Huawei
Huawei DTSU666-H Three-Phase Meter Smart Power Sensor 100 A with 3 Split-Core CTs
Huawei DTSU666-H Three-Phase Meter Smart Power Sensor 100 A with 3 Split-Core CTs
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Businesses and non-Italian private customers: purchase with 22% VAT. The 10% rate is reserved for private customers resident in Italy — find out more.
Foreign companies entitled to 0% VAT: please write to info@litio.store.
Delivery in 10-20 daysMetering & sensorsAC sideHuawei
Huawei DTSU666-H Three-Phase Meter Smart Power Sensor 100 A with 3 Split-Core CTs
The Huawei DTSU666-H in the 100 A version is the three-phase Smart Power Sensor for photovoltaic systems and storage systems with Huawei SUN2000 inverters. It measures voltage, current, active and reactive power, power factor and energy on the three phases in real time, distinguishing the energy drawn from the grid from the energy fed into it.
It is installed in the distribution board on a 35 mm DIN rail at the connection point and communicates with the inverter via RS485 with Modbus-RTU protocol. Measurement is indirect through three 100 A split-core current transformers with a 40 mA secondary, which are clamped onto the phase cables without having to cut them. It enables self-consumption management, export limitation and monitoring of energy flows in FusionSolar.
Key features
Complete three-phase measurementDetects the electrical quantities on all three phases in 3P4W (and 3P3W) networks, with separate counting of imported and exported energy.
Three 100 A split-core CTsThe 100 A / 40 mA split-core current transformers are fitted onto the phase conductors without breaking the line.
Accuracy class 1Active energy measurement in class 1 according to Huawei documentation.
RS485 Modbus-RTUDirect connection to SUN2000 inverters and to Smart Dongles / SmartLogger; baud rate 4800 or 9600 bps (9600 by default).
Service LCD displayShows the measurements and allows the address and communication parameters to be set on site.
Low consumptionConsumption on the voltage circuit ≤ 1.5 W / 6 VA, with operation from −25 °C to +60 °C.
Technical specifications
| Feature | Value |
|---|---|
| Product code | DTSU_100A |
| Model | DTSU666-H 100 A |
| Phases | Three-phase (3P4W / 3P3W) |
| Rated voltage | 230 V AC / 400 V AC, 50/60 Hz |
| Nominal current | 0 – 100 A |
| Measurement type | Indirect with 3 split-core CTs 100 A / 40 mA (included) |
| Accuracy class | Class 1 (active energy) |
| Communication | RS485, Modbus-RTU protocol (4800 / 9600 bps, default 9600) |
| Energy reading range | 0,00 kWh – 999999,9 kWh |
| Own power consumption | ≤ 1.5 W / 6 VA (voltage circuit); ≤ 0.2 – 0.4 VA (current circuit) |
| Mounting | 35 mm DIN rail |
| Operating temperature | −25 °C … +60 °C |
| Relative humidity | ≤ 75 % |
| Protection rating | Not stated by the manufacturer |
| Dimensions | 72 × 100 × 66 mm |
| Weight | 0.4 kg |
Documentation
PDFDatasheet DTSU_100AOfficial manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.