Huawei FusionSolar SCharger-22KT-S0

Compatibility

Charger interfaces documented; Edge integration not established

Modbus TCP and OCPP 1.6 are named by Huawei. An exact supported register map or a verified backend-to-Edge handoff is still needed for integration.

SCharger-22KT-S0 three-phase socket version. Do not substitute the single-phase 7KS-S0 ratings or the newer Smart Charger SCharger-C generation. OCPP is residential-only without commercial billing. No endpoint defaults, register map, firmware minimum or ready-to-import Edge template are asserted.

Models

Specifications

The charger supplies AC power to the car; the car’s onboard charger determines how much it accepts. Its 22 kW rating does not guarantee that a particular vehicle charges at 22 kW, and OCPP support does not establish access to the vehicle’s battery state of charge.¹

Charging output

Up to 22 kW three-phase; adjustable 6–32 A. Minimum power is about 1.4 kW on one phase or 4.2 kW on three phases.¹

Supply and connector

400 V ±20%, 50/60 Hz ±1 Hz, TN or TT; Type 2 socket.¹

Communications

Wi-Fi or Ethernet; Modbus TCP and OCPP 1.6.¹

OCPP scope

Residential scenarios only; commercial billing capability is not supported.¹

Authentication

RFID ISO 14443-A, app or Bluetooth.¹

Enclosure

335 × 180 × 145 mm, 3.1 kg; IP54, IK10, wall-mounted.¹

Operating temperature

−35 to +50 °C at 16 A, or −35 to +40 °C at 32 A.¹

Idle consumption

Standby power below 6 W under the manufacturer’s specified conditions.¹

Interface

Documented measurements and integration boundaries for SCharger-22KT-S0.

• Start with charging status, session or cumulative energy and timestamps where the installed interface exposes them. Confirm the exact point list instead of assuming a universal Modbus map.
• A charger power limit is not a measurement of delivered power. Keep requested limits and measured energy separate.
• Record whether measurements cover one charging session or the lifetime total, and how counters behave after replacement or reset.
• Do not infer vehicle battery state of charge or billing approval from OCPP support.

Setup

1. Confirm the S0 identity

   Record SCharger-22KT-S0, firmware and the local market variant from the unit. Verify the installed mains arrangement and available current with the commissioning installer.

2. Choose the required function

   Separate ordinary charging, solar-surplus control and third-party monitoring. Solar modes and Next Trip depend on a compatible site controller and software; use the current regional system instructions.

3. Obtain the interface instructions

   Ask for Huawei’s supported S0 protocol configuration and register list for that firmware, or the approved residential OCPP backend process. The datasheet alone does not establish port, unit ID, address convention or write permissions.

4. Use a controlled network

   Connect over the documented Ethernet or Wi-Fi path and retain authorised commissioning access. Do not expose a prospective Modbus service directly to the internet.

5. Prove one measurement

   After the exact mapping is available, compare one live measurement with the FusionSolar display for the same charger and time. Confirm units, scaling and freshness before collecting a larger point set.

6. Keep charging control separate

   Do not alter charge-current limits or solar-control settings as part of a monitoring check. Record communication failures as unavailable data, not zero consumption.

Common questions

Can this charger support a commercial billing scheme over OCPP?

Huawei explicitly limits this model’s OCPP support to residential scenarios and excludes commercial billing capability. Choose equipment and a complete metering process approved for the intended commercial use.¹

Is there a ready-to-import Modbus map here?

No. Huawei names Modbus TCP, but the retained specifications do not establish exact registers, firmware requirements or decoder settings. Obtain the matching communication document before configuring a client.¹

Will an 11 kW car charge at 22 kW?

No. Actual AC charging power is limited by the vehicle, the available supply and charger configuration. Use the smallest applicable power limit in the charging-time calculator.¹

Why can the minimum solar charging power change?

At 6 A, one phase needs about 1.4 kW while three phases need about 4.2 kW. A supported phase-switching system and the actual vehicle determine how those thresholds are used.¹