Huawei
Huawei DTSU666-FE Three-Phase Meter Smart Power Sensor 100 A Ethernet Modbus-TCP
Huawei DTSU666-FE Three-Phase Meter Smart Power Sensor 100 A Ethernet Modbus-TCP
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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-FE Three-Phase Meter Smart Power Sensor 100 A Ethernet Modbus-TCP
The Huawei DTSU666-FE is the three-phase Smart Power Sensor with a Fast Ethernet interface, designed for photovoltaic systems, storage systems and electric vehicle charging stations. It measures voltage, current, active and reactive power, power factor and imported and exported energy on three-phase and single-phase networks.
It is mounted on a 35 mm DIN rail in the board at the connection point and transmits the data via an Ethernet port with Modbus-TCP protocol, a useful solution when laying an RS485 bus all the way to the inverter is awkward or too long. The built-in LCD display allows local reading of the quantities and configuration of the network parameters.
Key features
Communication over an Ethernet networkFast Ethernet port with Modbus-TCP protocol: the meter connects to the site LAN instead of a dedicated serial bus.
Three-phase and single-phase measurementCan be used on 3P4W and 3P3W networks and on a single phase, with bidirectional counting of energy drawn and fed in.
100 A capacity with CTsMeasures up to 100 A per phase; beyond the direct capacity, external current transformers are used.
Accuracy class 1Accuracy compliant with class 1 for active energy.
Built-in LCD displayShows voltage, current, power and energy and allows the communication parameters to be configured.
Low-consumption board formatMounting on a 35 mm DIN rail with self-consumption ≤ 2 W and operation from −25 °C to +60 °C.
Technical specifications
| Feature | Value |
|---|---|
| Product code | DTSU666-FE |
| Model | DTSU666-FE |
| Phases | Three-phase (3P4W / 3P3W); can also be used single-phase |
| Rated voltage | 230 V ac / 400 V ac, 50/60 Hz (operating range 85 – 288 V phase-to-neutral, 147 – 499 V line-to-line) |
| Nominal current | Up to 100 A |
| Measurement type | Direct up to 80 A; above that value with external current transformers |
| Accuracy class | Class 1 (active energy) |
| Communication | Fast Ethernet (RJ45), Modbus-TCP protocol |
| Display | LCD |
| Own power consumption | ≤ 2 W |
| Mounting | 35 mm DIN rail |
| Operating temperature | −25 °C … +60 °C |
| Protection rating | Not stated by the manufacturer |
| Dimensions | 72 × 98 × 65.5 mm |
| Weight | 0.7 kg |
Installation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.