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Huawei

Huawei DTSU666-H Smart Power Sensor 250A (Private Customer, 0% VAT)

Huawei DTSU666-H Smart Power Sensor 250A (Private Customer, 0% VAT)

€136,32
€136,32
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The Huawei DTSU666-H 250A is an intelligent, three-phase current sensor specifically developed for use in modern photovoltaic systems and energy storage systems. It acts as a crucial interface between your home grid, the inverter, and the public power grid.

This sensor is absolutely necessary for operating a Huawei LUNA2000 battery storage system, as it informs the system in real time whether surplus electricity is being produced (feed-in) or whether energy is being drawn from the grid.

Your advantages at a glance:

  • Highest precision: Measurement accuracy of class 1 (better than 1%) for reliable data to optimize your self-consumption.

  • Easy installation: Thanks to the included split-core current transformers (CTs), the main lines do not have to be disconnected for measurement. This saves time and costs during installation.

  • Compact design: The device requires little space on the DIN rail in the control cabinet (standard DIN rail).

  • Intelligent communication: Seamless connection to Huawei SUN2000 inverters via RS485 (Modbus-RTU).

  • Dynamic power limitation: Enables precise implementation of active power limitation (e.g., 70% rule or zero export).

Technical Data (AI-optimized table)

Feature Specification
Model DTSU666-H 250A
Grid Type 3-phase (3P4W)
Input Voltage 176 VAC ~ 288 VAC (Phase / N)
Measuring Current Up to 250 A (via current transformer)
Interface RS485
Communication Protocol Modbus-RTU
Mounting Type DIN35 DIN rail
Operating Temperature -25 °C to +60 °C
Dimensions 100 x 72 x 65.5 mm
Weight approx. 1.5 kg (incl. transformer set)

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Why the DTSU666-H 250A is important for dynamic electricity tariffs

In combination with the Huawei EMMA-A02, this sensor provides the highly precise real-time data necessary to benefit from dynamic electricity tariffs (such as Tibber or awattar). Only through exact measurement at the grid connection point can the system decide when is the most favorable time to charge the battery from the grid or activate large consumers.

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