HUAWEI · ELECTRICITY METER

HUAWEI Smart Power Sensor DTSU666-H 100A/40mA

SKU: 13103

Current and power accuracy: ± 1%; For precise energy measurement
Communication: RS485 / Modbus RTU, 9.600 bit/s; For integration and control
Regulation / Feed-in: zero injection; For measurement and energy control
network system: Three-phase, 3P4W; Suitable for the intended network system

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Enjoy maximum security: Up to 30-year warranty on high-performance modules, 10–12-year product warranty on inverters, and 10 years on battery storage systems (with a 15-year lifespan). For other products, please refer to the specific details in the respective product documentation.

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Product description

Please note: When you purchase this product, we will currently send you the latest model. DHSU1079-CT .

Huawei smart power sensor for connection to the 3-phase Inverter -- HUAWEI Smart Power Sensor DTSU666-H buy at Mini Power

-- Der Huawei Smart Power Sensor DTSU666-H is a three-phase Sensor for Self-consumption solar power systems. Our preview of intelligent power sensors can credentials for Solar inverters some Huawei Smart Energy Center so programmed are dass they the plant requirements zusätzlich to solar power generation and zero injection in the Power grid Show.
-- In addition, the Smart Power Sensor Huawei DTSU666-H 100 A/40 mA the communication via RS485 can also be read from another location.
-- Smart Power Sensor HUAWEI DTSU666-H 100 A/40 mA It is housed in a 100 x 72 x 65,5 mm enclosure and weighs 1,5 kg, including cabling. This allows for space-saving installation of the compact component. The operating temperature range is -25 °C to +60 °C, and the component tolerates a relative humidity of 5% to 95%. Currents up to 250 A can be measured.

-- For sure: With commissioning assistant
-- Intelligent: One-click commissioning
-- Precise: Accuracy class > 1
-- Guarantee for Smart power sensor Huawei DTSU666-H: 24 months
-- Price: The price of Smart meter sensor Huawei DTSU666-H is after German Annual Tax Act 0% VAT Prices in other countries are calculated according to local tax rates.

The Installation from Smart Power Sensor Huawei is very easy. Mini Power recommends however credentials for Installation through the power of an FOh, dude. befolgen you strictly credentials for installation instructions, um a message bad send email now or an failure through the power of improper Installation zu avoid.

Mini Power (New Power GmbH) is one of Huawei's official distributors in Europe. We promise that these products Huawei Smart Power Sensor DTSU666-H Original products are from the manufacturer Huawei.

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Datasheet & Instructions

Verified product-related documents and instructions.

01 HUAWEI Smart Power Sensor DTSU666-H 100 A/40 mA – User Manual (DE · 2024-06-26) Instructions · German 02 HUAWEI Smart Power Sensor DTSU666-H 100 A/40 mA – Datasheet (EN · 2025-11-13) Datasheet · English 03 HUAWEI Smart Power Sensor DTSU666-H 100 A/40 mA – Quick Start Guide – German Instructions · German

Technical information

The values that determine the purchase.

Huawei DTSU666-H 100A/40mA

Communication RS485 / Modbus RTU, 9.600 bit/s

phase voltage 176-288VAC

conductor voltage 304-499VAC

network system Three-phase, 3P4W

voltage accuracy ± 0,5%

Current and power accuracy ± 1%

Current transformer ratio 100A / 40mA

Operating temperature -25 to +60 °C

Technical information

Regulation / Feed-in zero injection

37.000+ installed balcony power plants

Since 2022 Experience with solar solutions

30 years Warranty on solar panels

11.000 kWh in battery storage systems

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Why Mini Power

Mini Power helps you choose balcony power plants, storage systems, solar panels, and suitable accessories. Product information, scope of delivery, and compatibility are clearly presented so you can select a system that suits your location and energy needs. If you have any questions, you can contact us directly at info@miniminipower.com.

Start your own energy transition with Mini Power.

Mini Power Google Reviews: 4,7 out of 5 based on 694 reviews

Mini Power Zendure 2025 Excellent Partner

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ntv and DISQ Germany's Best Online Shops 2026, 1st place price-performance balcony power plants

Frequently asked questions

Question & Answer

Answers to key purchasing questions regarding compatibility, performance, installation, and scope of delivery.

Which variant is supplied with the 100A/40mA item?

The package includes 1 × Huawei Smart Power Sensor DTSU666-H in the 100 A / 40 mA version. Other current transformer ratios are not included in this variant.

How do I choose between 100A/40mA and 250A/50mA?

The key factors are the measuring current, the intended converter ratio, and Huawei system approval. The two versions are electrically different and each requires the appropriate system configuration.

Who will install the three-phase sensor?

A qualified electrician must perform the mains connection, current transformer orientation, RS485 bus and parameterization according to the specific circuit diagram.

What is the function of the DTSU666-H 100A/40mA?

It is a three-phase power sensor for self-consumption PV systems. The product page mentions the monitoring of system demand as well as support for self-consumption and zero-feed-in functions.

Where is the Smart Power Sensor positioned within the system?

The published Q&A section describes the sensor's placement at the grid connection point between the meter or main distribution panel and the consumers being measured. The specific wiring follows the Huawei wiring diagram.

Why might the sensor display incorrect or negative values?

The published Q&A lists a reversed current transformer direction or an incorrect assignment of current and voltage phases as typical causes. Both must be checked during commissioning.

What dimensions and environmental values are listed on the product page?

Specifications include dimensions of 100 × 72 × 65,5 mm, an operating temperature range of −25 °C to +60 °C and 5% to 95% relative humidity.

How is the 100A/40mA version read?

The product page mentions RS485 communication, which is used to read the Smart Power Sensor in the appropriate Huawei system configuration.

What network configuration does the DTSU666-H 100A/40mA measure?

A three-phase 3P4W network. The voltage range is specified as 304–499 V between conductors and 176–288 V per phase.

Can a 250 A/50 mA converter be used with this 100 A version?

Not based on the verified assignment. This group is specifically designed for 100 A / 40 mA; a different converter ratio requires the appropriate sensor variant and configuration.

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In focus

Schematic view of a house with two PV systems, smart meter and shared grid connection point

Jiayue Liu

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HUAWEI Smart Power Sensor DTSU666-H 100A/40mA