prEN IEC 61851-23-3:2025

Electric vehicle conductive charging system - Part 23-3: DC electric vehicle supply equipment for Megawatt charging systems

Système de charge par conduction pour véhicules électriques - Partie 23-3: Système d’alimentation en courant continu pour véhicules électriques pour les systèmes de recharge mégawatt

Sistem kabelskega napajanja električnih vozil - 23-3. del: Postaja za kabelsko napajanje električnega vozila z enosmernim tokom za megavatne napajalne sisteme

General Information

• Status: Not Published
• Publication Date: 10-Aug-2026
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CLC/TC 69X - Electrical systems for electric road vehicles
• Drafting Committee: IEC/TC 69 - IEC_TC_69
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 17-Jan-2025
• Due Date: 17-Jan-2025
• Completion Date: 17-Jan-2025
• Directive: 2014/94/EU - Directive 2014/94/EU of The European Parliament and of The Council of 22 October 2014 on the deployment of alternative fuels infrastructure
• Directive: 2023/1804 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Directive: 2023/1804-1 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Directive: 2023/1804-2 - Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU
• Mandate: M/581 - Standardisation Request as regards communication exchange, electricity, and hydrogen supply for road, maritime transport and inland navigation in support of Directive 2014/94/EU and its planned revision under the ‘Fit for 55’package
• Ref Project: oSIST prEN IEC 61851-23-3:2025 - Electric vehicle conductive charging system - Part 23-3: DC electric vehicle supply equipment for Megawatt charging systems

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2025
Sistem kabelskega napajanja električnih vozil - 23-3. del: Postaja za kabelsko
napajanje električnega vozila z enosmernim tokom za megavatne napajalne
sisteme
Electric vehicle conductive charging system - Part 23-3: DC electric vehicle supply
equipment for Megawatt charging systems
Système de charge par conduction pour véhicules électriques - Partie 23-3: Système
d’alimentation en courant continu pour véhicules électriques pour les systèmes de
recharge mégawatt
Ta slovenski standard je istoveten z: prEN IEC 61851-23-3:2025
ICS:
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

69/1025/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61851-23-3 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-01-17 2025-04-11
SUPERSEDES DOCUMENTS:
69/912/CD, 69/1017/CC
IEC TC 69 : ELECTRICAL POWER/ENERGY TRANSFER SYSTEMS FOR ELECTRICALLY PROPELLED ROAD VEHICLES AND INDUSTRIAL
TRUCKS
SECRETARIAT: SECRETARY:
Belgium Mr Peter Van den Bossche
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
SC 23H
ASPECTS CONCERNED:
Safety
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:

Electric vehicle conductive charging system - Part 23-3: DC electric vehicle supply equipment for
Megawatt charging systems

PROPOSED STABILITY DATE: 2027
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.

69/1025/CDV                -2-     IEC 61851-23-3 CDV © IEC 2024
1 CONTENTS
3 Introduction. 9
4 1 Scope . 10
5 2 Normative references . 11
6 3 Terms and definitions . 11
7 3.3 Functions . 11
8 4 General requirements . 12
9 5 Classification . 12
10 5.101 Characteristics of EV supply equipment . 12
11 5.101.3 System . 12
12 6 Charging modes and functions . 12
13 6.3 Functions provided in Mode 4 . 12
14 6.3.1 Mandatory functions in Mode 4 . 12
15 6.3.2 Optional functions for Mode 4 . 20
16 7 Communications . 20
17 7.1 Digital communication between the EV supply equipment and the EV . 20
18 7.1.101 Basic communication interface . 20
19 8 Protection against electric shock . 20
20 8.101 General provisions . 20
21 8.101.4 Threshold of perception and startle reaction . 20
22 8.105 Requirements for separated EV supply equipment . 20
23 8.105.1 General . 20
24 8.105.2 Equipotential bonding on side B . 23
25 8.105.3 Impedance to protective conductor on side B . 23
26 8.105.5 Insulation barriers . 23
27 8.105.6 Stored energy . 24
28 8.105.11 Protective conductor dimension cross-sectional area . 25
29 9 Conductive electrical interface requirements. 25
30 9.1 General . 25
31 9.5 Functional description of the DC interface . 25
32 9.6 Functional description of the combined interface . 25
33 9.101 Avoidance of breaking under load . 25
34 10 Requirements for adaptors . 25
35 11 Cable assembly requirements . 26
36 11.7 Cable management and storage means for cables assemblies . 26
37 12 EV supply equipment constructional requirements and tests . 26
38 12.7 Dielectric withstand voltage . 26
39 12.7.102 Protection against transient overvoltages of atmospheric origin or due
40 to switching . 26
41 12.108 Components bridging insulation . 26
42 12.108.1 General . 26
43 13 Overload and short-circuit protection . 27
44 13.101 Short-circuit protection of the DC connection during energy transfer . 27
45 14 Automatic reclosing of protective devices . 28
46 15 Emergency switching or disconnect (optional) . 28

IEC 61851-23-3 CDV © IEC 2024 -3-    69/1025/CDV
47 16 Marking and instructions . 28
48 101 Specific requirements for EV supply equipment . 28
49 101.1 Specific requirements for separated EV supply equipment . 28
50 101.1.1 Operating ranges for voltage, current, and power at side B. 28
51 101.1.2 Voltage and current tolerance at side B . 28
52 101.1.3 Control delay of present current at side B in CCM . 28
53 101.1.4 Descending rate of present current at side B . 28
54 101.1.5 Periodic and random deviation (current ripple at side B during CCM) . 29
55 101.1.8 Side B inductance . 29
56 101.2 Specific requirement for energy transfer with a thermal management system
57 or thermal sensing only . 29
58 101.2.1 General . 29
59 101.2.2 Temperature limits and self-diagnostics . 29
60 101.2.3 Temperature monitoring . 30
61 101.2.4 Tests for thermal management system performance of the EV supply
62 equipment . 30
63 101.3 Specific requirements for temperature-controlled energy transfer . 33
64 102 Test methods . 33
65 102.2.3 Test setups . 33
66 102.2.4 Test load . 34
67 Annex AA (normative) EV supply equipment of System A . 37
68 Annex BB (normative) EV supply equipment of System B . 38
69 Annex CC (normative) EV supply equipment of system MCS . 39
70 CC.1 General . 39
71 CC.2 Circuit diagram . 39
72 CC.2.1 General . 39
73 CC.2.2 Circuit diagram for configuration HH . 39
74 CC.2.3 Circuit diagram for configuration FF . 46
75 CC.2.4 Disabled side B . 46
76 CC.2.5 Requirements for digital communication channel . 48
77 CC.3 Process of energy transfer . 49
78 CC.3.1 General . 49
79 CC.3.2 Normal start up . 50
80 CC.3.3 Normal shutdown during energy transfer. 55
81 CC.3.4 Error and emergency handling . 58
82 CC.3.5 Pause by EV supply equipment using ISO 15118-20:2022 and ISO
83 15118-20:2022/AMD1:202X . 69
84 CC.3.6 Renegotiation initiated by EV or EV supply equipment using ISO 15118-
85 20:2022 . 78
86 CC.4 Safety related functions . 78
87 CC.4.1 Safety measures for side B . 78
88 CC.4.2 Vehicle coupler latching function . 81
89 CC.4.3 Loss of electrical continuity of the charge enable conductor. 81
90 CC.4.4 Loss of electrical continuity of the insertion detection conductor . 82
91 CC.4.5 Voltage check at initialization . 82
92 CC.4.6 Minimum cross-sectional area of the protective conductor . 82
93 CC.4.7 Loss of electrical continuity of the protective conductor . 82
94 CC.5 Additional functions. 82
95 CC.5.1 Pre-charge . 82

69/1025/CDV                -4-     IEC 61851-23-3 CDV © IEC 2024
96 CC.5.2 Sleep mode and communication session restart methods . 84
97 CC.5.3 Configuration EE vehicle connector latch position switch (S 3)
S
98 activation . 88
99 CC.5.4 Configuration EE vehicle connector latch position switch (S 3)
S
100 verification . 88
101 CC.5.5 Handling of operating ranges .
...