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EV charging glossary

Industry jargon

Megawatt Charging System

Also called MCS

The Megawatt Charging System, or MCS, is a high-power DC charging system developed for heavy-duty electric vehicles using the MCS coupler.

It is aimed at vehicles that need much higher charging power than conventional passenger-car charging systems. IEC TS 63379:2026 specifies the MCS vehicle connector, vehicle inlet and cable assembly.

IEC 61851-23-3:2026 covers the associated DC EV supply equipment. MCS charging also uses digital communication between the EV and EVSE.

IEC 61851-23-3 points to ISO 15118-10 and ISO 15118-20 for communication used to control energy transfer.

Read more Fleet depot charging

Related terms

IEC TS 63379

IEC 61851
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