What is the Trio - Smart Meter Accessory (TommaTech NG Compatible)?
Trio - Smart Meter Accessory (TommaTech NG Compatible) is a direct-connected smart meter that measures the energy flow at three-phase grid connections and passes it to the inverter system via RS485. The NG in its name indicates that it is compatible with the TommaTech Next Generation series dongles and monitoring system.
The model type is Trio Smart Meter DTSU666. The voltage/current range is 0.25-5(80) A; it does not require a CT. Communication uses Modbus-RTU at a baud rate of 9,600 bps, and the accuracy class is B. The package includes a 10 m RS485 cable and an RJ45 connector.
Technical specifications
| Property | Value |
|---|---|
| Model Type | Trio Smart Meter DTSU666 |
| Interface | RS485 |
| Size | 100 x 72 x 65.5mm |
| Weight | 1.5 kg (3.3 lb) |
| Power Consumption | 1.5 W |
| Voltage / Current | 0.25-5(80)A |
| Operating Humidity | <75% non-condensing |
| Mounting System | DIN35 Rail |
| Power Grid Type | 3P4W/3P3W |
| Input Voltage (Phase Voltage) | 154Vac ~ 286Vac |
| Line Voltage | 290.5Vac ~ 539.5Vac |
| Phase Voltage | 168Vac ~ 312Vac |
| Accuracy Class | Class B |
| Baud Rate | 9,600 bps |
| Communication Protocol | Modbus-RTU |
| Operating Temperature Range | -10°C ~ +45°C |
| Storage Temperature Range | -25°C ~ +75°C |
| Accessories | RS485 Cable (10m / 33ft.), RJ45 Connector |
What projects is it suitable for?
The direct-connected three-phase meter is used in these cases:
- Home, villa and small business entries where the line current does not exceed 80 A
- Three-phase 4-wire or 3-wire (3P4W/3P3W) installations
- Projects that want production-consumption monitoring together with a TommaTech Next Generation dongle
Use in Antalya and Solar Nexo support
In Antalya, loads such as air conditioning and pool pumps raise household consumption in summer; the meter measures this flow at the grid entry and helps monitor it together with solar production. The operating temperature range is between -10°C and +45°C; ventilation should be considered so that the temperature inside the panel does not approach this limit in summer.
Solar Nexo handles meter mounting and the RS485 connection during installation. The product's datasheet can be downloaded from this page.
