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http://standards.sae.org/J1772_201710

SURFACE VEHICLE

STANDARD

J1772™ OCT2017

Issued 1996-01

Revised 2017-10

Supersedin

J1772 FEB2016

SAE Electric Vehicle and Plug in Hybrid Electric Vehicle Conductive Charge Coupler

RATIONALE

The SAE J1772 document has been updated to refine the language of the standard, correct errors found in the previous

version and to reflect the addition of higher power capacity DC charging.

FOREWORD

Energy stored in a battery provides power for an Electric Vehicle (EV) or Plug In Hybrid Electric Vehicles (PHEV). Conductive

charging is a method for connecting the electric power supply network to the EV/PHEV for the purpose of transferring energy

to charge the battery and operate other vehicle electrical systems, establishing a reliable equipment grounding path, and

exchanging control information between the EV/PHEV and the supply equipment. This document describes the electrical

and physical interfaces between the EV/PHEV and supply equipment to facilitate conductive charging. Functional and

performance requirements for the EV/PHEV and supply equipment are also specified. This document contains 116 pages,

including this page, and should not be used as a design tool if any of the pages are missing.

NOTE: This SAE Standard is intended as a guide toward standard practice and is subject to change in order to harmonize

with international standards and to keep pace with experience and technical advances.

TABLE OF CONTENTS

 SCOPE .......................................................................................................................................................... 6

 REFERENCES .............................................................................................................................................. 6

2.1 Applicable Documents .................................................................................................................................. 6

2.1.1 SAE Publications ........................................................................................................................................... 6

2.1.2 Canadian Standards Association Publication ............................................................................................... 6

2.1.3 Federal Communication Commission Publications ...................................................................................... 6

2.1.4 International Electrotechnical Commission Publication ................................................................................ 7

2.1.5 ISO Publications ............................................................................................................................................ 7

2.1.6 National Fire Protection Association Publication .......................................................................................... 7

2.1.7 Underwriters Laboratories Inc. Publications ................................................................................................. 7

2.2 Related Publications ..................................................................................................................................... 8

2.2.1 SAE Publications ........................................................................................................................................... 8

2.2.2 International Electrotechnical Commission Publications .............................................................................. 8

2.2.3 Underwriters Laboratories Inc. Publications ................................................................................................. 9

 DEFINITIONS ............................................................................................................................................... 9

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SAE INTERNATIONAL J1772™ OCT2017 Page 2 of 116

4. GENERAL CONDUCTIVE CHARGING ...................................................................................................... 11

4.1 Electrical Ratings ........................................................................................................................................ 12

4.2 Charging Control and Information ............................................................................................................... 12

4.2.1 Control Pilot ................................................................................................................................................. 12

4.2.2 Proximity Detection ..................................................................................................................................... 18

4.3 Digital Data Transfer ................................................................................................................................... 21

4.4 EVSE and EV/PHEV Charging Sequence, Timing and Response ............................................................. 21

4.5 EV/PHEV Requirements ............................................................................................................................. 21

4.5.1 Environmental ............................................................................................................................................. 21

4.5.2 Vehicle Movement with Mated Coupler ...................................................................................................... 21

4.5.3 Control Pilot Continuity ................................................................................................................................ 21

4.6 EVSE Requirements ................................................................................................................................... 21

4.6.1 EVSE EMC Requirements .......................................................................................................................... 21

4.6.2 Installation Requirements............................................................................................................................ 23

4.6.3 General Product Standards ........................................................................................................................ 23

4.6.4 Personnel Protection System ...................................................................................................................... 23

4.6.5 AC Present Indicator ................................................................................................................................... 23

4.6.6 Conductor Cord Requirements ................................................................................................................... 23

4.7 Charge Coupler Requirements ................................................................................................................... 23

4.7.1 Ergonomic Requirements............................................................................................................................ 23

4.7.2 Ease of Use ................................................................................................................................................. 23

4.7.3 Indexing ....................................................................................................................................................... 23

4.7.4 Tactile Feel .................................................................................................................................................. 23

4.7.5 Latching ....................................................................................................................................................... 24

4.7.6 Locking Function ......................................................................................................................................... 24

4.7.7 Safety Requirements ................................................................................................................................... 24

4.7.8 Performance Requirements ........................................................................................................................ 24

4.7.9 Environmental Requirements ...................................................................................................................... 24

4.7.10 General Coupler Physical Description ........................................................................................................ 25

4.7.11 Contact Sequencing .................................................................................................................................... 25

4.7.12 Charge Coupler Optional Markings ............................................................................................................. 25

4.8 Vehicle Inlet ................................................................................................................................................. 25

4.8.1 Physical Dimensions ................................................................................................................................... 25

4.8.2 Inlet Access Zone ........................................................................................................................................ 25

4.8.3 Alignment .................................................................................................................................................... 25

4.8.4 Isolation ....................................................................................................................................................... 25

4.8.5 Exposure of Contacts .................................................................................................................................. 25

4.8.6 Sharp Edges ............................................................................................................................................... 26

4.8.7 Environmental Considerations .................................................................................................................... 26

4.8.8 Mechanical Requirements .......................................................................................................................... 26

4.8.9 Sealing Requirements ................................................................................................................................. 26

4.9 Vehicle Connector ....................................................................................................................................... 26

4.9.1 Physical Dimensions ................................................................................................................................... 26

4.9.2 Exposure of Contacts .................................................................................................................................. 26

4.9.3 Sharp Edges ............................................................................................................................................... 27

4.9.4 Impact Resistance ....................................................................................................................................... 27

4.9.5 Vehicle Drive-Over ...................................................................................................................................... 27

5. AC CHARGING ........................................................................................................................................... 27

5.1 Electrical Ratings ........................................................................................................................................ 30

5.2 Charging Control and Information ............................................................................................................... 30

5.2.1 Control Pilot ................................................................................................................................................. 30

5.2.2 Proximity Detection ..................................................................................................................................... 30

5.3 Digital Data Transfer ................................................................................................................................... 31

5.4 EVSE and EV/PHEV Charging Sequence, Timing and Response ............................................................. 31

5.5 EV/PHEV Requirements ............................................................................................................................. 31

5.5.1 EV/PHEV Cable Ampacity Coordination ..................................................................................................... 31

5.5.2 Coupler Disconnect Current Limit ............................................................................................................... 31

5.6 EVSE Requirements ................................................................................................................................... 31

5.6.1 Radiated Immunity ...................................................................................................................................... 32

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SAE INTERNATIONAL J1772™ OCT2017 Page 3 of 116

5.7 Charge Coupler Requirements ................................................................................................................... 33

5.8 Vehicle Inlet ................................................................................................................................................. 33

5.9 Vehicle Connector ....................................................................................................................................... 33

 DC CHARGING ........................................................................................................................................... 33

6.1 Electrical Ratings ........................................................................................................................................ 36

6.2 Charging Control and Information ............................................................................................................... 37

6.2.1 Control Pilot ................................................................................................................................................. 37

6.2.2 Proximity Detection ..................................................................................................................................... 37

6.3 EVSE and EV/PHEV Charging Sequence, Timing and Response ............................................................. 37

6.3.1 EVSE and EV/PHEV Message Table ......................................................................................................... 37

6.4 EV/PHEV Requirements ............................................................................................................................. 38

6.4.1 Lock Function Diagnostics .......................................................................................................................... 38

6.4.2 Manual Lock Release .................................................................................................................................. 38

6.4.3 EV/PHEV Isolation Monitoring .................................................................................................................... 38

6.4.4 EV/PHEV Maximum Y Capacitance ........................................................................................................... 38

6.4.5 Loss of Communications ............................................................................................................................. 39

6.5 EVSE Requirements ................................................................................................................................... 39

6.5.1 EVSE Electromagnetic Emissions .............................................................................................................. 39

6.5.2 Installation Requirements............................................................................................................................ 39

6.5.3 General Product Standards ........................................................................................................................ 39

6.5.4 Personnel Protection System ...................................................................................................................... 39

6.5.5 Maximum EVSE Output Y Capacitance ...................................................................................................... 40

6.5.6 AC Present Indicator ................................................................................................................................... 40

6.5.7 Conductor Cord Requirements ................................................................................................................... 40

6.5.8 Diagnostics Using High Voltage or High Energy ........................................................................................ 41

6.5.9 Vehicle Connector Interlock and Latch Diagnostics ................................................................................... 41

6.5.10 DC Output Current Measurement Accuracy ............................................................................................... 41

6.5.11 DC Output Voltage Measurement Accuracy ............................................................................................... 41

6.5.12 DC Output Current Regulation .................................................................................................................... 41

6.5.13 DC Output Descending Current Output Slew Rate ..................................................................................... 41

6.5.14 DC Output Current Ripple ........................................................................................................................... 41

6.5.15 DC Output Voltage Ripple - No Load Voltage Regulation .......................................................................... 41

6.5.16 DC Output Voltage Transient ...................................................................................................................... 42

6.5.17 DC Output Current Overshoot Time ........................................................................................................... 42

6.5.18 DC Output Inrush ........................................................................................................................................ 42

6.5.19 DC Output Short Circuit Test ...................................................................................................................... 42

6.5.20 Loss of Communications ............................................................................................................................. 42

6.5.21 Connector Contact Area Temperature Monitor ........................................................................................... 42

6.5.22 Protection Against Unintended Reverse Power Flow ................................................................................. 42

6.5.23 User Initiated Charge Termination .............................................................................................................. 42

6.5.24 Available Current PWM Slew Rate Changes .............................................................................................. 42

6.5.25 DC Output Voltage Overshoot Time ........................................................................................................... 42

6.5.26 Voltage Deviation During Pre-Charge ......................................................................................................... 43

6.5.27 Maximum Voltage Slew Rate in Normal Operation .................................................................................... 43

6.6 Charge Coupler Requirements ................................................................................................................... 43

6.6.1 Retention Force ........................................................................................................................................... 43

6.6.2 Breaking Capacity ....................................................................................................................................... 43

6.7 Vehicle Inlet ................................................................................................................................................. 44

6.7.1 DC Level 1 .................................................................................................................................................. 44

6.7.2 DC Level 2 .................................................................................................................................................. 44

6.8 Vehicle Connector ....................................................................................................................................... 44

6.8.1 DC Level 1 .................................................................................................................................................. 44

6.8.2 DC Level 2 .................................................................................................................................................. 44

6.8.3 Connector Contact Area Temperature Monitor ........................................................................................... 44

7. NOTES ........................................................................................................................................................ 44

7.1 Revision Indicator ........................................................................................................................................ 44

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SAE INTERNATIONAL J1772™ OCT2017 Page 4 of 116

APPENDIX A CHARGE COUPLER DIMENSIONAL REQUIREMENTS (NON LOCKABLE) ........................................... 45

APPENDIX B CHARGE COUPLER DIMENSIONAL REQUIREMENTS (LOCKABLE) .................................................... 52

APPENDIX C DC LEVEL 2 COUPLER ............................................................................................................................. 55

APPENDIX D VEHICLE INLET LOCK FUNCTION ZONE DEFINITION .......................................................................... 59

APPENDIX E EVSE AND EV/PHEV SEQUENCE AND RESPONSE TIME SPECIFICATIONS ..................................... 60

APPENDIX F DC EVSE AND EV/PHEV SEQUENCE AND RESPONSE TIME SPECIFICATIONS ............................... 67

APPENDIX G MESSAGE TABLE ...................................................................................................................................... 86

APPENDIX H DRAFT COUPLER PERFORMANCE CERTIFICATION TEST PROCEDURES - ..................................... 88

APPENDIX I DC LEVEL 1 AND LEVEL 2 COMBINATIONS FOR PEVS & EVSES - INFORMATIVE ........................... 95

APPENDIX J DC Y CAPACITANCE REQUIREMENT DERIVATION - INFORMATIVE .................................................. 99

APPENDIX K WAKEUP OF CERTAIN LEGACY VEHICLES (INFORMATIVE) ............................................................. 103

APPENDIX L HISTORY EVSE/VEHICLE INTERFACE .................................................................................................. 104

APPENDIX M AC LEVEL 3 CHARGING.......................................................................................................................... 107

APPENDIX N PREVIOUS CHARGE COUPLER DESIGNS ........................................................................................... 110

APPENDIX O COMPATIBILITY BETWEEN HIGH CAPACITY EVSES AND CERTAIN LEGACY VEHICLES………. 114

APPENDIX P MAXIMUM OUTLINE OF LATCH (INFORMATIVE)…………………………………………………………. 115

FIGURE 1 CONTROL PILOT CIRCUIT ....................................................................................................................... 12



FIGURE 2 CONTROL PILOT EQUIVALENT CIRCUIT ................................................................................................ 13

FIGURE 3 SUPPLY CURRENT RATING VS. PILOT CIRCUIT DUTY CYCLE ........................................................... 17

FIGURE 4 PROXIMITY DETECTION CIRCUIT ........................................................................................................... 19

FIGURE 5 AC CONDUCTIVE EV/PHEV CHARGING SYSTEM ARCHITECTURE .................................................... 27

FIGURE 6 AC LEVEL 1 AND AC LEVEL 2 CONDUCTIVE COUPLER CONTACT INTERFACE FUNCTIONS ........ 28

FIGURE 7 AC LEVEL 1 SYSTEM CONFIGURATION FIGURE ILLUSTRATES VEHICLE CHARGING .................... 29

FIGURE 8 AC LEVEL 2 SYSTEM CONFIGURATION FIGURE ILLUSTRATES VEHICLE CHARGING .................... 30

FIGURE 9 RADIATED IMMUNITY TEST SETUP ........................................................................................................ 32

FIGURE 10 DC CONDUCTIVE EV/PHEV CHARGING SYSTEM ARCHITECTURE .................................................... 34

FIGURE 11 DC LEVEL 1 AND DC LEVEL 2 CONDUCTIVE COUPLER CONTACT INTERFACE FUNCTIONS ........ 34

FIGURE 12 DC LEVEL 1 SYSTEM CONFIGURATION FIGURE ILLUSTRATES VEHICLE NOT CHARGING ........... 35

FIGURE 13 DC LEVEL 2 SYSTEM CONFIGURATION FIGURE ILLUSTRATES VEHICLE NOT CHARGING ........... 36

FIGURE 14 COMBINED Y CAPACITANCE LIMIT ........................................................................................................ 38

FIGURE 15 CHARGE START SEQUENCE – EVSE CAPABLE OF SUPPORTING VENTILATION ........................... 64

FIGURE 16 CHARGE START SEQUENCE – EVSE DOES NOT SUPPORT VENTILATION ...................................... 65

FIGURE 17 CHARGE TERMINATION SEQUENCE ...................................................................................................... 66

FIGURE 18 CHARGE COUPLER SET UP .................................................................................................................... 90

FIGURE 19 TEMPERATURE RISE AND RESISTANCE MEASUREMENT SET UP ................................................... 91

FIGURE 20 APPLYING EXTERNAL LOAD USING HAND HELD FORCE GAUGE ..................................................... 92

FIGURE 21 VOLTAGE DROP JUDGMENT CRITERIA ................................................................................................. 92

FIGURE 22 DC LEVEL 1 CONNECTOR ON EVSE AND DC LEVEL 2 COMBO INLET ON VEHICLE ....................... 96

FIGURE 23 DC LEVEL 2 COMBO CONNECTOR ON EVSE AND DC LEVEL 1 STANDARD INLET ON VEHICLE .. 97

FIGURE 24 DC LEVEL 1 AND LEVEL 2 EVSE ............................................................................................................. 98

FIGURE 25 ENERGY LIMIT VS. EQUIVALENT RMS DISCHARGE CURRENT ........................................................ 102

FIGURE 26 CAPACITANCE LIMIT VS. VOLTAGE ..................................................................................................... 102

FIGURE 27 TYPICAL PILOT LINE CIRCUITRY .......................................................................................................... 104

FIGURE 28 AC LEVEL 3 AND AC LEVEL 2 SYSTEM CONFIGURATION ................................................................. 109



FIGURE 29 CONTACT INTERFACE SPACING AND CONTROL DIMENSIONS ....................................................... 112

FIGURE 30 CONNECTOR PHYSICAL CONTROL DIMENSIONS ............................................................................. 113

FIGURE 31 VEHICLE INLET PHYSICAL CONTROL DIMENSIONS .......................................................................... 114

FIGURE 32 VEHICLE INLET INTERFACE ACCESS ZONE ....................................................................................... 115

FIGURE 33 COUPLER INTERFACE CONTACT SEQUENCING ............................................................................... 115

FIGURE 34 TIMING DIAGRAM OF OPTIONAL TRANSITIONS ................................................................................. 116

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SAE INTERNATIONAL J1772™ OCT2017 Page 5 of 116

TABLE 1 DEFINITION OF VEHICLE / EVSE STATES.............................................................................................. 13

TABLE 2 CONTROL PILOT STATE VOLTAGE RANGE REFERENCE FROM MATED CHARGE

COUPLER INTERFACE ............................................................................................................................. 14

TABLE 3 EVSE CONTROL PILOT CIRCUIT PARAMETERS (SEE FIGURE 4.2) ................................................... 14

TABLE 4 EV/PHEV CONTROL PILOT CIRCUIT PARAMETERS (SEE FIGURE 2) ................................................ 15

TABLE 5 CONTROL PILOT DUTY CYCLE DEFINITION .......................................................................................... 17

TABLE 6 PROXIMITY DETECTION CIRCUIT COMPONENT PARAMETERS (SEE FIGURE 4) ............................ 19

TABLE 7 PROXIMITY DETECTION CIRCUIT VOLTAGE PARAMETERS

(1)(2)(3)

(SEE FIGURE 4)

FROM MATED CHARGE COUPLER INTERFACE ................................................................................... 20

TABLE 8 AC LEVEL 1 AND AC LEVEL 2 CONDUCTIVE COUPLER CONTACT FUNCTIONS .............................. 28

TABLE 9 AC CHARGING ELECTRICAL RATINGS (NORTH AMERICA) ................................................................. 30

TABLE 10 CONTACT SIZE ELECTRICAL RATINGS ................................................................................................. 33

TABLE 11 DC LEVEL 1 AND DC LEVEL 2 CONDUCTIVE COUPLER CONTACT FUNCTIONS ............................. 35

TABLE 12 DC CHARGING ELECTRICAL RATINGS (NORTH AMERICA) ................................................................ 36

TABLE 13 CONTACT SIZE AND ELECTRICAL RATINGS ......................................................................................... 43

TABLE 14 EVSE AND EV/PHEV RESPONSE TIME SPECIFICATIONS ................................................................... 61

TABLE 15 PILOT LINE VOLTAGE RANGES ............................................................................................................ 105

TABLE 16 ORIGINAL PILOT VOLTAGE SPECIFICATION (REFERENCE) ............................................................. 106

TABLE 17 CHARGING MODE CHARACTERISTICS ................................................................................................ 107

TABLE 18 EVSE CONTROL PILOT PARAMETERS ................................................................................................. 108

TABLE 19 VEHICLE CHARGE REQUEST PARAMETERS ...................................................................................... 108

TABLE 20 EVSE RESPONSE PARAMETERS .......................................................................................................... 108

TABLE 21 CURRENT LIMIT EQUATION .................................................................................................................. 108

TABLE 22 CURRENT LIMIT SCALE.......................................................................................................................... 109

TABLE 23 VEHICLE INLET CONTACT REQUIREMENTS ....................................................................................... 110

TABLE 24 CONNECTOR CONTACT REQUIREMENTS .......................................................................................... 111

TABLE 25 CONTACT SIZE AND CURRENT RATING .............................................................................................. 111

TABLE 26 COUPLER INTERFACE CONTACT SEQUENCING EVENTS ................................................................ 114

TABLE 27 OPTIONAL TRANSITION DESCRIPTIONS ............................................................................................. 116

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