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Three Phase Energy Efficiency Management Power Monitoring Device DTSD342-9N

Minimum Order Quantity : 100 Price : 1080
Packaging Details : Carton Packaging Delivery Time : 30 days
Payment Terms : T/T Supply Ability : 2000 per day (based on the number of the order)
Place of Origin: Changsha, Hunan Brand Name: Willfar Information Techonology Co., Ltd.
Certification: CPA/CMC/CE Model Number: DTSD342-9N

Detail Information

Color: Grey Measuring Range: 10V~700V
Power Consumption: < 0.05VA Accuracy: RMS 0.2 %
Resolution: 0.01V Screen: LCD
Working Voltage: 220V Working Current: 1.5(6)A
Communication Interface No.: 4
High Light:

smart energy monitor


3 phase power monitor

Product Description

Three-phase Energy Distribution Management Monitor Device DTSD342-9N


Company Profile
Willfar Information Technology Co., Ltd.
- Established in 2004;
- Listed on the STAR Market of the Shanghai Stock Exchange in December 2019;
- Leading supplier of meter reading (AMI) equipment and operation service;
- The first company to develop "One DCU Reading Multi-meter" solution in China;
- The first company to have large-scale application of technologies and systems like "CPU smart-card Charge and Control", "One DCU Reading Multi-meter", LoRa-based RF Communication and "District Metering Area (DMA)”
Technical Parameter

Item Parameters
Wiring Mode Three Phase 3 wires, Three Phase 4 wires, Single Phase


Voltage Reference Voltage: Un:AC380V,AC220V,AC100V,AC57.7V
Range: 10V~700V
Power Consumption: < 0.05VA(Single Phase)
Accuracy: RMS 0.2 %
Resolution: 0.01V
Current Nominal Current In: 0.3A,1A,1.5A,5A
Range: 0.001In ~ 10A
Power Consumption: < 0.05VA (single line nominal current)
Accuracy: RMS 0.2 %
Resolution: 0.001A
Accuracy: 0.5%或0.2%
Resolution: 0.001kW/kVar/kVA
Line Frequency Range: 45 Hz~65 Hz
Accuracy: 0.2%
Resolution: 0.01 Hz
Harmonic Wave Time: 2~50 times
Accuracy: Class A
Resolution: 0.01 %
Metering Active Electrical Energy Level of Accuracy: 0.5S/0.2S
Resolution: 0.01 kWh
Reactive Electrical Energy Level of Accuracy: Class II
Resolution: 0.01 kvarh

 Digital Signal

Power Pulse Output 2-line electric energy (active/reactive) Pulse Output
Switch Output
2-line electromagnetic relay output
Normally Open Type
Contact Rating: AC 250V /3A;DC 30V /3A
Switch Intput
4-line dry contact input
Analog Signal

Transducing (analog) Output

4-line transducing output
Current Output Type (4~20mA/0~20mA/0~24mA)
Voltage Output Type (0~5V/0~10V)
Accuracy: 0.5%
Communication RS-485 Communication Interface
Interface: 2-wire half duplex
Communication Rate: 600bps~38400bps
Protocol: Modbus-RTU, DL/T645
Environment Working Temperature -25℃~+60℃
Limit Working Temperature -35℃~+70℃
Relative Humidity ≤ 95% (non-condensing)
Other Power Supply AC or DC
Maximum Input Range: 40V~420V
Power Consumption: ≤1W,2VA
Dimension Boundary Dimension (mm):96×96×95
Hole size (mm):92×92
Weight around 450g




- High precision: comprehensively measure power parameters, the accuracy of active power is Level 0.5s, the accuracy of reactive power is Level 2.
- High intelligence: multiple rate electric energy, monitor power quality parameters, including positive and negative zero sequence voltage, current, 2~50 times harmonic voltage and current data.
- Easy reading: large screen, high brightness liquid crystal display.
- Wide voltage: AC/DC adaptive operation, AC/DC input range: 40~420V.
- Multi-communication: 2-way 485 communication interface, 1-way Ethernet interface, supporting MODBUS-RTU, DL/T645-2007 and MODBUS-TCP protocols.
- Multi-interface: 4 switch inputs, 2 relay output, 4 analog transmission output (optional).
- High performance: dustproof and waterproof, nationally standardized double insulation, level 4 EMC anti-disturbance test, Class B level RF electromagnetic field interference.





Suitable for electrical transforming and distribution automatic systems, industrial control and industrial automation systems, energy management systems and community power monitoring occasions etc.

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