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EV charging glossary

Industry jargon

IEC 61851

IEC 61851 is an international standards family covering conductive electric vehicle charging systems. IEC 61851-1 sets general requirements for EV supply equipment, including operating conditions, the EV-to-EVSE connection and electrical safety. Other parts of the family address specific charging equipment and use cases. That includes DC charging equipment and, from 2026, a dedicated part for Megawatt Charging System EVSE. IEC 61851 works alongside connector standards such as IEC 62196 and vehicle-to-EVSE communication standards such as ISO 15118.

Related terms

IEC 62196

ISO 15118

EVSE
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