SolaX CHINT DTSU666 Three-Phase Smart Meter

The CHINT DTSU666 is a three-phase smart power meter designed for indirect connection and use in photovoltaic energy systems.

The DTSU666 Smart Power Sensor measures three-phase current and operates within a voltage range of 176–288 V. It has a very low power consumption of no more than 1 W.

Installation is straightforward. Once integrated into the system, performance data is shown on the built-in LCD display, which also allows easy local operation.

The meter supports RS485 communication, allowing data to be read remotely using the Modbus RTU communication protocol.

A key feature of the DTSU666 is its high measurement accuracy. Voltage measurement accuracy is ±0.5%, frequency accuracy is 0.01 Hz, while current, power, and energy are measured with a maximum deviation of ±1%. The meter is classified as accuracy class 1.

The device is housed in a compact enclosure measuring 100 × 72 × 65.5 mm and weighs 1.5 kg, including the wiring.

It operates reliably at temperatures from -25°C to +60°C and at a relative humidity of 5–95%.

Technical Specifications

Type: Three-phase smart power meter
Connection type: Indirect connection
Operating voltage: 176–288 V
Accuracy class: Class 1
Display: Built-in LCD
Power consumption: ≤ 1 W
Communication interface: RS485
Communication protocol: Modbus RTU
Operating temperature: -25°C to +60°C
Relative humidity: 5–95%
Dimensions: 100 × 72 × 65.5 mm
Weight including wiring: 1.5 kg
Warranty: 2 years