prEN IEC 61851-1:2025/prAA:2025
(Amendment)Conductive power and energy transfer systems for electric vehicles - Part 1: General system and specific mode 3 EV charging station requirements
Conductive power and energy transfer systems for electric vehicles - Part 1: General system and specific mode 3 EV charging station requirements
Konduktive Ladesysteme für Elektrofahrzeuge – Teil 1: Allgemeine Anforderungen
Systèmes de transfert de puissance et d’énergie par conduction pour véhicules électriques - Partie 1: Exigences générales des systèmes et spécifiques aux bornes de charge mode 3 pour VE
Sistemi za prenos prevodne moči in energije za električna vozila - 1. del: Splošne zahteve sistema in posebne zahteve za polnilno postajo za električna vozila v načinu 3 - Dopolnilo AA
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Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2026
Sistemi za prenos prevodne moči in energije za električna vozila - 1. del: Splošne
zahteve sistema in posebne zahteve za polnilno postajo za električna vozila v
načinu 3 - Dopolnilo AA
Conductive power and energy transfer systems for electric vehicles - Part 1: General
system and specific mode 3 EV charging station requirements
Konduktive Ladesysteme für Elektrofahrzeuge – Teil 1: Allgemeine Anforderungen
Systèmes de transfert de puissance et d’énergie par conduction pour véhicules
électriques - Partie 1: Exigences générales des systèmes et spécifiques aux bornes de
charge mode 3 pour VE
Ta slovenski standard je istoveten z: prEN IEC 61851-1:2025/prAA:2025
ICS:
43.120 Električna cestna vozila Electric road vehicles
oSIST prEN IEC 61851- en
1:2025/oprAA:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD DRAFT
prEN IEC 61851-1:2025
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
December 2025
ICS 43.120 -
English Version
Conductive power and energy transfer systems for electric
vehicles - Part 1: General system and specific mode 3 EV
charging station requirements
Système de transfert de puissance/énergie conductive pour Konduktive Ladesysteme für Elektrofahrzeuge - Teil 1:
véhicules électriques - Partie 1: Exigences générales et Allgemeine Anforderungen
exigences pour station de charge en mode 3
This draft amendment prAA, if approved, will modify the European Standard prEN IEC 61851-1:2025; it is submitted to CENELEC members
for enquiry.
Deadline for CENELEC: 2026-02-27.
It has been drawn up by CLC/TC 69X.
If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.
This draft amendment was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 82634 Ref. No. prEN IEC 61851-1:2025/prAA:2025 E
Contents Page
1 European foreword . 4
2 1 Modifications to Clause 2, “Normative references” . 5
3 2 Modification to Clause 3, “Terms and definitions” . 5
4 3 Modification to 4.1, “General requirements” . 5
5 4 Modification to 4.2.1, “Mode 1” . 5
6 5 Modification to 4.2.2, “Mode 2” . 5
7 6 Modification to 4.2.3, “Mode 3” . 5
8 7 Modification to 4.3.7, “Intentional and unintentional unmating of the vehicle connector
9 and/or the EV plug” . 5
10 8 Modification to 4.3.8.2, “Ventilation during supply of energy” . 5
11 9 Modification to 4.4.2, “Standard accessories” . 6
12 10 Modification to 4.4.4.1, “General” . 6
13 11 Modification to 4.4.4.2, “Electrical rating” . 6
14 12 Modification to 8.3.2, “Degrees of protection provided by basic interface accessories” . 6
15 13 Modification to 8.4, “Temperature rise” . 6
16 14 Modification to 8.5, “Operation at low temperatures” . 6
17 15 Modification to 8.7.3.4, “Wiring of the neutral conductor” . 6
18 16 Modification to 8.7.4.4, “Cable management and storage means” . 6
19 17 Modification to 8.7.5, “Emergency switching or disconnect equipment (optional)” . 6
20 18 Modification to 8.9.3, “Residual current protective devices protecting connecting points” . 6
21 19 Modification to 8.9.5, “Protective conductor” . 6
22 20 Modification to 8.9.6, “Insulation resistance” . 6
23 21 Modification to 8.10.1, “General” . 7
24 22 Modification to 9.1, “Installation manual” . 7
25 23 Modification to 9.3, “Marking” . 7
26 24 Modification to 10.3, “Minimum temperature functional test” . 7
27 25 Modification to 10.13, “AC withstand voltage test” . 7
28 26 Modification to A.5.4, “Information on legacy EVs using simplified control pilot” . 7
29 27 Modification to Clause B.1, “Circuit diagram for vehicle couplers using a connection
30 switch for proximity detection without current coding” . 7
31 28 Modification to Clause B.2, “Circuit diagram for vehicle couplers using a proximity
32 contact for simultaneous proximity detection and current coding” . 7
33 29 Modification to D.1.1, “General” . 7
34 30 Modification to Clause F.2, “RPT enabling conditions” . 7
35 31 Modification to F.4.1, “General” . 7
36 32 Modification to F.4.2, “Frequency operating range and voltage operating range” . 8
37 33 Modification to F.4.3.1, “General” . 8
38 34 Modification to F.4.3.2, “General” . 8
39 35 Modification to F.4.3.3, “Interface switch” . 8
40 36 Modification to F.4.3.5, “Digital input ports to the interface protection” . 9
41 37 Modification to F.4.3.6, “Islanding detection” . 9
42 38 Modification to F.4.3.7, “Reconnection after tripping or after intentional opening of the
43 interface protection” . 9
44 39 Addition to F.4.5.1, “Starting to generate electrical power” . 10
45 40 Modification to F.4.5.2.1, “Active power response to frequency deviation” . 10
46 41 Modification to F.4.5.2.2, “Voltage related active power reduction” . 10
47 42 Modification to F.4.5.3, “Reactive power control” . 10
48 43 Modification to F.4.5.4.1, “General” . 10
49 44 Modification to F.4.5.4.2, “Active discharge power limitation” . 10
50 45 Modification to F.4.5.4.3, “Q setpoint control mode” . 10
51 46 Modification to F.4.5.4.4, “Cosphi setpoint control mode” . 10
52 47 Modification to F.4.5.5.1, “Voltage support during faults and voltage steps” . 10
53 48 Modification to F.4.5.5.2, “Zero current mode” . 10
54 49 Modification to F.4.6.4, “DC injection” . 11
55 50 Modification to F.4.6.5, “Immunity to under-voltage ride through (UVRT) and over-voltage
56 ride through (OVRT)” . 11
57 51 Modification to F.4.6.6, “Immunity to frequency variation” . 11
58 52 Modification to F.4.6.7, “Immunity to voltage unbalance” . 11
59 53 Modification to F.4.6.8, “Immunity to phase jumps” . 11
60 54 Modification to F.4.7, “Current imbalance” . 11
61 55 Modification to Clause F.8, “Test of RPT enabling” . 12
62 Annex ZA (normative) Normative references to international publications with their
63 corresponding European publications . 13
64 Annex ZZ (informative) Relationship between this European standard and the safety objectives
65 of Directive 2014/35/EU [2014 OJ L96] aimed to be covered . 19
66 European foreword
67 This document (prEN IEC 61851-1:2025/prAA:2025) has been prepared by CLC/TC 69X "Electrical
68 power/energy transfer systems for electrically propelled road vehicles and industrial trucks".
69 This document is currently submitted to the Enquiry.
70 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
71 This document is read in conjunction with prEN IEC 61851-1:2025.
72 This document has been prepared under a standardization request addressed to CENELEC by the European
73 Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
74 Member States.
75 For the relationship with EU Legislation, see informative Annex ZZ, which is an integral part of this document.
76 1 Modifications to Clause 2, “Normative references”
77 Add the following standards:
78 EN 50549-1:2019, Requirements for generating plants to be connected in parallel with distribution networks -
79 Part 1: connection to a LV distribution network - Generating plants up to and including Type B
80 EN 50549-2:2019, Requirements for generating plants to be connected in parallel with distribution networks -
81 Part 2: connection to a MV distribution network - Generating plants up to and including Type B
82 EN 50549-10:2022, Requirements for generating plants to be connected in parallel with distribution networks -
83 Part 10: Tests for conformity assessment of generating units
84 Delete the following standards and add them to the bibliography:
85 UL 746B, Standard for Polymeric Materials - Long Term Property Evaluations
86 IEC/TS 62786-1, Distributed energy resources connection with the grid - Part 1: General 649 requirements
87 2 Modification to Clause 3, “Terms and definitions”
88 In 3.2.16, delete the term “grounding terminal (US, CA)”.
89 In 3.2.17, delete the term “protective grounding (US, CA)”.
90 In 3.2.18, delete the term “protective grounding conductor (US, CA)”.
91 3 Modification to 4.1, “General requirements”
92 Delete at the end of the note “US,”.
93 4 Modification to 4.2.1, “Mode 1”
94 Delete NOTE 1.
95 5 Modification to 4.2.2, “Mode 2”
96 Delete NOTE 3.
97 6 Modification to 4.2.3, “Mode 3”
98 Delete NOTE 1.
99 7 Modification to 4.3.7, “Intentional and unintentional unmating of the vehicle
100 connector and/or the EV plug”
101 Delete the note.
102 8 Modification to 4.3.8.2, “Ventilation during supply of energy”
103 Delete NOTE 2.
As impacted by EN 50549-1:2019/A1:2023.
As impacted by EN 50549-2:2019/A1:2023.
104 9 Modification to 4.4.2, “Standard accessories”
105 Delete at the end of NOTE 1 “, US”.
106 Delete NOTE 2 and NOTE 3.
107 10 Modification to 4.4.4.1, “General”
108 Delete NOTE 3.
109 11 Modification to 4.4.4.2, “Electrical rating”
110 Delete NOTE 1.
111 12 Modification to 8.3.2, “Degrees of protection provided by basic interface
112 accessories”
113 Delete the note.
114 13 Modification to 8.4, “Temperature rise”
115 Delete NOTE 2 and NOTE 3.
116 14 Modification to 8.5, “Operation at low temperatures”
117 Delete at the end of NOTE 1 “US,”.
118 Delete NOTE 2.
119 15 Modification to 8.7.3.4, “Wiring of the neutral conductor”
120 Delete at the end of the note “US,”.
121 16 Modification to 8.7.4.4, “Cable management and storage means”
122 Delete the note.
123 17 Modification to 8.7.5, “Emergency switching or disconnect equipment (optional)”
124 Delete the note.
125 18 Modification to 8.9.3, “Residual current protective devices protecting connecting
126 points”
127 Delete NOTE 3 and NOTE 4.
128 19 Modification to 8.9.5, “Protective conductor”
129 Delete NOTE 1.
130 20 Modification to 8.9.6, “Insulation resistance”
131 Delete the note.
132 21 Modification to 8.10.1, “General”
133 Delete NOTE 2, NOTE 3, NOTE 4 and NOTE 5.
134 22 Modification to 9.1, “Installation manual”
135 Delete NOTE 1.
136 23 Modification to 9.3, “Marking”
137 Delete the note.
138 24 Modification to 10.3, “Minimum temperature functional test”
139 Delete at the end of NOTE 1 “US”.
140 Delete NOTE 2.
141 25 Modification to 10.13, “AC withstand voltage test”
142 Delete the note.
143 26 Modification to A.5.4, “Information on legacy EVs using simplified control pilot”
144 Delete at the end of NOTE 2 “US,”.
145 Delete NOTE 3.
146 27 Modification to Clause B.1, “Circuit diagram for vehicle couplers using a
147 connection switch for proximity detection without current coding”
148 Delete NOTE 5.
149 28 Modification to Clause B.2, “Circuit diagram for vehicle couplers using a
150 proximity contact for simultaneous proximity detection and current coding”
151 Delete NOTE 4.
152 29 Modification to D.1.1, “General”
153 Delete NOTE 1.
154 30 Modification to Clause F.2, “RPT enabling conditions”
155 In list item b), replace “IEC TS 62786-1” with “4.4 of EN 50549-1:2019, or EN 50549-2:2019”.
156 31 Modification to F.4.1, “General”
157 Replace the second paragraph with the following:p
158 “In general, EN 50549-1:2019 or EN 50549-2:2019 apply in Europe. These standards provide principles and
159 general technical requirements for distributed energy resources (DER) connected to the medium voltage (MV)
160 or low voltage (LV) distribution network.”
161 Replace NOTE 1 with the following:
162 “NOTE 1 Users of this document are expected to be aware that in most jurisdictions allowing grid interconnection of grid
163 parallel operation, there are national or local requirements that must be met, for example VDE-AR-N 4105 (DE).”
164 Delete NOTE 4 and NOTE 5.
165 32 Modification to F.4.2, “Frequency operating range and voltage operating range”
166 Replace the content of F.4.2 with the following:
167 “The Mode 3 EV charging station shall have the capability to operate in the frequency operating range
168 specified in EN 50549-1:2019, 4.4.2 or EN 50549-2:2019, 4.4.2, or the relevant local grid code.
169 The Mode 3 EV charging station shall have the capability to operate in the voltage operating range specified in
170 EN 50549-1:2019, 4.4.3 or EN 50549-2:2019, 4.4.3, or the relevant local grid code.
171 Compliance is either checked by testing according to EN 50549-10:2022, 5.2.1 (frequency operating range)
172 and 5.2.2 (voltage operating range), or the relevant local grid code.”
173 33 Modification to F.4.3.1, “General”
174 Replace the beginning of the first paragraph with the following:
175 “Equipment to fulfil the requirements specified in EN 50549-1:2019, 4.9 or EN 50549-2:2019, 4.9, or the
176 relevant local grid code for interface protection shall be provided by:”
177 Delete NOTE 2.
178 Replace the paragraph after Note 2 with the following:
179 “Compliance is either checked by tests according to EN 50549-10:2022, 5.8, or the relevant local grid code.”
180 Delete NOTE 3.
181 34 Modification to F.4.3.2, “General”
182 Replace the content of F.4.3.2 with the following:
183 “Overvoltage and undervoltage protection equipment, and overfrequency and underfrequency protection
184 equipment shall be provided according to EN 50549-1:2019 or EN 50549-2:2019, 4.9.3, or the relevant local
185 grid code.
186 The detection of abnormal voltage and frequency shall meet the requirements of single fault tolerance
187 according EN 50549-1:2019, 4.13, or the relevant local grid code.
188 Compliance is either checked by tests according to EN 50549-10:2022, 5.8 and 5.12, or the relevant local grid
189 code.”
190 35 Modification to F.4.3.3, “Interface switch”
191 Replace the content of F.4.3.3 with the following:
192 “Interface switches shall be provided by:
193 a) the Mode 3 EV charging station which incorporates an integrated interface switch, or
194 b) selecting and erecting the required switch as part of the electrical installation.
195 NOTE Some countries can sometimes specify which option to use.
196 The interface switch shall fulfil the requirements of EN 50549-1:2019 or EN 50549-2:2019, 4.3.2, or the
197 relevant local grid code.
198 The requirements of EN 50549-1:2019 or EN 50549-2:2019, 4.3.2, for the interface switch regarding the short-
199 circuit withstand capability are considered to be met, if the switching device complies with 8.7.6.3.2 for “type
200 B” coordination according to 10.6.
201 The interface switch shall meet the requirements of single fault tolerance according EN 50549-1:2019, 4.13, or
202 the relevant local grid code. The short-circuit withstand capability of the switching device, in addition with a
203 single-failure proof actuation of the switching-device, is considered to fulfil the requirements of EN 50549-
204 1:2019, 4.13.
205 Compliance is either checked by tests according to EN 50549-10:2022, 5.8 and 5.12, or the relevant local grid
206 code.
207 For the interface switch, 8.9.2 for the handling of welded contacts applies.
208 NOTE 3 The welding detection enables to monitor the switching device end of life.
209 In case the interface switch opens during a coupling session, the Mode 3 EV charging station shall go to
210 control pilot state x1 or E according to Annex A.
211 The interface switch shall be OVC III according to 8.2.1. OVC reduction is not allowed for the interface switch.”
212 36 Modification to F.4.3.5, “Digital input ports to the interface protection”
213 Replace the first paragraph with the following:
214 “If required by the system operator, the interface protection should have at least two configurable digital input
215 ports. These input ports can for example be used to allow transfer trip (see Note 2) or the switching to the
216 narrow frequency band (see Note 3) as defined in EN 50549-1:2019 or EN 50549-2:2019, 4.9.5 or the
217 relevant local grid code.”
218 Replace the last paragraph with the following:
219 “Compliance is either checked by testing according to EN 50549-1:2019 or EN 50549-2:2019, or the relevant
220 local grid code. “
221 37 Modificatio
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