Connectors for electrical and electronic equipment - Product requirements - Part 2: Sectional specification for circular connectors

IEC 61076-2:2025 establishes uniform specifications and technical information for circular connectors.

Steckverbinder für elektronische Einrichtungen - Produktanforderungen - Teil 2: Rahmenspezifikation für Rundsteckverbinder

Connecteurs pour équipements électriques et électroniques - Exigences de produit - Partie 2: Spécification intermédiaire pour les connecteurs circulaires

l’IEC 61076-2:2025 établit des spécifications et des informations techniques uniformes pour les connecteurs circulaires.

Konektorji za elektronsko opremo - Zahteve za izdelek - 2. del: Področna specifikacija za okrogle konektorje

General Information

Status
Not Published
Publication Date
15-Jan-2026
Technical Committee
Drafting Committee
Current Stage
5060 - Voting results sent to TC, SR - Formal Approval
Start Date
29-Aug-2025
Completion Date
29-Aug-2025

Relations

Draft
prEN IEC 61076-2:2024
English language
28 pages
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Standards Content (Sample)


SLOVENSKI STANDARD
oSIST prEN IEC 61076-2:2024
01-december-2024
Konektorji za elektronsko opremo - Zahteve za izdelek - 2. del: Področna
specifikacija za okrogle konektorje
Connectors for electronic equipment - Product requirements - Part 2: Sectional
specification for circular connectors
Steckverbinder für elektronische Einrichtungen - Produktanforderungen - Teil 2:
Rahmenspezifikation für Rundsteckverbinder
Connecteurs pour équipements électroniques - Exigences de produit - Partie 2:
Spécification intermédiaire pour les connecteurs circulaires
Ta slovenski standard je istoveten z: prEN IEC 61076-2:2024
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
oSIST prEN IEC 61076-2:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61076-2:2024
oSIST prEN IEC 61076-2:2024
48B/3119/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61076-2 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-10-11 2025-01-03
SUPERSEDES DOCUMENTS:
48B/3103/CD, 48B/3116/CC
IEC SC 48B : ELECTRICAL CONNECTORS
SECRETARIAT: SECRETARY:
United States of America Mr Jeffrey Toran
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the
final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Connectors for electronic equipment - Product requirements - Part 2: Sectional specification for
circular connectors
PROPOSED STABILITY DATE: 2030
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 61076-2:2024
48B/3119/CDV – 2 – IEC CDV 61076-2  IEC:2024
1 CONTENTS
2 1 Scope . 6
3 2 Normative references . 6
4 3 Terms and definitions . 6
5 4 Technical information . 7
6 4.1 System of levels . 7
7 4.1.1 Performance levels . 7
8 4.1.2 Compatibility levels. 7
9 4.2 Classification into climatic categories . 7
10 4.3 Clearance and creepage distances . 7
11 4.4 Current-carrying capacity . 7
12 4.5 Marking . 8
13 5 Dimensional information . 8
14 5.1 Isometric view and common features . 8
15 5.2 Pin assignment and other definitions . 8
16 5.3 Engagement (mating) information . 8
17 5.4 Fixed connectors . 8
18 5.5 Free connectors . 8
19 5.6 Accessories . 8
20 5.7 Mounting information . 8
21 5.8 Gauges . 9
22 6 Characteristics . 9
23 6.1 Electrical characteristics . 9
24 6.2 Transmission characteristics . 9
25 6.3 Mechanical characteristics . 9
26 6.4 Other characteristics . 9
27 6.5 Environmental aspects . 9
28 7 Tests and test schedules . 9
29 7.1 General aspects . 9
30 7.2 Test schedules . 10
31 7.2.1 General . 10
32 7.2.2 Basic (minimum) test schedule . 10
33 7.2.3 Full test schedule . 11
34 7.3 Test procedures and measuring methods . 27
35 7.4 Pre-conditioning . 28
36 7.5 Wiring and mounting of specimens . 28
37 7.5.1 Wiring . 28
38 7.5.2 Mounting . 28
40 No table of figures entries found.
41 Table 1 – Basic (minimum) test . 11
42 Table 2 – Test group P . 13
43 Table 3 – Test group AP . 14
44 Table 4 – Test group BP . 17
45 Table 5 – Test group CP . 19
46 Table 6 – Test group DP . 20
47 Table 7 – Test group EP . 22

oSIST prEN IEC 61076-2:2024
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48 Table 8 – Test group FP . 23
49 Table 9 – Test group GP . 24
50 Table 10 – Test group HP . 24
51 Table 11 – Test group KP . 25
52 Table 12 – Test group LP . 26
53 Table 13 – Test group MP . 27
oSIST prEN IEC 61076-2:2024
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57 INTERNATIONAL ELECTROTECHNICAL COMMISSION
58 ____________
59 CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
60 PRODUCT REQUIREMENTS –
62 Part 2: Sectional specification for circular connectors
64 FOREWORD
65 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
66 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
67 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
68 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
69 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
70 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
71 in the subject dealt with may participate in this preparatory work. International, governmental and non-
72 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
73 with the International Organization for Standardization (ISO) in accordance with conditions determined by
74 agreement between the two organizations.
75 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
76 consensus of opinion on the relevant subjects since each technical committee has representation from all
77 interested IEC National Committees.
78 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
79 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
80 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
81 misinterpretation by any end user.
82 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
83 transparently to the maximum extent possible in their national and regional publications. Any divergence
84 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
85 the latter.
86 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
87 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
88 services carried out by independent certification bodies.
89 6) All users should ensure that they have the latest edition of this publication.
90 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
91 members of its technical committees and IEC National Committees for any personal injury, property damage or
92 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
93 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
94 Publications.
95 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
96 indispensable for the correct application of this publication.
97 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
98 patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
99 respect thereof. As of the date of publication of this document, IEC [had/had not] received notice of (a)
100 patent(s), which may be required to implement this document. However, implementers are cautioned that this
101 may not represent the latest information, which may be obtained from the patent database available at
102 https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
103 IEC 61076-2 has been prepared by subcommittee 48B: Electrical connectors, of IEC technical
104 committee 48: Electrical connectors and mechanical structures for electrical and electronic
105 equipment. It is an International Standard.
106 This third edition cancels and replaces the second edition published in 2011. This edition
107 constitutes a technical revision.
108 This edition includes the following significant technical changes with respect to the previous
109 edition:
110 a) Added content to the Technical information, Dimensional information and the
111 Characteristics clauses
112 b) Updated the Test schedule table format and added Notes and other information
113 c) Added Table M with transmission characteristics tests

oSIST prEN IEC 61076-2:2024
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114 d) Deleted clause 7 regarding Blank detail specification
115 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
117 Full information on the voting for its approval can be found in the report on voting indicated in
118 the above table.
119 The language used for the development of this International Standard is English.
120 A list of all parts of the IEC 61076 series, published under the general title Connectors for
121 electrical and electronic equipment – Product requirements, can be found on the IEC website.
122 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
123 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
124 available at www.iec.ch/members_experts/refdocs. The main document types developed by
125 IEC are described in greater detail at www.iec.ch/standardsdev/publications.
126 The committee has decided that the contents of this document will remain unchanged until the
127 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
128 specific document. At this date, the document will be
129 • reconfirmed,
130 • withdrawn,
131 • replaced by a revised edition, or
132 • amended.
oSIST prEN IEC 61076-2:2024
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136 CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT –
137 PRODUCT REQUIREMENTS –
139 Part 2: Sectional specification for circular connectors
142 1 Scope
143 This part of IEC 61076 establishes uniform specifications and technical information for
144 circular connectors. It should be used in conjunction with the generic specification
145 IEC 61076-1 for product requirements and with IEC 62197-1 for quality assessment
146 requirements as the basis for preparation of consistent detail product specifications for
147 circular connectors.
148 NOTE1 The quality assessment requirements for connectors according to the IEC 61076 series are detailed in
149 IEC 62197-1.
150 In the event of conflict between this sectional product specification and the detail product
151 specification, it is intended that the requirements of the detail product specification prevail.
152 2 Normative references
153 The following documents are referred to in the text in such a way that some or all of their
154 content constitutes requirements for this document. For dated references, only the edition
155 cited applies. For undated references, the latest edition of the referenced document (including
156 any amendments) applies.
157 IEC 60068-1, Environmental testing – Part 1: General and guidance
158 IEC 60352 (all parts), Solderless connections
159 IEC 60512 (all parts), Connectors for electronic equipment – Basic testing procedures and
160 measuring methods
161 IEC 60664-1, Insulation coordination for equipment within low-voltage supply systems – Part
162 1: Principles, requirements and tests
163 IEC 61076-1, Connectors for electronic equipment – Product requirements – Part 1: Generic
164 specification
165 IEC 61984, Connectors – Safety requirements and tests
166 IEC 62197-1, Connectors for electronic equipment – Quality assessment requirements –
167 Part 1: Generic specification
168 3 Terms and definitions
169 For the purposes of this document, the terms and definitions given in IEC 61076-1,
170 IEC 60512-1, IEC 61984 and in IEC 60664-1 apply.
172 ISO and IEC maintain terminology databases for use in standardization at the following
173 addresses:
174 • IEC Electropedia: available at https://www.electropedia.org/
175 • ISO Online browsing platform: available at https://www.iso.org/obp

oSIST prEN IEC 61076-2:2024
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176 4 Technical information
177 4.1 System of levels
178 Clauses 4.1.1 and 4.1.2 provide information about Performance and Compatibility levels
179 (respectively).
180 4.1.1 Performance levels
181 If appropriate, the detail product specification shall contain information about the different
182 performance levels.
183 The term ‘performance level’ reflects the grouping of the environmental and mechanical
184 stresses at which a component is tested, and also such features as long-term stability of
185 electrical characteristics. If different levels are defined in the detail product specification, they
186 shall be numbered, where the lowest number (1) usually indicates the highest performance.
187 4.1.2 Compatibility levels
188 As a function of the standardization degree, four levels characterize the compatibility of
189 connectors from different sources. These levels are defined in IEC 61076-1 and should, when
190 appropriate, be indicated in the detail product specification of circular connectors.
191 4.2 Classification into climatic categories
192 Unless impractical, the lower and upper temperatures and the duration of the damp heat,
193 steady state test should be described in a table similar to the example given in IEC 61076-1.
194 For a correct assignment of climatic category, the correct relationship between the upper
195 category temperature (UCT) and the upper limiting temperature (ULT) of a connector (implied
196 in the derating diagram(s) discussed in 4.4), as well as between the lower category
197 temperature (LCT) and the lower limiting temperature (LLT) of a connector, see IEC 61984
198 relevant definitions.
199 4.3 Clearance and creepage distances
200 Permissible working or rated voltages depend on the connector end-use application and on
201 the applicable or specified safety requirements.
202 Clearance and creepage distances as well as proof voltages under specified air pressure
203 shall be specified in the detail product specification, based on the assigned rated insulation
204 voltage. See IEC 61984, IEC 60664-1 or IEC/TR 63040, as applicable.
205 4.4 Current-carrying capacity
206 For each connector, the current-carrying capacity for the declared wire size (typically the
207 maximum) shall be specified in the detail product specification. It is preferable that the
208 derating curve for the relevant wire size, determined in accordance with test 5b of IEC 60512-
209 5-2 is prepared. Alternatively, it is allowed to provide only one value of rated current for a
210 specified wire size at a specified temperature as described in IEC 60512-5-1.
211 NOTE 1 – The derating curve(s) can be provided in graphic form and/or in mathematical form with the formula:
213 where:
214 I = working current at ambient temperature t;
(t)
215 I = working current at 0 °C (intersection with y-axis);
(0 °C)
216 t = ambient temperature;
217 ULT = upper limiting temperature (intersection with x-axis ≥ UCT (upper category temperature)
218 NOTE 2 – The basic diagram determined in accordance with test 5b of IEC 60512-5-2 is then verified by a
219 temperature rise test 5a of IEC 60512-5-1

oSIST prEN IEC 61076-2:2024
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220 4.5 Marking
221 Each connector and its associated package shall be marked in accordance with the
222 requirements specified in IEC 61076-1.
223 5 Dimensional information
224 Dimensions provided in the detail product specification for circular connectors shall provide
225 – mating information;
226 – mounting information;
227 – overall dimension;
228 – locking and sealing information, if applicable;
229 – information on termination and cable fixing.
230 For more details see IEC 61076-1.
231 5.1 Isometric view and common features
232 Isometric view and common features shall be provided in the detail product specification.
233 5.2 Pin assignment and other definitions
234 Pin assignment and other definitions, if applicable, shall be provided in the detail product
235 specification.
236 5.3 Engagement (mating) information
237 Mating information shall be provided in the detail product specification including, as
238 applicable:
239 − mating direction;
240 − electrical engagement length;
241 − contact levels and sequencing;
242 − perpendicular to the mating direction;
243 − inclination;
245 5.4 Fixed connectors
246 Fixed connectors shall be described in the detail product specification with relevant drawing(s)
247 providing interface dimensions for mating and locking – if means are provided – with counterpart
248 connectors and the mounting of accessories, if any, and termination dimensions and type(s).
250 5.5 Free connectors
251 Free connectors shall be described in the detail product specification with relevant drawing(s) providing
252 interface dimensions for mating and locking – if means are provided – with counterpart connectors and
253 the mounting of accessories, if any, and termination dimensions and type(s).
255 5.6 Accessories
256 Accessories, such as special contacts, coding devices, mounting devices, if any, shall be described by
257 the detail product specification with relevant drawing(s) providing interface dimensions for mounting on
258 the corresponding connector(s).
260 5.7 Mounting information
261 Mounting information shall be provided in the detail product specification.
oSIST prEN IEC 61076-2:2024
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263 5.8 Gauges
264 Sizing and retention force gauges (e.g. for mechanical tests on contacts and terminations), as
265 well as gauges deemed to verify the connector’s mechanical function, such as engaging
266 /separating /insertion /withdrawal force gauges, probes (for damage testing), contact
267 resistance gauges, test panels (e.g., for voltage proof test and/or for EMC/crosstalk test, etc),
268 if applicable, shall be described in the detail product specification.
269 6 Characteristics
270 To provide information on specified essential electrical and mechanical characteristics,
271 preferred methods on tests and measurements are listed in 6.1 through 6.3; additional
272 characteristics may be added to the detail product specification, when appropriate.
273 6.1 Electrical characteristics
274 Electrical characteristics, such as minimum clearance and creepage distances based on
275 assigned rated (insulation) voltage(s), presence or not of protective earth (PE) and/or
276 functional earth (FE) contact(s), voltage proof, current-carrying capacity, contact and shield (if
277 any) resistance, insulation resistance, characteristic impedance, as applicable to the specific
278 connectors, shall be provided in the detail product specification.
280 6.2 Transmission characteristics
281 Transmission characteristics, such as attenuation/insertion loss, return loss, near-end
282 crosstalk (NEXT) loss, far-end crosstalk (FEXT) loss, voltage standing wave ratio (VSWR),
283 transfer impedance/shielding effectiveness, as far as applicable, shall be provided by the
284 product detail specification.
286 6.3 Mechanical characteristics
287 Mechanical characteristics such as mechanical operation (number of mating cycles),
288 effectiveness of connector coupling devices, engaging and separating forces (or insertion and
289 withdrawal forces), contact retention in insert, insert retention in housing, polarizing and
290 coding, as applicable, shall be provided in the detail product specification.
292 6.4 Other characteristics
293 Other functional characteristics, such as shock and vibration (with relevant testing method
294 either random or sine), degree of protection provided by enclosures (IP code), screen and
295 shielding properties, shall be provided as applicable in the detail product specification.
297 6.5 Environmental aspects
298 Marking of insulating materials for recyclability purposes at end-of-life, as well as design/use
299 of materials, as applicable, shall be provided by detail product specification
300 7 Tests and test schedules
301 7.1 General aspects
302 See IEC 61076-1.
303 The detail product specification shall state the test sequence(s) (in accordance with this
304 standard), and the number of specimens for each test sequence (not less than four mated
305 pairs).
306 Individual variants may be submitted to type tests for approval of those variants.

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307 It is permissible to limit the number of variants tested to a selection representative of the
308 whole range for which approval is required (which may be less than the range covered by the
309 detail product specification), but each feature and characteristic shall be proved.
310 The test specimens shall have been processed in a careful and workmanlike manner, in accordance
311 with good current practice.
312 NOTE – When the preparation of test specimens involves wiring, the relevant part of I
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