IEC PAS 61076-2-114:2016

IEC PAS 61076-2-114 ®
Edition 1.0 2016-05
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Connectors for electronic equipment – Product requirements –
Part 2-114: Circular connectors – Detail specification for data and power
connectors with M8 screw-locking

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IEC PAS 61076-2-114 ®
Edition 1.0 2016-05
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
Connectors for electronic equipment – Product requirements –

Part 2-114: Circular connectors – Detail specification for data and power

connectors with M8 screw-locking

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.220.10 ISBN 978-2-8322-3365-8

– 2 – IEC PAS 61076-2-114:2016  IEC 2016
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references. 8
3 Terms and definitions . 9
4 Technical information . 9
4.1 Systems of levels . 9
4.1.1 Performance levels . 9
4.1.2 Compatibility levels, according to IEC 61076-1:2006 . 9
4.2 Classification into climatic categories (Table 1) . 10
4.3 Creepage and clearance distances . 10
4.4 Current-carrying capacity . 10
4.5 Marking . 10
5 Dimensional information . 10
5.1 General . 10
5.2 Isometric view and common features . 10
5.2.1 General . 10
5.2.2 Common features . 10
5.2.3 Reference system . 10
5.3 Engagement (mating) information . 10
5.3.1 Engaging (mating) direction . 10
5.3.2 Contact levels and sequencing . 11
5.3.3 Perpendicular to the engaging (mating) direction . 11
5.3.4 Inclination . 11
5.4 Fixed connectors . 11
5.4.1 Dimensions . 11
5.4.2 Terminations . 14
5.5 Free connectors . 14
5.5.1 Dimensions . 14
5.6 Accessories . 20
5.7 Mounting information for connectors . 21
5.7.1 Mounting on panels . 21
5.8 Gauges . 21
5.8.1 Sizing gauges and retention force gauges . 21
5.8.2 Mechanical function, engaging/separating/insertion/withdrawal force
gauges . 21
5.8.3 Probes . 21
5.8.4 Contact resistance gauge . 21
5.8.5 Test panel (for voltage proof test) . 21
5.8.6 Test panel (for EMC/ crosstalk, etc.) . 22
6 Characteristics . 22
6.1 General . 22
6.2 Pin assignment and other definitions . 22
6.3 Classification into climatic categories . 22
6.4 Electrical characteristics . 22
6.4.1 Creepage and clearance distances . 22

6.4.2 Voltage proof . 22
6.4.3 Current-carrying capacity . 23
6.4.4 Contact and shield resistance . 23
6.4.5 Insulation resistance . 23
6.4.6 Impedance . 23
6.5 Mechanical characteristics . 23
6.5.1 Mechanical operation . 23
6.5.2 Effectiveness of connector coupling device . 23
6.5.3 Engaging and separating forces (or insertion and withdrawal forces) . 24
6.5.4 Contact retention in insert . 24
6.5.5 Polarization and coding method . 24
6.6 Other characteristics . 24
6.6.1 Shock and vibration (method either random or sine) . 24
6.6.2 Degree of protection provided by enclosures (IP code) . 26
6.6.3 Screen and shielding properties . 26
6.7 Environmental aspects . 26
6.7.1 Marking of insulation material (plastics) . 26
6.7.2 Design/ use of material . 26
7 Test schedule . 26
7.1 General . 26
7.2 Climatic category . 27
7.3 Creepage and clearance distances . 27
7.4 Arrangement for contact resistance measurement . 28
7.5 Arrangement for dynamic stress tests . 28
7.6 Arrangement for testing static load, axial . 29
7.7 Wiring of specimens . 30
7.8 Test schedules . 30
7.8.1 Basic (minimum) test schedule . 30
7.8.2 Full test schedule . 30
7.9 Test procedures and measuring methods . 41
7.10 Pre-conditioning . 41
7.11 Wiring and mounting of specimens . 42
7.11.1 Wiring . 42
7.11.2 Mounting . 42
Annex A (informative) Contact and pair designation for balanced cabling . 43
A.1 Recommendation for cable connection . 43

Figure 1 – Engagement (mating) information . 11
Figure 2 – Tube insert, male contacts dip solder mounting, long version . 12
Figure 3 – Tube insert, male contacts dip solder mounting, short version . 13
Figure 4 – Fixed connector with wire ends, style EM . 13
Figure 5 – Fixed connector with wire ends, style EF. 14
Figure 6 – Rewireable connector, male contacts, straight version, with locking nut . 15
Figure 7 – Rewireable connector, male contacts, right angled version, with locking nut . 15
Figure 8 – Non-rewireable connector, male contacts, straight version, with locking nut . 16
Figure 9 – Non-rewireable connector, male contacts, right angled version, with locking nut . 16
Figure 10 – Rewireable connector, female contacts, straight version, with locking nut . 17

– 4 – IEC PAS 61076-2-114:2016  IEC 2016
Figure 11 – Rewireable connector, female contacts, right angled version, with locking nut . 17
Figure 12 – Non-rewireable connector, female contacts, straight version, with locking nut . 18
Figure 13 – Non-rewireable connector, female contacts, right angled version, with locking
nut . 18
Figure 14 – Fixed connector . 19
Figure 15 – Free connector . 20
Figure 16 – Gauge dimensions . 21
Figure 17 – Dynamic stress test arrangement . 25
Figure 18 – Contact resistance arrangement . 28
Figure 19 – Dynamic stress test arrangement . 29
Figure A.1 – Example of contact arrangement for balanced cabling (informative) . 43

Table 1 – Climatic category . 10
Table 2 – Styles of fixed connectors . 12
Table 3 – Styles of free connectors . 14
Table 4 – Dimensions of fixed connector . 19
Table 5 – Dimensions of free connector . 20
Table 6 – Gauges . 21
Table 7 – Ratings of connectors . 22
Table 8 – Performance levels . 22
Table 9 – Current-carrying capacity . 23
Table 10 – Number of mechanical operations . 23
Table 11 – Insertion and withdrawal forces . 24
Table 12 – Insertion force . 24
Table 13 – Number of test specimens . 27
Table 14 – Performance levels . 27
Table 15 – Rated voltage – Rated impulse voltage – Pollution degree . 27
Table 16 – Voltage proof . 27
Table 17 – Number of test specimens and contacts . 30
Table 18 – Test group P . 31
Table 19 – Test group AP . 32
Table 20 – Test group BP . 35
Table 21 – Test group CP . 37
Table 22 – Test group DP . 38
Table 23 – Test group GP . 38
Table 24 – Test group MP . 40
Table A.1 – Example of contact and pair designation for balanced cabling (informative) . 43

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-114: Circular connectors –
Detail specification for data and power connectors with M8 screw-locking

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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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.
A PAS is a technical specification not fulfilling the requirements for a standard, but made
available to the public.
– 6 – IEC PAS 61076-2-114:2016  IEC 2016
IEC PAS 61076-2-114 has been processed by subcommittee 48B: Electrical connectors, of
IEC technical committee 48: Electrical connectors and mechanical structures for electrical and
electronic equipment.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
48B/2459/PAS 48B/2476/RVC
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.
This PAS shall remain valid for an initial maximum period of 3 years starting from the
publication date. The validity may be extended for a single period up to a maximum of 3 years,
at the end of which it shall be published as another type of normative document, or shall be
withdrawn.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
IEC SC 48B – Connectors IEC 61076-2-114

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 for data and power
applications with screw-
locking and 4 ways
Male and female connectors
Male and female contacts
Rewireable – Non-rewireable
Free cable connectors
Straight and right angle
connectors
Fixed connectors
Flange mounting
Single hole mounting
– 8 – IEC PAS 61076-2-114:2016  IEC 2016
CONNECTORS FOR ELECTRONIC EQUIPMENT –
PRODUCT REQUIREMENTS –
Part 2-114: Circular connectors –
Detail specification for data and power connectors with M8 screw-locking

1 Scope
This part of IEC 61076 describes circular connectors with M8 screw-locking typically used for
data transmissions in industrial applications. These connectors consist of fixed and free
connectors either rewireable or non-rewireable, with M8 screw-locking. Male connectors have
round contacts ∅0,8 mm.
The coding provided by this PAS prevents the mating of accordingly coded male or female
connectors to any other similarly sized interfaces covered by other standards.
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 60050-581, International Electrotechnical Vocabulary – Part 581: Electromechanical
components for electronic equipment
IEC 60068-1, Environmental testing – Part 1: General and guidance
IEC 60068-2-60, Environmental testing – Part 2-60: Tests – Test Ke: Flowing mixed gas
corrosion test
IEC 60352 (all parts), Solderless connectors
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
IEC 60512-29-100, Connectors for electronic equipment – Tests and measurements – Part
29-100: Signal integrity tests up to 500 MHz on M12 style connectors – Tests 29a to 29g
IEC 60529:1989, Degrees of protection provided by enclosures (IP code)
IEC 60603-7:2008, Connectors for electronic equipment – Part 7: Detail specification for 8-
way, unshielded, free and fixed connectors
IEC 60603-7-1, Connectors for electronic equipment – Part 7-1: Detail specification for 8-way,
shielded, free and fixed connectors

IEC 60664-1, 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 62197-1, Connectors for electronic equipment – Quality assessment requirements –
Part 1: Generic specification
IEC 62430, Environmentally conscious design for electrical and electronic products
IEC GUIDE 109, Environmental aspects – Inclusion in electrotechnical product standards
ISO 1302, Geometrical product specifications (GPS) – Indication of surface texture in
technical product documentation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-581 as well
as the following apply.
3.1
mounting orientation
circular mounting position of the connector in relation to the polarization of the mating
interface
Note 1 to entry: Where the free connector has an angled cable entry (as opposed to a straight cable entry), the
angle between the cable entry direction and the polarization keyway should be specified.
4 Technical information
4.1 Systems of levels
4.1.1 Performance levels
Not applicable.
4.1.2 Compatibility levels, according to IEC 61076-1:2006
D-coding 4 contacts
– 10 – IEC PAS 61076-2-114:2016  IEC 2016
4.2 Classification into climatic categories (Table 1)
Table 1 – Climatic category
Climatic Category temperature Damp heat steady state Days
category
Lower Upper Temperature Rel. humidity
°C °C °C %
25/85/21 –25 40 93 21
+85
4.3 Creepage and clearance distances
See 7.3.
4.4 Current-carrying capacity
Conditions: IEC 60512, test 5b
All contacts
Values at 40 °C
D-coding = 2 A
4.5 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
Throughout this PAS, dimensions are in mm. 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.
Missing dimensions shall be chosen according to common characteristics and intended use.
5.2 Isometric view and common features
5.2.1 General
For all connector styles with cables, the length L of the cable shall be agreed between
manufacturer and user. For interface dimensions see 5.3.
5.2.2 Common features
Not applicable.
5.2.3 Reference system
Not applicable.
5.3 Engagement (mating) information
5.3.1 Engaging (mating) direction
Arrows in Figure 1 indicates the mating direction.

Housing variant 1 Housing variant 2

Figure 1 – Engagement (mating) information
5.3.2 Contact levels and sequencing
The contact and disconnection sequence during the connection process is not defined.
5.3.3 Perpendicular to the engaging (mating) direction
The maximum allowable displacement in each perpendicular direction is 0,1 mm.
5.3.4 Inclination
The maximum allowable inclination in the longitudinal and transverse axes is 5° in the positive
and negative direction.
5.4 Fixed connectors
5.4.1 Dimensions
5.4.1.1 General
Table 2 shows styles of fixed connectors.

– 12 – IEC PAS 61076-2-114:2016  IEC 2016
Table 2 – 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

5.4.1.2 Style BM
Figure 2 shows style BM.
Figure 2 – Tube insert, male contacts dip solder mounting, long version

5.4.1.3 Style CM
Figure 3 shows style CM.
Figure 3 – Tube insert, male contacts dip solder mounting, short version
5.4.1.4 Style EM
Figure 4 shows style EM.
Figure 4 – Fixed connector with wire ends, style EM

– 14 – IEC PAS 61076-2-114:2016  IEC 2016
5.4.1.5 Style EF
Figure 5 shows style EF.
Figure 5 – Fixed connector with wire ends, style EF
5.4.2 Terminations
The contact terminations shall be of the following types: screw, crimp, piercing, insulation
displacement, press-in or solder.
Solderless terminations shall be in accordance with the relevant standard from the IEC 60352
series.
Screw type terminations shall be in accordance with the IEC 60999 series.
5.5 Free connectors
5.5.1 Dimensions
5.5.1.1 General
Table 3 shows styles of free connectors.
Table 3 – 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
a
LM Non-rewire
...