Product Detail
DTSU666 Three Phase Smart Meter
Measurement
Compliance with EN 50470-1/-3 standard
Connection type: 3P4W (Three-phase, four-wire)
Accuracy: Class B / 1.0 (MID Certified)
Constant: 800 imp/kWh
Voltage
Nominal voltage (Un): 3×220/380V … 3×240/415V
Operating range: 0.8Un ~ 1.15Un
Power consumption: ≤ 2W / 10VA
Current
Direct connection: 0.25–5(80)A
Frequency
50Hz or 60Hz
Display Interface
LCD with backlight
LED Indication
Pulse output for energy measurement
Communications
RS485 interface, Modbus-RTU protocol
Baud rate options: 1200 / 2400 / 4800 / 9600 (default) / 19200 bps
Measured Values
Import / Export kWh and kvarh
Instantaneous kW, kvar, kVA
Irms, Vrms, Frequency, Power Factor
Environmental
Operating temperature: –25°C to +55°C
Storage temperature: –40°C to +70°C
Relative humidity: ≤ 95% RH (non-condensing)
Ingress protection: IP20
Dimensions
Size: 72 × 100 × 65 mm
Weight: Approx. 0.33 kg
The CHINT DTSU666 is a compact, three-phase, four-wire smart energy meter for precise power monitoring in industrial, commercial, and renewable installations. Certified to EN 50470-1/-3 MID Class B / 1.0, it measures voltage, current, power, frequency, power factor, and bi-directional energy. Featuring RS485 Modbus-RTU communication, it integrates easily with building and energy management systems. Housed in a DIN-rail IP20 enclosure, it includes a backlit LCD display and LED pulse indicator. With an operating range of 3×220/380V to 3×240/415V and 0.25–5(80)A, it ensures high accuracy, low power use, and quick installation for reliable sub-metering and solar monitoring.