Huawei DTSU666-HW three-phase 80A WiFi smart meter

Smart Meter Huawei DTSU666-HW three-phase 80A with WiFi

The Huawei DTSU666-HW three-phase 80A Smart Meter is the next-generation smart energy meter with built-in WiFi connectivity. Designed for small and medium-sized three-phase photovoltaic installations, it combines Class 1 metering, wireless communication and native compatibility with Huawei SUN2000 inverters for optimum energy management and simplified configuration.

The WiFi revolution for smart meters

The DTSU666-HW model (suffix "W" for WiFi) stands out from the standard DTSU666-H range thanks to its integrated WiFi connectivity, offering a host of benefits:

Ultra-simplified installation: No more RS485 cables to run between the meter and the inverter. WiFi communication eliminates the need for data cabling, reducing installation time and the risk of wiring errors.

Flexible placement: Position the meter in the optimum place in your electrical panel without distance constraints from the inverter. WiFi provides sufficient range for most residential and commercial configurations.

Remote configuration: Set up and update the meter directly via the Huawei FusionSolar application, without having to physically handle the meter after the initial installation.

Ideal for small three-phase installations

With its capacity of 80 amps per phase in three-phase, the DTSU666-HW is perfectly sized for:

• Small three-phase homes: Houses with a 400V connection and modest subscribed power
• Micro-businesses: small shops, self-employed professionals, tradesmen with solar installations
• Residential installations up to 24 kWp: Perfect coverage of average domestic needs
• Renovation and retrofit: Monitoring added to existing installations without complex wiring

Recommended sizing: The 80A model is suitable for three-phase photovoltaic installations from 5 to 24 kWp, i.e. around 15 to 60 solar panels depending on their unit output.

Huawei FusionSolar wireless ecosystem

The DTSU666-HW WiFi Smart Meter fits seamlessly into Huawei's intelligent ecosystem:

• Three-phase self-consumption optimisation: real-time measurement of production and consumption over the 3 phases for automatic adjustment of flows
• Luna 2000 battery management: Intelligent coordination of storage based on your energy habits and tariffs
• Phase balancing: Detection of three-phase imbalances to optimise energy distribution
• Dynamic injection limitation: Precise regulation to comply with network constraints without loss of production

Advanced monitoring via mobile application

Thanks to its WiFi connectivity, the DTSU666-HW offers an enhanced user experience:

• Real-time visualisation: Production, consumption by phase, instantaneous power, cumulative energy, etc.
• Detailed historical data: Production/consumption curves by day, week, month, year
• Smart alerts: Notifications in the event of anomalies, overloads, imbalances or malfunctions
• Performance analysis: Self-consumption rate, savings made, carbon footprint avoided
• Remote access: consult your data from anywhere using the FusionSolar application

Simplified user interface

Despite its advanced features, the DTSU666-HW is still easy to use:

• Backlit LCD screen: Clear display of three-phase data even without a WiFi connection
• Easy WiFi configuration: connect to your home WiFi network in just a few steps using the app
• Touch buttons: Intuitive navigation through local settings menus
• DIN rail mounting: Standard installation in any three-phase switchboard

Optimised energy efficiency

With a power consumption of just 1.5 watts (slightly higher than the non-WiFi model due to the wireless communication module), the DTSU666-HW is extremely economical:

• Annual energy cost: around €0.40 per year (based on €0.30/kWh)
• Extra cost for WiFi vs RS485 cable: +€0.15 per year, more than offset by installation savings
• Continuous operation with no significant impact on bills
• Exceptional longevity with industrial-grade WiFi components

Main technical specifications

Advantages of WiFi vs RS485 cable

Recommended applications

New installations: The WiFi model is particularly suited to new buildings and installations where you want to minimise wiring and facilitate future maintenance.

Retrofit and renovation: Ideal for adding monitoring to an existing installation without additional cabling work.

Decentralised installations: Perfect when the switchboard and inverter are far apart.

Why choose Wattuneed?

Wattuneed is an authorised Huawei FusionSolar distributor in Belgium. We offer the full range of Huawei smart meters (WiFi and RS485) with permanent stock, expert technical support and assistance in choosing the right model for your installation. Our team is fully conversant with the WiFi configuration of Huawei meters.