max.
– 16 – 61076-2-104 © IEC:2008
2.2.3.7 Style JF
45 max.
1)
Sealing
IEC  2361/03
Key
1) Cable outlet alternatively outside.
2) Cable outlet diameter range upon agreement.
Figure 10 – Rewireable connector, female contacts, straight version, with locking nut
2.2.3.8 Style KF
Sealing
1)
2)
Cable outlet
7 max.
37 max.
IEC  2363/03
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
2.2.3.9 Style NF
33 max. L = length of cable
IEC  434/08
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
61076-2-104 © IEC:2008 – 17 –
2.2.3.10 Style QF
7,5 max.
24,5 max. L = length of cable
∅9,5 max.
IEC  435/08
Figure 13 – Non-rewireable connector, female contacts,
right angled version, snap locking
2.2.3.11 Style LF
35 max. L = length of cable
Sealing
IEC  2368/03
Figure 14 – Non-rewireable connector, female contacts,
straight version, with locking nut
2.2.3.12 Style MF
7,5 max.
L = length of cable
24,5 max.
Sealing
∅10,5 max.
IEC  2370/03
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.
– 18 – 61076-2-104 © IEC:2008
3 Dimensions
3.1 General
All original dimensions are in millimeters. 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 2.2.
Missing dimensions shall be chosen according to common characteristics and intended use.

61076-2-104 © IEC:2008 – 19 –
3.2 Interface dimensions
3.2.1 Pin front view A-coding
M8 × 1
+0,02
Sealing surface
∅6,9
−0,03
+0,1
∅6,5
∅5,8
–0,05
A
R0,2
–0,1
∅6,5
–0,05
3,5
3 way
3×
∅1 ± 0,03
∅0,1 A
2,15
2 4
4 way
4×
∅1 ± 0,03
A
∅0,1
3,4
IEC  436/08
Figure 16 – Pin front view A-coding
+0,1
+0,1
1,75
−0,1
0,5
−0,3
0,5
4,7
17,5
−0,2
19,5
5 ± 0,05
6 min.
– 20 – 61076-2-104 © IEC:2008
Male Female
4 4
3 way 1 3 3 1
2 4 4 2
4 way
1 3 3 1
IEC  437/08
Figure 17 – 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.
3.2.2 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
IEC  438/08
Figure 18 – Pin front view B – Coding
Male Female
2 4 4 2
5 way
1 3 3 1
5 5
IEC  439/08
Figure 19 – 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.
1,35
1,45
0,35
+0,03
2,6
61076-2-104 © IEC:2008 – 21 –
3.3 Engagement (mating) information

l l
IEC  2376/03
IEC  2375/03
Figure 20a – Engagement (mating) information – Figure 20b – Engagement (mating) information –
Housing variant 1 Housing variant 2
h
∅d
IEC  2377/03
Figure 20c – Engagement (mating) information – Angled version
NOTE Arrows indicate mating direction.
Figure 20 – Engagement (mating) information

∅d
∅d1
l
a
∅d
∅d1
– 22 – 61076-2-104 © IEC:2008
Table 3 – Connector dimensions in mated and locked position
a) a)
Figure Combination of styles a maximum d maximum h maximum I maximum
BM-JF --- ∅ 14 --- 45
BM-NF --- ∅ 9,5 --- 38
BM-LF --- ∅ 10,5 --- 40
CM-JF --- --- 45
∅ 14
CM-NF --- ∅ 9,5 --- 38
20a)
CM-LF --- ∅ 10,5 --- 40
EM-JF --- --- 45
∅ 14
EM-NF --- ∅ 9,5 --- 38
EM-LF --- ∅ 10,5 --- 40
EF-JM --- --- 45
∅ 14
EF-LM --- ∅ 10,5 --- 45
JM-JF --- ∅ 14 --- 75
JM-LF --- ∅ 14 --- 74
JF-NM --- ∅ 14 --- 77
JF-LM --- ∅ 14 --- 74
20b)
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
20c)
CM-MF 7,5 --- 25 32
EM-KF 7 ∅ 14 48 27
EM-QF 7,5 --- 25 32
EM-MF 7,5 --- 25 32
EF-KM 7 ∅ 14 41 27
EF-MM 7,5 --- 31 32
All dimensions are in mm.
See Figure 20.
a)
Dimensions in mated and locked position, additional space for insertion: 10 mm.

61076-2-104 © IEC:2008 – 23 –
3.4 Gauges
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
R
l
IEC  2378/03
Figure 21 – Gauge dimensions
Table 4 – Gauges
Mass ∅ a l min. Nom pin
Gauge Application
g mm mm ∅
P11 - Sizing 1,03 10
± 0,03
1,0
P12 20 Retention 0,97 10
force
4 Characteristics
4.1 Climatic category
Conditions: IEC 60068-1
Table 5 – Climatic category
Category temperature Damp heat steady state
Climatic
Relative
Days
Lower Upper Temperature
category
humidity
°C °C °C
%
25/85/21 –25 +85 40 93 21
4.2 Electrical
4.2.1 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
– 24 – 61076-2-104 © IEC:2008
Table 6 – Rated voltage – Rated impulse voltage –
Pollution degree
Number of ways and Rated Rated impulse Pollution
a)
coding according to voltage voltage degree
3.2.1 and 3.2.2 V kV
3 60 1,5 3
4 30 0,8 3
5 30 0,8 3
a)
Only in mated and locked condition.

4.2.2 Voltage proof
Conditions: IEC 60512, Test 4a
Standard atmospheric conditions
Mated connectors
Table 7 – Voltage proof
Unit: kV
Between contacts
Number of ways and
Between contacts and metal-housing
r.m.s. withstand voltage
coding according to
3.2.1 to 3.2.2
Fixed connectors Free connectors Fixed connectors Free connectors
3 1,0 1,0 0,85 0,85
4 0,65 0,65 0,65 0,65
5 0,65 0,65 0,65 0,65
4.2.3 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
4.2.4 Contact resistance
Conditions: IEC 60512, Test 2a
Standard atmospheric conditions
connecting points, see 5.1.1
4.2.5 Insulation resistance
Conditions: IEC 60512, Test 3a, Method A
Standard atmospheric conditions
Test voltage 500 V ± 15 V d.c.
4.3 Mechanical
4.3.1 IP degree of protection
IP65/IP67 according to IEC 60529, connectors in mated and locked position.
IP68 on agreement between manufacturer and user.

61076-2-104 © IEC:2008 – 25 –
4.3.2 Mechanical operation
Conditions: IEC 60512, Test 9a
Standard atmospheric conditions
Maximum speed of operations = 10 mm/s
Rest: 30 s, unmated
Table 8 – Number of mechanical operations
Contact finish Mechanical operations
Gold 100
Silver 50
Tin 20
Other types a)
a) Other mating cycles are upon agreement between manufacturer and user.

4.3.3 Insertion and withdrawal forces
Conditions: IEC 60512, Test 13b
Standard atmospheric conditions
Maximum speed = 10 mm/s
Table 9 – Insertion and withdrawal forces
Unit: N
Total insertion force Total withdrawal force
23 maximum 23 maximum
4.3.4 Contact retention in insert
Not applicable.
For removable crimp type contacts, the introduction of an appropriate requirement is under
consideration.
4.3.5 Polarizing method
Conditions: IEC 60512, Test 13e
Insertion force: 35 N minimum
4.3.6 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 5.1.2.
Vibration severity: 10 Hz to 500 Hz and 0,35 mm or 50 m/s

– 26 – 61076-2-104 © IEC:2008
5 Test schedule
5.1 General
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 hours in the non-
engaged state under standard atmospheric conditions as per IEC 60068-1.
The necessary specimens are stated in Table 10.
Table 10 – Number of test specimens
Test group
P AP BP CP DP EP
Number of 12 3 3 3 3 20 single
specimens contacts
5.1.1 Arrangement for contact resistance measurements
Conditions: see 4.2.4
The measurement of contact resistance shall be carried out on the number of contacts
specified. Any subsequent measurements of contact resistance shall be made on the same
contacts.
61076-2-104 © IEC:2008 – 27 –
Connection points
40 40
Cable Cable
Free connector Fixed connector
IEC  2379/03
Figure 22 – Contact resistance arrangement

– 28 – 61076-2-104 © IEC:2008
5.1.2 Arrangement for dynamic stress tests (vibration)
Conditions: see 4.3.6
Fixed connector
25 max. 25 max.
Free connector
Cable clamp
Cable clamp
Fixture Mounting panel
IEC  2380/03
Fixed connector
25 max.
Free connector
Cable clamp
Cable clamp
Mounting panel
Fixture
IEC  2381/03
Connector clamp
25 max. 25 max.
Free male connector
Free female connector
Cable clamp Cable clamp
Fixture IEC  440/08
Figure 23 – Dynamic stress test arrangement
25 max.
61076-2-104 © IEC:2008 – 29 –
5.2 Test schedule
5.2.1 Test group P – Preliminary
All specimens shall be subject to the following tests.
Table 11 – Test group P
Test Test Measurement to be Requirements
phase performed
Title IEC 60512 Severity or Title IEC 60512 All connector styles
Test No. condition of test Test No.
P1 General 1 Unmated Visual 1a There shall be no defect
examination connectors examination that would impair
normal operation
Dimensional 1b The dimensions shall
examination comply with those
specified in 2.2 and 3
P2 Polarizing 13e See 4.3.5  It shall be possible to
method correctly align and mate
the appropriate mating
connectors.
It shall not be possible
to mate the connectors
in any other than the
correct manner
P3  Connection points Contact 2a initial value
according to 5.1.1 all resistance –
10 mΩ maximum
contacts Millivolt
level
method
P4  Test voltage Insulation 3a
10 Ω min.
500 V ± 15 V d.c. resistance
Method A
P5  Contact/ Voltage 4a According to 4.2.2
contact same proof
measuring points as for
P4
The specimen shall be divided into five groups. All connectors in each group shall undergo
the tests specified for the relevant group.
5.2.2 Test group AP – Dynamic/ Climatic
Table 12 – Test group AP
Test Test Measurement to be Requirements
phase performed
Title IEC 60512 Severity or Title IEC 60512 All connector styles
Test No. condition of test Test No.
AP1  See 4.3.3 Insertion 13b Requirements see 4.3.3
and
withdrawal
forces
AP2 Gauge Female contacts only 3 Engaging 16e See 3.4
retention contacts/ and
force specimen separating
Sizing and retention forces
force gauge, see 3.4
– 30 – 61076-2-104 © IEC:2008
Table 12 (continued)
Test Test Measurement to be Requirements
phase performed
Title IEC 60512 Severity or Title IEC 60512 All connector styles
Test No. condition of test Test No.
AP3 Vibration 6d 10 Hz to 500 Hz Contact 2e Duration of disturbance
0,35 mm or 50 mm/s² disturbance 1 μs maximum
Sweep cycles: 10
Full duration: 6 h
Contact 2a Rise in relation to initial
resistance –
values 15 mΩ maximum
Millivolt
level
method
Visual 1a There shall be no
examination defect that would impair
normal operation
AP4 Shock 6c Arrangement according Contact 2e Duration of disturbance
to 5.1.2 disturbance 1 μs maximum
Half sine
shock acceleration
490 m/s² (50 g)
Duration of impact:
11 ms
Contact 2a Rise in relation to initial
resistance –
values 15 mΩ maximum
Millivolt
level
method
Visual 1a There shall be no
examination defec
...