UNE-EN 61851-23-2015 PDF

Full title and description

STB UNE-EN 61851-23-2015 — Electric vehicle conductive charging system — Part 23: DC electric vehicle charging station. This national adoption (UNE-EN) reproduces the European/IEC technical requirements for d.c. EV charging stations (DC chargers) including safety, electrical interface, charging control and specific requirements for vehicle couplers, charging cables and EVSE equipment.

Abstract

This standard specifies safety and performance requirements for conductive DC electric vehicle charging stations with an input rating up to medium/low voltage ranges covered by IEC/EN practice. It covers general system requirements, protection against electric shock, connection and coupler requirements, charging cable assembly, EVSE requirements and communication/control interfaces relevant to DC charging (including normative annexes describing system variants and typical configurations).

General information

• Status: Published (national adoption of the EN/IEC document).
• Publication date: 2015 (UNE-EN national adoption of EN 61851-23:2014; EN/IEC base publication date: 11 March 2014).
• Publisher: STB (national designation) — based on the European CENELEC/IEC document (original international publisher: IEC / CENELEC).
• ICS / categories: 43.120 — Electric road vehicles.
• Edition / version: National adoption of EN 61851-23:2014 (IEC 61851-23 Edition 1.0). Corrigenda published subsequently for the EN version (corrigendum AC:2016).
• Number of pages: 159 pages (as per the IEC/EN edition).

Scope

The standard gives requirements for d.c. electric vehicle charging stations (DC chargers) intended for conductive connection to vehicles. It addresses ratings of supply voltages, general system interfaces, protection against electric shock (including single-fault considerations), requirements for vehicle couplers, charging cable assemblies, EVSE equipment, and control/communication principles between vehicle and charger. The document includes normative annexes for different system types (system A, B, C / combined charging), informative annexes with typical configurations and examples.

Key topics and requirements

• General electrical and mechanical requirements for d.c. EV charging stations.
• Protection against electric shock, leakage and capacitance-energy considerations under fault conditions.
• Ratings and limits for supply voltages and voltage dynamics.
• Requirements for vehicle couplers, charging cable assemblies and connectors (including combined charging systems).
• EVSE functional requirements and control of DC power output (regulated and non‑regulated stations).
• Principles and requirements for control/communication between vehicle and DC charging station; reference to IEC 61851-24 for digital communication details.
• Normative annexes describing system A/B/C configurations and recommended parameters for safety/security systems.

Typical use and users

Manufacturers and designers of DC fast-charging equipment, EVSE integrators, charging-station installers and commissioning engineers, conformity assessment and testing laboratories, regulatory bodies and safety authorities, and fleet operators deploying fast-charging infrastructure. The standard is used to design, test and certify DC charging stations and to ensure interoperability and safety with vehicles and grid interfaces.

Related standards

Key related documents include IEC/EN 61851-1 (general requirements for EV conductive charging systems), IEC/EN 61851-24 (digital communication for DC charging control), ISO 17409 (safety for electrical connection of EVs), and IEC 60038 (standard voltages). National implementations and corrigenda (e.g., EN 61851-23:2014/AC:2016) are also relevant.

Keywords

DC charging, electric vehicle supply equipment (EVSE), conductive charging, DC charger, vehicle coupler, charging cable assembly, protection against electric shock, IEC 61851, EN 61851, UNE-EN, combined charging system (CCS).

FAQ

Q: What is this standard?

A: It is the national (UNE-EN / STB) adoption of the European / IEC standard IEC/EN 61851-23 that defines requirements for DC electric vehicle charging stations (DC chargers).

Q: What does it cover?

A: Safety and performance requirements for conductive DC charging stations, including electrical ratings, protection against electric shock, connector and cable requirements, EVSE equipment requirements, and vehicle–station control/communication principles; the standard contains normative annexes for several DC system variants.

Q: Who typically uses it?

A: EVSE manufacturers, test houses, installers, system integrators, regulators, and fleet operators responsible for procurement, installation, testing and certification of DC fast-charging infrastructure.

Q: Is it current or superseded?

A: The UNE-EN adoption reflects EN/IEC 61851-23:2014 (national implementation around 2015). A newer edition of the IEC standard (IEC 61851-23:2023) was published in December 2023; users should check for the latest national adoption or replacement texts and any corrigenda (for EN 61851-23 a corrigendum AC:2016 exists). If compliance or certification is required, verify whether your national body has updated or withdrawn the 2015 adoption in favor of the 2023 edition.

Q: Is it part of a series?

A: Yes — it is Part 23 of the IEC/EN 61851 series (Electric vehicle conductive charging system). Other parts include Part 1 (general requirements) and Part 24 (communication), among others; compliance typically requires reading Part 23 together with Part 1 and the communication-related parts as applicable.

Q: What are the key keywords?

A: DC charging, EVSE, DC charger, conductive charging, vehicle coupler, charging cable, protection against electric shock, IEC 61851, EN 61851, UNE-EN.