FprEN IEC 61076-2-117:2026
(Main)Connectors for electrical and electronic equipment - Detail specification for shielded, free and fixed circular connectors M12 to M40 for power, signal and data transmission with frequencies up to 600 MHz
Steckverbinder für elektrische und elektronische Geräte – Teil 2-117: Einzelspezifikation für geschirmte, freie und feste Rundsteckverbinder M12 bis M40 für Leistungs-, Signal- und Datenübertragung mit Frequenzen bis 600 MHz
Connecteurs pour équipements électriques et électroniques - spécification particulière pour les fiches et embases circulaires écrantées m12 à m40 pour la transmission de puissance, de signaux et de données à des fréquences jusqu’à 600 MHz
Konektorji za električno in elektronsko opremo - Podrobna specifikacija za oklopljene, gibljive in pritrjene konektorje M12 do M40 za prenos električnega napajanja, signalov in podatkov s frekvencami do 600 MHz
General Information
- Status
- Not Published
- Publication Date
- 30-Aug-2026
- Technical Committee
- CLC/SR 48B - Connectors
- Drafting Committee
- IEC/SC 48B - IEC_SC_48B
- Current Stage
- 5060 - Voting results sent to TC, SR - Formal Approval
- Start Date
- 29-May-2026
- Completion Date
- 29-May-2026
Overview
FprEN IEC 61076-2-117:2026 is an international standard developed by CLC and IEC for connectors used in electrical and electronic equipment. This detailed specification covers shielded, free and fixed circular connectors ranging from M12 to M40 sizes, supporting power, signal, and data transmission at frequencies up to 600 MHz. These connectors are essential components in modern industrial automation, power supply systems, and high-speed networking environments.
By specifying critical dimensions, mechanical and electrical characteristics, and environmental and testing requirements, this standard facilitates interoperability, performance, and reliability for circular connectors, both in current and future applications.
Key Topics
Connector Types and Sizes:
- M12, M17, M23, and M40 circular connectors
- Screw-locking and quick-locking mechanisms
- Shielded and unshielded configurations
Transmission Capabilities:
- Power transmission up to 600 V AC/DC and up to 70 A
- Signal transmission up to 50 V AC/DC and up to 30 A
- Data transmission at frequencies up to 600 MHz, supporting Ethernet standards such as Fast Ethernet and Gigabit Ethernet
Design Features:
- Multiple coding types prevent mismating, ensuring compatibility and safety
- Fixed and rewirable connectors with male or female contacts
- Support for straight and right-angled versions
- Various mounting styles, including flange and single-hole panel mounting
Performance and Testing:
- Mechanical performance: IP protection ratings, vibration, shock resistance
- Electrical performance: contact resistance, insulation resistance, and current-carrying capacity
- Transmission performance: insertion loss, return loss, cross talk, and electromagnetic compatibility
- Extensive test schedules for dynamic, mechanical, electrical, and environmental durability
Applications
FprEN IEC 61076-2-117:2026 connectors are widely utilized in numerous demanding environments, offering robust solutions for:
- Industrial Automation: One-cable automation for sensors, actuators, and control systems needing both power and high-speed data
- Robotics: Reliable connections for motors, feedback devices, and communication modules
- Transport and Rail: Secure signal and power connections in vehicles and infrastructure
- Machinery and Equipment: Interfacing programmable logic controllers (PLCs), drives, and industrial PCs
- Networking and Communication: Transmission of Ethernet and other industrial network protocols up to 600 MHz, including Fast Ethernet, Gigabit Ethernet, and Single-Pair Ethernet
- Power Distribution: Safe and standardized interconnection of power supplies across automation equipment
Related Standards
Organizations involved in connector and electrotechnical standardization may reference or use these related standards:
- IEC 61076-1 - General requirements for connectors for electronic equipment
- IEC 60512 series - Connectors for electronic equipment - Tests and measurements
- IEC 60068 series - Environmental testing of electrotechnical products
- IEC 60352 series - Solderless connections
- IEEE 802.3 - Ethernet standards, referenced for supported data protocols
- IEC 60050-581 - Electromechanical components for electronic equipment vocabulary
Conclusion
Implementing FprEN IEC 61076-2-117:2026 ensures compatibility, safety, and high performance for shielded circular connectors in industrial and digital applications. Its specifications help manufacturers, system integrators, and end-users reduce risk, streamline installation, and meet demanding requirements for modern electrical, automation, and communication infrastructures. Adopting this standard supports future-ready and internationally standardized connector solutions.
Frequently Asked Questions
FprEN IEC 61076-2-117:2026 is a draft published by CLC. Its full title is "Connectors for electrical and electronic equipment - Detail specification for shielded, free and fixed circular connectors M12 to M40 for power, signal and data transmission with frequencies up to 600 MHz". This standard covers: Connectors for electrical and electronic equipment - Detail specification for shielded, free and fixed circular connectors M12 to M40 for power, signal and data transmission with frequencies up to 600 MHz
Connectors for electrical and electronic equipment - Detail specification for shielded, free and fixed circular connectors M12 to M40 for power, signal and data transmission with frequencies up to 600 MHz
FprEN IEC 61076-2-117:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 61076-2-117:2025
01-september-2025
Konektorji za električno in elektronsko opremo - Podrobna specifikacija za
oklopljene, gibljive in pritrjene konektorje M12 do M40 za prenos električnega
napajanja, signalov in podatkov s frekvencami do 600 MHz
Connectors for electrical and electronic equipment - Detail specification for shielded, free
and fixed circular connectors m12 to m40 for power, signal and data transmission with
frequencies up to 600 MHz
Connecteurs pour équipements électriques et électroniques -S spécification particulière
pour les fiches et embases circulaires écrantées m12 à m40 pour la transmission de
puissance, de signaux et de données à des fréquences jusqu’à 600 MHz
Ta slovenski standard je istoveten z: prEN IEC 61076-2-117:2025
ICS:
31.220.10 Vtiči in vtičnice, konektorji Plug-and-socket devices.
Connectors
oSIST prEN IEC 61076-2-117:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN IEC 61076-2-117:2025
oSIST prEN IEC 61076-2-117:2025
48B/3166/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61076-2-117 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-08-01 2025-10-24
SUPERSEDES DOCUMENTS:
48B/3093/CD, 48B/3120A/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 electrical and electronic equipment – Detail specification for shielded, free and fixed
circular connectors M12 to M40 for power, signal and data transmission with frequencies up to 600 MHz
PROPOSED STABILITY DATE: 2028
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 61076-2-117:2025
IEC 61076-2-117 Ed1©IEC 2025
4 CONTENTS
6 FOREWORD . 7
7 INTRODUCTION . 9
8 1 Scope . 10
9 2 Normative references . 10
10 3 Terms and definitions . 13
11 4 Technical information . 13
12 4.1 Systems of levels – Compatibility levels, according to IEC 61076-1 . 13
13 4.1.1 Performance level . 13
14 4.1.2 Compatibility levels according to IEC 61076-1. 13
15 4.2 Classification into climatic categories . 13
16 4.3 Clearance and creepage distances . 13
17 4.4 Current carrying capacity . 13
18 4.5 Marking . 14
19 4.6 Safety aspects . 14
20 5 Dimensional information . 14
21 5.1 General . 14
22 5.2 Coding . 15
23 5.3 Survey of styles and variants . 18
24 5.3.1 Fixed connectors. 18
25 5.3.2 Free connectors . 23
26 5.4 Interface dimensions . 26
27 5.4.1 M12 . 26
28 5.4.2 M17 . 33
29 5.4.3 M23 . 41
30 5.4.4 M40 . 49
31 5.5 Engagement (mating) information . 56
32 5.5.1 Engagement (mating) direction . 56
33 5.6 Gauges . 60
34 6 Characteristics . 61
35 6.1 General . 61
36 6.2 Contact element assignment . 61
37 6.3 Classification into climatic category . 68
38 6.4 Electrical characteristics . 69
39 6.4.1 Voltage information for Creepage and clearance distances . 69
40 6.4.2 Voltage proof . 70
41 6.4.3 Current-carrying capacity . 70
42 6.4.4 Current rating . 71
43 6.4.5 Contact resistance – interface only (separable fixed and free contact) . 71
44 6.4.6 Input to output d.c. resistance . 71
45 6.4.7 Input to output d.c. resistance unbalanced . 72
46 6.4.8 Insulation resistance . 72
47 6.4.9 Impedance . 72
48 6.5 Transmission performance . 73
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49 6.5.1 General . 73
50 6.5.2 Insertion loss . 73
51 6.5.3 Return loss . 73
52 6.5.4 Near-end cross talk (NEXT) . 74
53 6.5.5 Far-end cross talk (FEXT) . 74
54 6.5.6 Transverse conversion loss (TCL) . 74
55 6.5.7 Transverse conversion transfer loss (TCTL) . 75
56 6.5.8 Transfer impedance . 75
57 6.5.9 Coupling attenuation . 75
58 6.5.10 Power sum alien (exogenous) NEXT (PS ANEXT) . 76
59 6.5.11 Power sum alien (exogenous) FEXT (PS AFEXT) . 76
60 6.5.12 Propagation delay . 77
61 6.6 Mechanical characteristics . 77
62 6.6.1 IP degree of protection . 77
63 6.6.2 Mechanical operation . 77
64 6.6.3 Effectiveness of connector coupling devices . 77
65 6.6.4 Insertion and withdrawal forces . 78
66 6.6.5 Polarizing method . 78
67 6.6.6 Vibration (sinusoidal) . 79
68 6.6.7 Shock . 79
69 6.6.8 Severities . 79
70 7 Tests and test schedule . 80
71 7.1 General . 80
72 7.2 Mounting of specimens . 80
73 7.2.1 General . 80
74 7.2.2 Arrangement for contact resistance measurement . 80
75 7.2.3 Arrangement for dynamical stress tests . 81
76 7.2.4 Wiring of specimens . 81
77 7.3 Test procedures and measuring methods . 81
78 7.4 Preconditioning . 82
79 7.5 Test schedules . 82
80 7.5.1 General . 82
81 7.5.2 Basic (minimum) test schedule . 82
82 7.5.3 Full test schedule . 82
83 7.5.4 Test group AP – Dynamic/Climatic . 84
84 7.5.5 Test group BP – Mechanical endurance . 86
85 7.5.6 Test group CP – Electrical load . 87
86 7.5.7 Test group DP – Chemical resistivity . 88
87 7.5.8 Test group EP – Connection method tests . 88
88 7.5.9 Test group FP – Electrical transmission . 89
89 7.5.10 Test group GP – Transfer Impedance and Coupling Attenuation . 90
90 7.5.11 Test Group HP – Current-carrying capacity . 90
92 Figure 1 – Fixed connector, male or female contacts, straight version, with a square flange
93 front mounting . 20
94 Figure 2 – Fixed connector, male or female contacts, straight version, single-hole mounting,
95 with or without mounting orientation . 21
96 Figure 3 – Fixed connector, male or female contacts, right-angled version, with a square flange
97 front mounting . 22
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98 Figure 4 – Fixed connector, male or female contacts, right-angled version,
99 single-hole mounting . 22
100 Figure 5 – Rewirable connector, male contacts, straight version . 24
101 Figure 6 – Non-rewirable connector, male contacts, straight version . 25
102 Figure 7 – Rewirable connector, male contacts, straight version . 25
103 Figure 8 – Non-rewirable connector, male contacts, straight version . 26
104 Figure 9 – M12 mating dimensions for the coding Type 1 for male connectors . 27
105 Figure 10 – Mating dimensions for the coding Type 3 and style with male contacts . 29
106 Figure 11 – M12 mating dimensions for the female connectors (at the example of coding Type
107 1 / 2) . 31
108 Figure 12 – M12 mating dimensions for the fixed connectors (side view) . 32
109 Figure 13 – Common dimensions for M17 Type 1/1A/1B male connectors . 33
110 Figure 14 – Detail dimensions for M17 Type 1/1A/1B male connectors . 34
111 Figure 15 – Common dimensions for M17 Type 2/2A/2B male connectors . 35
112 Figure 16 – Detail dimensions for M17 Type 2/2A/2B male connectors . 37
113 Figure 17 – Pin dimensions for M17 Type 1/1A/1B/2/2A/2B male connectors . 38
114 Figure 18 – M17 mating dimensions for the fixed connector (side view) . 39
115 Figure 19 – Common dimensions for M23 Type 1/1A male connectors . 41
116 Figure 20 – Detail dimensions for M23 Type 1/1A male connector . 43
117 Figure 21 – Common dimensions for M23 Type2/2A male connectors . 43
118 Figure 22 – Detail dimensions for M23 Type 2/2A male connector . 45
119 Figure 23 – Pin dimensions for M23 Type 1/1A/2/2A male connectors . 46
120 Figure 24 – M23 mating dimensions for the fixed connector (side view) . 48
121 Figure 25 – Common dimensions for M40 Type1/1A male connectors . 49
122 Figure 26 – Detail dimensions for M40 Type1/1A male connector . 51
123 Figure 27 – Common dimensions for M40 Type2/2A male connectors . 51
124 Figure 28 – Detail dimensions for M40 Type2/2A male connector . 52
125 Figure 29 – Pin dimensions for M40 Type 1/1A/2/2A male connectors . 53
126 Figure 30 – M40 mating dimensions for the fixed connectors (side view) . 54
127 Figure 31 – Engagement (mating) variants . 56
128 Figure 32 – Gauge dimension . 60
129 Figure 33 – Contact element assignments, front views, M12, Type 1 . 61
130 Figure 34 – Contact element assignments, front views, M12, Type 2 . 62
131 Figure 35 – Contact element assignments, front views, M12, Type 3 . 62
132 Figure 36 – Contact element assignments, front views, M17, Type 1/1A . 63
133 Figure 37 – Contact element assignments, front views, M17, Type 1B. 63
134 Figure 38 – Contact element assignments, front views, M17, Type 2/2A . 64
135 Figure 39 –Contact element assignments, front views, M17, Type 2B . 64
136 Figure 40 – Contact element assignments, front views, M23, Type 1/1A . 65
137 Figure 41 – Contact element assignments, front views, M23, Type 2/2A . 66
138 Figure 42 – Contact element assignments, front views, M40, Type 1/1A . 67
139 Figure 43 – Contact element assignments, front views, M40, Type 2/2A . 67
140 Figure 44 – Contact resistance arrangement . 80
141 Figure 45 – Arrangement for vibration and mechanical shock tests . 81
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143 Table 1 – Coding . 15
144 Table 2 – Styles of fixed connectors . 19
145 Table 3 – Dimensions of styles Mxx_DM and Mxx_DF, Figure 1 . 20
146 Table 4 – Dimensions of styles Mxx_EM, Mxx_EF, Mxx_GM and Mxx_GF, Figure 2 . 21
147 Table 5 – Dimensions of styles Mxx_DM90 and Mxx_DF90, Figure 3 . 22
148 Table 6 – Dimensions of style Mxx_EM90 and Mxx_EF90, Figure 4 . 23
149 Table 7 – Styles of free connectors . 23
150 Table 8 – Dimensions of styles Mxx_JM and Mxx_JF, Figure 5 . 24
151 Table 9 – Dimensions of style Mxx_LM and Mxx_LF, Figure 6 . 25
152 Table 10 – Dimensions of styles Mxx_JM and Mxx_JF, Figure 7 . 26
153 Table 11 – Dimensions for styles Mxx_LMC and Mxx_LFC, Figure 8 . 26
154 Table 12 – Dimensions for Figure 9 . 28
155 Table 13 – Dimensions for Figure 10 . 30
156 Table 14 – Dimensions for Figure 11 . 31
157 Table 15 – Dimensions for Figure 12 . 32
158 Table 16 – Dimensions for Figure 13 . 34
159 Table 17 – Dimensions for Figure 14 . 35
160 Table 18 – Dimensions for Figure 15 . 36
161 Table 19 – Dimensions for Figure 16 . 37
162 Table 20 – Dimensions for Figure 17 . 39
163 Table 21 – Dimensions for Figure 18 . 40
164 Table 22 – Dimensions for Figure 19 . 42
165 Table 23 – Dimensions for Figure 20 . 43
166 Table 24 – Dimensions for Figure 21 . 44
167 Table 25 – Dimensions for Figure 22 . 45
168 Table 26 – Dimensions for Figure 23 . 47
169 Table 27 – Dimensions for Figure 24 . 48
170 Table 28 – Dimensions for Figure 25 . 50
171 Table 29 – Dimensions for Figure 26 . 51
172 Table 30 – Dimensions for Figure 27 . 52
173 Table 31 – Dimensions for Figure 28 . 53
174 Table 32 – Dimensions for Figure 29 . 54
175 Table 33 – Dimensions for Figure 30 . 55
176 Table 34 – Connector dimensions in mated and locked position . 57
177 Table 35 – Gauges . 61
178 Table 36 – Contact element assignments M12 . 62
179 Table 37 – Contact Element assignments M17 . 65
180 Table 38 – Contact Element assignments M23 . 66
181 Table 39 – Contact Element assignments M40 . 68
182 Table 40 – Pin sizes . 68
183 Table 41 – Climatic category . 69
184 Table 42 – Rated voltage . 69
185 Table 43 – Voltage proof . 70
186 Table 44 – Current ratings of connectors . 71
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187 Table 45 – Maximum contact resistance . 71
188 Table 46 – Maximum input to output d.c. resistance . 72
189 Table 47 – Maximum input to output d.c. resistance unbalanced . 72
190 Table 48 – Minimum insulation resistance . 72
191 Table 49 – Insertion loss requirements . 73
192 Table 50 – Return loss requirements . 73
193 Table 51 – Near-end cross talk requirements . 74
194 Table 52 – Far-end cross talk requirements. 74
195 Table 53 – Transverse conversion loss requirements . 74
196 Table 54 – Transverse conversion transfer loss requirements . 75
197 Table 55 – Transfer impedance requirements . 75
198 Table 56 – Coupling attenuation requirements . 75
199 Table 57 – Power sum alien NEXT requirements . 76
200 Table 58 – Power sum alien FEXT requirements . 76
201 Table 59 – Propagation delay requirements . 77
202 Table 60 – Number of cycles of mechanical operations . 77
203 Table 61 – Minimum forces for the quick-locking mechanism. 78
204 Table 62 – Insertion and withdrawal forces . 78
205 Table 63 – Polarizing insertion force . 79
206 Table 64 – Severities for Shock and Vibration (sinusoidal) . 79
207 Table 65 – Number of test specimens and contacts . 82
208 Table 66 – Test group P . 83
209 Table 67 – Test group AP . 84
210 Table 68 – Test group BP . 86
211 Table 69 – Test group CP . 87
212 Table 70 – Test group DP . 88
213 Table 71 – Test group EP . 88
214 Table 72 – Test group FP . 89
215 Table 73 – Test group GP . 90
216 Table 74 – Test Group HP . 90
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219 INTERNATIONAL ELECTROTECHNICAL COMMISSION
220 ____________
222 CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT
224 Detail specification for shielded, free and fixed circular connectors M12 to M40
225 for power, signal and data transmission with frequencies up to 600 MHz
228 FOREWORD
229 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national
230 electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all
231 questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities,
232 IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS)
233 and Guides (hereafter referred to as "IEC Publication(s)"). Their preparation is entrusted to technical committees; any IEC
234 National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental
235 and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with
236 the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between
237 the two organizations.
238 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus
239 of opinion on the relevant subjects since each technical committee has representation from all interested IEC National
240 Committees.
241 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in
242 that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC
243 cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.
244 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to
245 the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and
246 the corresponding national or regional publication shall be clearly indicated in the latter.
247 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment
248 services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by
249 independent certification bodies.
250 6) All users should ensure that they have the latest edition of this publication.
251 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of
252 its technical committees and IEC National Committees for any personal injury, property damage or other damage of any
253 nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication,
254 use of, or reliance upon, this IEC Publication or any other IEC Publications.
255 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable
256 for the correct application of this publication.
257 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). IEC
258 takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the
259 date of publication of this document, IEC had not received notice of (a) patent(s), which may be required to implement this
260 document. However, implementers are cautioned that this may not represent the latest information, which may be obtained
261 from the patent database available at https://patents.iec.ch [and/or] www.iso.org/patents. IEC shall not be held responsible
262 for identifying any or all such patent rights.
263 IEC 61076-2-117 has been prepared by subcommittee 48B: Electrical connectors, of IEC technical
264 committee 48: Electrical connectors and mechanical structures for electrical and electronic equipment.
265 It is an International Standard.
266 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
268 Full information on the voting for its approval can be found in the report on voting indicated in the above
269 table.
270 The language used for the development of this International Standard is English.
oSIST prEN IEC 61076-2-117:2025
IEC 61076-2-117 Ed1©IEC 2025
271 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in accordance
272 with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, and the IEC Directives, JTC
273 1 Supplement available at www.iec.ch/members_experts/refdocs. The main document types developed
274 by IEC are described in greater detail at www.iec.ch/publications.
275 The committee has decided that the contents of this document will remain unchanged until the stability
276 date indicated on the IEC website under webstore.iec.ch in the data related to the specific document.
277 At this date, the document will be
278 • reconfirmed,
279 • withdrawn,
280 • replaced by a revised edition, or
281 • amended.
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283 INTRODUCTION
IEC SC 48B – Electrical connectors IEC 61076-2-117 Ed. 1
Specification available from:
IEC General secretariat or from the addresses
shown on the inside cover.
DETAIL SPECIFICATION in accordance with IEC
61076-2
Shielded and unshielded circular connectors
for power, signal and data applications with
M12, M17, M23, M40
screw- and quick-locking
Power
up to 600 V AC/ DC and up to 70 A
Signal
up to 50 V AC / DC and up to 30 A
Data
up to 600 MHz
Male and female contacts
Rewirable
Non-rewirable
Fixed- and rewirable connectors with male or
female contacts, mateable with Mxx
screw- or quick-locking plugs.
Free cable connectors
Fixed connectors:
Straight connectors
Right-angled connectors
Flange mounting
Single hole panel mounting
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285 CONNECTORS FOR ELECTRICAL AND ELECTRONIC EQUIPMENT
287 Detail specification for shielded, free and fixed circular connectors M12 to M40
288 for power, signal and data transmission with frequencies up to 600 MHz
292 1 Scope
293 This part of IEC 61076-2 covers shielded and unshielded, free and fixed circular connectors without
294 breaking capacity (COC) for power, signal and data transmission, and specifies the common
295 dimensions, mechanical, electrical and transmission characteristics and environmental requirements as
296 well as test specifications, respectively.
297 The connectors described in this document are equipped with an M12, M17, M23 or M40 screw-locking
298 mechanism or a quick-locking mechanism with a size derived from those. Fixed- and rewirable
299 connectors with male or female contacts, mateable with Mxx screw- or quick-locking plugs.
300 This document provides multiple mating interfaces each of which is associated with a coding preventing
301 the mating of incompatible male and female connectors. The individual codings differ by their numbers
302 of ways, pin layouts and thicknesses, and thus by their power and data transmission capabilities. These
303 codings are referred to as “Type x” where ‘x’ represents an Arabic number.
304 The connectors described in this document are intended to be used in one-cable automation applications
305 which require various combinations and levels of power up to 600 V AC/ DC and up to 70 A, and signal
306 and/or data transmission with frequencies up to 600 MHz.
307 NOTE The connectors described in this standard facilitate data transmission through the following Ethernet media systems
308 as defined in IEEE 802.3:
309 • Single-Pair Ethernet (10BASE-T1, 100BASE-T1, 1000BASE-T1)
310 • Fast Ethernet (100BASE-TX)
311 • Gigabit Ethernet (1000BASE-T)
312 • 10-Gigabit Ethernet (10GBASE-T)
313 2 Normative references
314 The following documents are referred to in the text in such a way that some or all of their content
315 constitutes requirements of this document. For dated references, only the edition cited applies. For
316 undated references, the latest edition of the referenced document (including any amendments) applies.
317 IEC 60050-581, International Electrotechnical Vocabulary – Chapter 581: Electromechanical
318 components for electronic equipment
319 IEC 60068-1, Environmental testing – Part 1: General and guidance
320 IEC 60068-2-60, Environmental testing – Part 2-60: Tests – Test Ke: Flowing mixed gas corrosion test
321 IEC 60352 (all parts), Solderless connections
322 IEC 60512-1, Connectors for electronic equipment – Tests and measurements – Part 1: General
323 IEC 60512-1-1, Connectors for electronic equipment – Tests and measurements – Part 1-1: General
324 examination – Test 1a: Visual examination
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325 IEC 60512-1-2, Connectors for electronic equipment – Tests and measurements – Part 1-2: General
326 examination – Test 1b: Examination of dimension and mass
327 IEC 60512-2-1, Connectors for electronic equipment – Tests and measurements – Part 2-1: Electrical
328 continuity and contact resistance tests – Test 2a: Contact resistance – Millivolt level method
329 IEC 60512-2-5, Connectors for electronic equipment - Tests and measurements - Part 2-5: Electrical
330 continuity and contact resistance tests - Test 2e: Contact disturbance
331 IEC 60512-3-1, Connectors for electronic equipment – Tests and measurements – Part 3-1: Insulation
332 tests – Test 3a: Insulation resistance
333 IEC 60512-4-1, Connectors for electronic equipment – Tests and measurements – Part 4-1: Voltage
334 stress tests – Test 4a: Voltage proof
335 IEC 60512-5-2, Connectors for electronic equipment – Tests and measurements – Part 5-2: Current-
336 carrying capacity tests – Test 5b: Current-temperature derating
337 IEC 60512-6-3, Connectors for electronic equipment – Tests and measurements – Part 6-3: Dynamic
338 stress tests – Test 6c: Shock
339 IEC 60512-6-4, Connectors for electronic equipment – Tests and measurements – Part 6-4: Dynamic
340 stress tests – Test 6d: Vibration (sinusoidal)
341 IEC 60512-9-1, Connectors for electronic equipment – Tests and measurements – Part 9-1: Endurance
342 tests – Test 9a: Mechanical operation
343 IEC 60512-9-2, Connectors for electronic equipment – Tests and measurements – Part 9-2: Endurance
344 tests – Test 9b: Electrical load and temperature
345 IEC 60512-11-1, Electromechanical components for electronic equipment – Basic testing procedures
346 and measuring methods – Part 11: Climatic tests – Section 1: Test 11a – Climatic sequence
347 IEC 60512-11-4, Connectors for electronic equipment – Tests and measurements – Part 11-4: Climatic
348 tests – Test 11d: Rapid change of temperature
349 IEC 60512-11-7, Connectors for electronic equipment – Tests and measurements – Part 11-7: Climatic
350 tests – Test 11g: Flowing mixed gas corrosion test
351 IEC 60512-11-9, Connectors for electronic equipment – Tests and measurements – Part 11-9: Climatic
352 tests – Test 11i: Dry heat
353 IEC 60512-11-10, Connectors for electronic equipment – Tests and measurements – Part 11-10:
354 Climatic tests – Test 11j: Cold
355 IEC 60512-11-12, Connectors for electronic equipment – Tests and measurements – Part 11-12:
356 Climatic tests – Test 11m: Damp heat, cyclic
357 IEC 60512-13-2, Connectors for electronic equipment – Tests and measurements – Part 13-2:
358 Mechanical operation tests – Test 13b: Insertion and withdrawal forces
359 IEC 60512-13-5, Connectors for electronic equipment – Tests and measurements – Part 13-5:
360 Mechanical operation tests – Test 13e: Polarizing and keying method
361 IEC 60512-15-6, Connectors for electronic equipment - Tests and measurements - Part 15-6: Connector
362 tests (mechanical) - Test 15f: Effectiveness of connector coupling devices
oSIST prEN IEC 61076-2-117:2025
IEC 61076-2-117 Ed1©IEC 2025
363 IEC 60512-16-5, Connectors for electronic equipment – Tests and measurements – Part 16-5:
364 Mechanical tests on contacts and terminations – Test 16e: Gauge retention force (resilient contacts)
365 IEC 60512-19-3, Electromechanical components for electronic equipment – Basic testing procedures
366 and measuring methods – Part 19: Chemical resistance tests – Section 3: Test 19c – Fluid resistance
367 IEC 60512-25-9, Connectors for electronic equipment - Tests and measurements - Part 25-9: Signal
368 integrity tests - Test 25i: Alien crosstalk
369 IEC 60512-26-100, Connectors for electronic equipment – Tests and measurements – Part 26-100:
370 Measurement setup, test and reference arrangements and measurements for connectors according to
371 IEC 60603-7 - Tests 26a to 26g
372 IEC 60512-29-100, Connectors for electronic equipment - Tests and measurements - Part 29-100:
373 Signal integrity tests up to 500 MHz on M12 style connectors - Tests 29a to 29g
374 IEC 60529, Degrees of protection provided by enclosures (IP code)
375 IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1: Principles,
376 requirements and tests
377 IEC 60603-7-1:2011, Connectors for electronic equipment - Part 7-1: Detail specification for 8-way,
378 shielded, free and fixed connectors
379 IEC 60603-7-3:2010, Connectors for electronic equipment - Part 7-3: Detail specification for 8-way,
380 shielded, free and fixed connectors, for data transmission with frequencies up to 100 MHz
381 IEC 60999-1, Connecting devices – Electrical copper conductors – Safety requirements for screw-type
382 and screwless-type clamping units – Part 1: General requirements and particular requirements for
383 clamping units for conductors from 0,2 mm2 up to 35 mm2 (included)
384 IEC 61076-1:2006, Connectors for electronic equipment – Product requirements – Part 1: Generic
385 specification
386 IEC 61076-2, Connectors for electronic equipment - Product requirements - Part 2: Sectional
387 specification for circular connectors
388 IEC 61984:2008, Connectors – Safety requirements and tests
389 IEC 62153-4-12, Metallic communication cable test methods - Part 4-12: Electromagnetic compatibility
390 (EMC) - Coupling attenuation or screening attenuation of connecting hardware - Absorbing clamp
391 method
392 IEC 63171:2021, Connectors for Electrical and Electronic Equipment – Shielded or unshielded free and
393 fixed connectors for balanced single-pair data transmission with current carrying capacity; General
394 requirements and tests
395 IEC 63171-7:2021, Connectors for Electrical and Electronic Equipment – Detail specification for
396 shielded, free and fixed circular connectors with 4 ways up to 7 ways for power and data transmission
397 with frequencies up to 600 MHz
398 ISO 21920-1, Geometrical product specifications (GPS) — Surface texture: Profile — Part 1: Indication
399 of surface texture
oSIST prEN IEC 61076-2-117:2025
IEC 61076-
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