SMA EV Charger Business EVCB-LB-3AC-ECC-10

AC EV charger

A commercial AC charging station with two Type 2 sockets, each rated up to 22 kW. This ECC variant provides metering compliant with German calibration law. Compare its two charging points, available site power and OCPP backend setup before choosing it for a workplace or shared car park.

SMA EV Charger Business EVCB-LB-3AC-ECC-10
  • OCPP 1.6J

AC EV charger

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Compatibility

Compatible with EpiSensor Edge over Modbus TCP

SMA's operating manual EVC-Business-BE-en-13, section 9.10, documents a Modbus TCP server for energy management systems on port 502 with the Open Modbus Charge Control Interface (OMCCI) register set, which Edge's Modbus TCP client reads. An EpiSensor ZEM-65 electricity monitor with CTs on the station's supply is a second route for energy, power and current per phase. The OCPP 1.6 JSON link stays with the charging backend; Edge does not speak OCPP.

Exact EVCB-LB-3AC-ECC-10 socket variant, material 204842-00.01; the cable model without LB and the non-ECC model differ. Site check: switch on Modbus TCP Server for energy management systems under Load management, select OMCCI, and take the register list from Documentation, Modbus Slave Registers, on the charger's own interface.

Connect it with

Route into Edge

When Modbus TCP Server for energy management systems is switched on with the OMCCI register set

  • Modbus
  • Edge
  • Platforms
AC EV charger
Interface
Gateway
Edge
Output
EV Charger Business EVCB-LB-3AC-ECC-10EV Charger Business LAN, Modbus TCP ports 502 and 503
Protected EthernetSegmented LAN
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeModbus client + register map
Customer platformMQTT · API · files
Modbus TCP
Protected Ethernet
Runs locally
Optional onward data
Under Load management, Modbus interface, switch on Modbus TCP Server for energy management systems on port 502 and select Open Modbus Charge Control Interface (OMCCI), then save and restart. The manual's SMA Data Manager setup reads the right charging point on port 502 and the left on port 503. Map readings from the Modbus Slave Registers list under Documentation on the charger's interface, and keep Edge read only so load management stays with the configured controller. The customer-platform output is optional; Edge remains the local system of record.

For energy, power and current per phase on the station's three-phase supply, both charging points together

  • Wired
  • Edge
  • Platforms
AC EV charger
Interface
Gateway
Edge
Output
EV Charger Business EVCB-LB-3AC-ECC-10EV Charger Business 230/400 V supply
ZEM-65 electricity monitorMeasures energy, power and current per phase on the station supply
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeEdge: energy, power and current per phase
Customer platformMQTT · API · files
CTs and voltage reference
EpiSensor wireless
Runs locally
Optional onward data
A qualified electrician fits the ZEM-65's 120 A split-core CTs on L1, L2 and L3 of the station's supply and connects its voltage reference. The ZEM-65 sends energy, power and current per phase over the EpiSensor wireless network to the Gateway, where Edge records them. One ZEM-65 on the supply measures both charging points together; the Modbus TCP route gives the split per point. The customer-platform output is optional; Edge remains the local system of record.

Models

Download
ModelsInterfaceRoute into Edge
EVCB-LB-3AC-ECC-10
  • Two Type 2 sockets
  • Ethernet
  • 4G
  • OCPP 1.6 JSON
Modbus TCP server with the OMCCI register set for Edge, or a ZEM-65 on the supply; OCPP to the chosen backend.
EVCB-3AC-ECC-10
  • Two 6 m Type 2 cables
  • German calibration-law metering
A different physical connector arrangement, not the socket model pictured here.
EVCB-LB-3AC-10Socket variant without ECC designationDo not transfer the ECC billing and metering approval to this ordering code.

Specifications

Two outlets rated at 22 kW do not establish that a site can supply 44 kW continuously. The connection, upstream protection, configured load management and each vehicle’s AC onboard charger determine simultaneous charging power.1

Charging points
Two Type 2 sockets; up to 22 kW and 32 A per point.1
Supply
230/400 V, 50 Hz; TN, TN-S and TT systems.1
Backend connection
Ethernet RJ45 and 4G; OCPP 1.6 JSON.1
Metering
ECC variant has integrated energy meters compliant with German calibration regulations. Billing also depends on the installed system and operating process.1
Enclosure
409 × 490 × 176 mm, 13.5 kg for the socket version; IP54 and IK08.1
Environment
Operating range −25 to +40 °C; wall mounting or optional charging stand.1
ISO 15118
PLC support is marked in preparation in this datasheet. Do not interpret that as enabled Plug & Charge or bidirectional charging.1
Energy management interface
Modbus TCP server for energy management systems on port 502, with the OMCCI register set; register list under Documentation on the charger interface.2

Interface

Documented measurements and integration boundaries for EV Charger Business EVCB-LB-3AC-ECC-10.

  • Keep charging-point identity and connector identity with every session and energy total. Two outlets are not one vehicle measurement.
  • Compare the backend’s session energy with the corresponding local meter for the same start and stop times.
  • Record status, timestamps and unavailable intervals alongside energy; an offline backend value is not proof that charging stopped.
  • For local dynamic load management, check each phase current and the configured building limit while both outlets charge. Compare the external meter with its local display. In that meter connection the charger is the Modbus TCP client; the charger's own Modbus TCP server, which Edge reads, is a separate setting.

Assessment

Exact EVCB-LB-3AC-ECC-10 socket variant, material 204842-00.01. The model without LB has cables and the non-ECC model has a different metering approval. The operating manual covers all four variants, so use its ECC instructions. Registers come from the charger's own Modbus Slave Registers list.

InteroperabilitySupported with conditions
The manual documents OCPP-J 1.6 backend configuration and a Modbus TCP server for energy management systems with the OMCCI register set; the register list is on the charger's own interface.2
AccuracySupported with conditions
The ECC socket variant includes calibration-law-compliant energy meters; distinguish both points and the complete billing arrangement.12
SecuritySupported with conditions
The manual documents HTTPS configuration and separate user roles. Confirm the backend transport and credentials for the installed firmware.2
ReliabilitySupported with conditions
The manual documents a configurable fallback load for communication failure, and derating to 11 kW above 60 °C with charging paused above 70 °C.2
RuggednessSupported with conditions
IP54, IK08 and the −25 to +40 °C operating range are specified for the installation conditions.1
ScalabilitySupported with conditions
Dynamic load management links several charge points over the network, including hierarchical load management, without extra controllers; site capacity sets the limit.2
LifecycleSupported with conditions
Firmware update and certificate handling are on the charger's interface, and the manual documents device replacement; record firmware and configuration.2

Setup

  1. Identify the exact unit

    Read the EVCB-LB-3AC-ECC-10 order code and installed firmware. Keep the two meter identities and charging-point identities in the installation record.

  2. Establish the electrical limit

    Use operating manual EVC-Business-BE-en-13, sections 9.5.6 and 9.7. Have the installer check both points, upstream protection and phase rotation. Under Load management, select the DLM Master with internal DLM slave and set the mains current limit, safety margin and fallback load separately for L1/L2/L3. Enable external metering when other building loads share the supply; select the installed meter from the supported list, such as Janitza UMG 512/96 PRO or Siemens 7KM2200 via Modbus TCP on port 502. The manual specifies that fallback value 9999 switches off all charging points on failure. Check the configured fallback and both outlets during commissioning; 22 kW is the maximum per point, not a site allocation.

  3. Configure the network

    Use the documented installer access and a managed Ethernet network, or the documented cellular setup with an activated SIM. Restrict configuration access to authorised users.

  4. Register with the backend

    In Backend, select Ethernet for the Ethernet path and confirm OCPP ChargeBoxIdentity. SMA says the ECC identity is already set. Select OCPP-J 1.6 and enter the URL supplied for this site by the backend operator. The manual’s sample provider URL is not a universal endpoint.

  5. Verify acceptance and both outlets

    Save and restart as instructed. Check the dashboard’s backend status, then confirm both charging points are recognised by the backend. Run a known session on each and compare identity, timestamps and energy with the local meter.

  6. Connect Edge over Modbus TCP

    Switch on the Modbus TCP server with the OMCCI register set as in section 9.10 and add each charging point to Edge as a Modbus TCP device on its port. Compare each point's energy with its local meter display. Agree units, connector mapping and missing-data handling.

Common questions

Can both vehicles always charge at 22 kW?
No. Each point supports up to 22 kW, but site capacity, load-management settings and each vehicle’s onboard charger can reduce the actual power.1
Is this the cable model?
No. EVCB-LB-3AC-ECC-10 has two Type 2 sockets. EVCB-3AC-ECC-10, without LB, has two 6 m cables.1
How does Edge read this charger?
Over Modbus TCP. Section 9.10 of the operating manual documents a Modbus TCP server for energy management systems with the OMCCI register set, separate from the OCPP backend link and from the external-meter connection used for load management. Edge does not speak OCPP.2
Does the meter alone make every billing installation compliant?
No. The ECC hardware is intended for German calibration-law use. The installation, seals, data verification and billing process must also meet the applicable requirements.2

Sources

  1. EV Charger Business datasheet: ECC cable and socket variants (opens in a new tab) (PDF) SMA
  2. EV Charger Business operating manual EVC-Business-BE-en-13 (opens in a new tab) (PDF) SMA

Further reading

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