IEC PAS 61851-1-1:2023

IEC PAS 61851-1-1 ®
Edition 1.0 2023-02
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle conductive charging system –
Part 1-1: Specific requirements for electric vehicle conductive charging system
using type 4 vehicle coupler
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IEC PAS 61851-1-1 ®
Edition 1.0 2023-02
PUBLICLY AVAILABLE
SPECIFICATION
Electric vehicle conductive charging system –

Part 1-1: Specific requirements for electric vehicle conductive charging system

using type 4 vehicle coupler
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 43.120 ISBN 978-2-8322-6227-6

– 2 – IEC PAS 61851-1-1:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 6
5 Classification . 6
6 Charging modes and functions . 6
7 Communications . 7
8 Protection against electric shock . 7
9 Conductive electrical interface requirements . 7
10 Requirements for adaptors . 7
11 Cable assembly requirements . 7
12 EV supply equipment constructional requirements and tests . 7
13 Overload and short-circuit protection . 7
14 Automatic reclosing of protective devices . 7
15 Emergency switching or disconnect (optional) . 7
16 Marking and instructions . 7
Annex A (normative) Control pilot function through a control pilot circuit using a PWM
signal and a control pilot wire . 8
Annex B (normative) Proximity detection and cable current coding circuits for the
basic interface . 9
Annex C (informative) Examples of circuit diagrams for a basic and universal vehicle
couplers . 11
Bibliography . 13

Figure B.3 – Equivalent circuit diagram for vehicle couplers using an auxiliary switch
and current coding resistor . 9
Figure C.7 – Example of Mode 3 case C using proximity switch and resistor coding . 12

Table B.3 – Component value proximity circuit with current coding . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC VEHICLE CONDUCTIVE CHARGING SYSTEM –

Part 1-1: Specific requirements for electric vehicle
conductive charging system using type 4 vehicle coupler

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