SIST EN IEC 61851-23:2026/A11:2026

SIST EN IEC 61851-23:2026/A11:2026 is a CLC amendment to the European standard for DC electric vehicle supply equipment. It changes Annex BB in EN IEC 61851-23 so that, for Europe, the annex is treated as informative and marked as not applicable in Europe. Engineers, manufacturers, and conformity teams use it together with the base standard when applying the European version of the document.

What does SIST EN IEC 61851-23:2026/A11:2026 specify?

SIST EN IEC 61851-23:2026/A11:2026 specifies a single European modification to EN IEC 61851-23, Part 23. The document is short and its body consists of one clause that targets Annex BB, “EV supply equipment of system B”.

What are the key requirements of SIST EN IEC 61851-23:2026/A11:2026?

The only technical change in SIST EN IEC 61851-23:2026/A11:2026 is the treatment of Annex BB. Clause 1 changes Annex BB in the base standard, so readers should no longer treat it as a mandatory annex in the European context.

• Annex BB is modified in Clause 1. In practice, anyone using EN IEC 61851-23 in Europe needs to apply this amendment when reading the base standard.
• Annex BB is identified as “EV supply equipment of system B”. That tells users exactly which part of the base standard is affected, which matters when checking design or test obligations.
• The amendment makes Annex BB informative rather than normative. That means the annex is for reference or explanation, not a source of mandatory requirements in Europe.
• The text adds a note that the annex is not applicable in Europe. For procurement, design reviews, and conformity assessment, that is the key practical signal: do not use Annex BB as a required European rule.
• The European foreword shows the document is part of the CENELEC process. It records enquiry status and the proposed dates for announcement, national publication, and withdrawal of conflicting standards, which matters for implementation planning.

What terms does SIST EN IEC 61851-23:2026/A11:2026 define?

• DC - Direct current, the electrical form used by DC electric vehicle supply equipment.
• EV supply equipment - The charging equipment covered by the standard for supplying energy to an electric vehicle.
• Annex BB - The annex in the base standard that this amendment modifies.
• Normative - Mandatory text that forms part of the required standard.
• Informative - Non-mandatory text provided for guidance or background.
• CLC/TC 69X - The CENELEC technical committee responsible for electrical systems for electric road vehicles.

Who uses SIST EN IEC 61851-23:2026/A11:2026?

SIST EN IEC 61851-23:2026/A11:2026 is used by people working with DC charging equipment for electric road vehicles. That includes equipment manufacturers, system designers, test laboratories, certification bodies, and buyers who need to know whether Annex BB applies in the European version of the standard.

It is also relevant to standards teams and compliance managers who maintain technical files or internal specifications. For them, the amendment is important because it changes how a specific annex is treated during design review, testing, and conformity assessment.

What changed in SIST EN IEC 61851-23:2026/A11:2026 from the previous edition?

SIST EN IEC 61851-23:2026/A11:2026 modifies EN IEC 61851-23 Ed.2 by changing Annex BB. The amendment makes Annex BB informative instead of normative and adds the note that the annex is not applicable in Europe.

Which standards are used with SIST EN IEC 61851-23:2026/A11:2026?

• EN IEC 61851-23 Ed.2 - The base European standard for DC electric vehicle supply equipment; this amendment updates its Annex BB.

What does the SIST EN IEC 61851-23:2026/A11:2026 document contain?

SIST EN IEC 61851-23:2026/A11:2026 is a short amendment document rather than a full technical standard. It contains a European foreword and one clause that changes Annex BB of the base standard. The foreword records the responsible committee, the enquiry stage, and the proposed national adoption timetable. The body of the document gives the exact modification to Annex BB, which is the part readers need when checking the European status of that annex.