DTSD3366D-7P-G2-N is our newly developed rail-mounted multi-function energy meter with CAN capability. Integrated with a CAN bus interface and supporting the CANopen protocol, it delivers high-speed data exchange featuring superior real-time performance and strong anti-interference capability. It is well suited for distributed measurement and control requirements under harsh industrial conditions, and widely applied in smart buildings, low-voltage power distribution, industrial automation, energy management and energy storage systems.
The meter consists of a measurement unit, data processing unit, communication unit, display unit, etc. It supports 690V voltage scenarios and offers functions including real-time monitoring, electric energy metering, data processing, harmonic analysis and event alarming.
Technical Specification
| Item | Specification |
| Product Type | 3-Phase DIN Rail Multifunction Power & Energy Meter |
| Measurement System | 3-Phase AC |
| Voltage Input | 3×220/380 V, 3×400/690 V, 3×690/1140 V |
| Current Input | 3×1.5 A / 3×5 A |
| Active Energy Accuracy | Class D |
| Measurement Parameters | Phase Voltage, Line Voltage, Phase Current, Zero-Sequence Current, Active Power, Reactive Power, Apparent Power, Power Factor, Frequency |
| Energy Measurement | Active Energy, Reactive Energy, Import/Export Energy |
| Harmonic Analysis | 2nd–63rd Harmonics |
| Harmonic Functions | Individual Harmonic Analysis, Total Harmonic Distortion (THD) |
| Alarm Functions | Overvoltage, Undervoltage, Overcurrent, Phase Loss, Load/Overload, Power Factor, Frequency and Other Electrical Alarms |
| Historical Records | Up to 50 Historical Alarm Events |
| Digital Inputs | 2 DI |
| Digital Outputs | 2 DO |
| Communication Interfaces | RS485, CAN, Ethernet |
| Communication Protocols | Modbus RTU, Modbus TCP, CANopen, DL/T645-2007 |
| Auxiliary Power Supply | DC 24 V |
| Display | LCD Display |
| Installation | DIN Rail Mounting |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Display Mode | Automatic Page Switching / Manual Page Switching |
Functions
Real-time Electrical Parameter Measurement
Three-phase phase voltage and line voltage, three-phase current and neutral current, total and phase active power, total and phase
reactive power, total and phase apparent power, total and phase power factor, and system frequency.
High-precision Energy Metering
Forward active, reverse active and combined active energy metering; Four-quadrant reactive, combined reactive 1 and combined reactive 2 energy metering.
Harmonic & Power Quality Analysis
Measurement of 2nd to 63rd harmonics of voltage and current; supports harmonic content per order, total harmonic distortion (THD),
odd-order/even-order distortion statistics to meet power quality requirements.
Event Alarm & Historical Record Storage
Supports loss-of-voltage alarm, overvoltage alarm, undervoltage alarm, phase-loss alarm, loss-of-current alarm, current-break alarm,
overload alarm, total power factor lower-limit alarm, system frequency lower-limit alarm and system frequency upper-limit alarm.
The meter features an Alarm indicator light, which turns off after the alarm is cleared. It can store up to 50 historical alarm records
in real time, saving the corresponding electrical parameters at the moment of alarm occurrence for convenient fault tracing.
Human-Machine Interaction
Two display modes available: automatic cyclic display and manual page turning via keys. Local keys support configuration of
transformation ratio, communication parameters, wiring mode, IP and other parameters.
Key Features
CANopen Industrial Communication
Supports CANopen, Modbus RTU, Modbus TCP and Ethernet for integration with industrial automation, EMS, SCADA and energy monitoring systems.
Comprehensive 3-Phase Monitoring
Real-time monitoring of voltage, current, power, power factor and frequency.
Advanced Energy Measurement
Measures active, reactive and import/export energy for energy management and consumption monitoring.
2nd–63rd Harmonic Analysis
Provides harmonic measurement and THD analysis for power quality monitoring.
High-Voltage Application
Supports configurations up to 3×690/1140 V, suitable for demanding industrial power distribution applications.
Smart Alarm & Event Recording
Monitors abnormal electrical conditions and stores up to 50 historical alarm events for troubleshooting.
DIN-Rail Installation
Compact DIN-rail design for control panels, switchboards, industrial equipment and energy management systems.
