Huawei DTSU666-H three-phase 100A smart meter

Smart Meter Huawei DTSU666-H three-phase 100A

The Huawei DTSU666-H three-phase 100A Smart Meter is an intelligent energy meter designed for medium-power, three-phase photovoltaic installations. With its class 1 measurement and native compatibility with Huawei SUN2000 inverters, this meter offers precise monitoring and optimum energy management to maximise your solar self-consumption in three-phase configuration.

The ideal solution for medium-sized three-phase installations

Positioned between the high-capacity models (250A) and the single-phase versions, the DTSU666-H 100A three-phase meets the needs of intermediate installations:

• Large three-phase homes: Houses with a 400V connection and medium subscribed power
• Small businesses: Shops, offices, practices with solar production of up to 30 kWp
• Collective buildings: condominiums, blocks of flats with shared photovoltaic installations
• Farming: Farms, livestock farms with moderate energy requirements

Capable of measuring up to 100 amps per phase in three-phase, the DTSU666-H 100A is perfectly sized for solar installations from 10 to 30 kWp, offering an excellent compromise between capacity and cost.

Seamless integration with the Huawei FusionSolar ecosystem

The DTSU666-H 100A Smart Meter is the key to unlocking all the advanced features of Huawei three-phase inverters:

Three-phase self-consumption optimisation: The meter measures solar production on the 3 phases and the consumption of each phase in real time. The inverter automatically adjusts the energy distribution to maximise overall self-consumption.

Phase balancing: Thanks to accurate 3-phase measurement, the system can identify imbalances in consumption between phases and adapt production accordingly to optimise injection and reduce imbalance surcharges.

Intelligent battery management: When paired with Huawei Luna 2000 batteries, the Smart Meter enables optimal storage based on three-phase analysis of your energy flows and peak/off-peak tariffs.

Simplified, intuitive user interface

The Smart Meter DTSU666-H 100A has been designed according to the Huawei philosophy: advanced technology, simple operation.

• Backlit LCD screen: Clear display of three-phase data (voltage per phase, current per phase, total power, energy)
• Intuitive configuration: quick set-up via the display or the Huawei FusionSolar application
• DIN rail installation: Standard installation in your three-phase switchboard in just a few minutes
• RS485 communication: Direct connection to Huawei inverters via Modbus RTU protocol

Ultra-low power consumption and professional reliability

With a total power consumption of just 1 watt, the Smart Meter DTSU666-H is one of the most economical three-phase meters on the market:

• Negligible impact on your energy costs (less than €0.25 per year)
• 24/7 uninterrupted operation
• Long professional life (over 15 years in normal conditions)
• Eco-responsible design that complies with environmental standards

Key technical features

Recommended applications and configurations

Installation with three-phase hybrid inverter: The DTSU666-H 100A Smart Meter is essential for all Huawei three-phase installations with Luna 2000 battery storage. It automatically manages flows between solar panels, batteries, consumption on the 3 phases and the power grid.

Advanced monitoring via FusionSolar: Connected to the Huawei ecosystem, the meter transmits all its data to the FusionSolar mobile application. You can view your production, consumption by phase, self-consumption rate and savings in real time and in the past.

Regulatory compliance: The DTSU666-H 100A complies with all European standards for energy meters and can be installed in accordance with the requirements of Belgian and European grid operators.

DTSU666-H range: choosing the right capacity

Huawei offers several versions of the three-phase DTSU666-H Smart Meter to suit all installation capacities:

• DTSU666-H 100A: For installations up to 30 kWp three-phase (this model) - Ideal for residential and small commercial installations
• DTSU666-H 250A: For installations up to 75 kWp three-phase - Designed for large commercial and industrial installations

Selection criteria: The 100A model is ideal if your installation does not exceed 30 kWp. Above that, choose the 250A model for a comfortable safety margin.

Advantages of the 100A vs 250A model

• Optimised cost for medium-sized installations
• Appropriate sizing: no unnecessary oversizing
• Maximum accuracy within the recommended operating range
• Simplified installation with smaller cross-section wiring

Why choose Wattuneed?

Wattuneed is an authorised Huawei FusionSolar distributor in Belgium. We offer the full range of Huawei smart meters, with permanent stock, expert technical support and assistance in sizing your three-phase solar projects. Our team will help you choose the Smart Meter best suited to your installation power.