The DDS3366D-2PLE Intelligent Power Protection Meter is designed for a wide range of low-voltage power systems, including municipal buildings, commercial structures, residential areas, industrial automation, and school or apartment management. This cost-effective energy protection device integrates precise measurement, overload protection, communication capabilities, and remote control functions, offering a comprehensive solution for ensuring the safe and efficient use of electricity.
Technique Parameters
| Measurement Accuracy | ||
| Parameter | Accuracy | Measurement Range |
| Current | Class 0.5 | 0.2A~60A |
| Voltage | Class 0.5 | AC176V~264V |
| Frequency | ±0.02Hz | 45Hz~65Hz |
| Power | Active Power Class B (Class 1) | / |
| Power Factor | ±0.02 | 0.5L~1.0~0.5C |
| Harmonic | Current Harmonic Class B | 2nd Order |
| Electric Energy | Active Power Class B (Class 1) | |
| Specification Parameters | ||
| Rated Voltage | 220V | |
| Current Specification | 0.2~0.5(60)A | |
| Pulse Constant | 1600imp/kWh | |
| Reference Frequency | 50Hz | |
| Accuracy Class | Class B | |
| Application Scope | ||
| Name | Normal Operation | Limit Operation |
| Voltage | 0.8Un~1.2Un | 0.7Un~1.3Un |
| Frequency | 45Hz~65Hz | 45Hz~65Hz |
| Environmental Conditions | ||
| Environmental Conditions | ||
| Storage Temperature：-40℃~70℃ | Operating Temperature：-20℃~55℃ | |
| Humidity：5%RH~75%RH | Limit Temperature：-25℃~60℃ | |
| Communication | ||
| Communication Parameters | ||
| Communication Port | RS485，2-wire half-duplex | Baud Rate：1200bps, 2400bps, 4800bps, 9600bps, 19200bps optional; default 2400bps. For other requirements, please refer to the actual product. |
| Parity Bit | None/Odd/Even optional | default even parity |
| Communication Address | DL/T645-2007 communication address is 12-digit BCD code, default is meter code. | |
| Communication Protocol | Supports DL/T645-2007 and ModBus-RTU protocols | |
| Bluetooth | Connects to the server platform for data interaction; low-power BLE, within 20 meters, compatible with BLE4.0 ~ BLE5.2 | |
Key Features
- Built-in Relay with Overload Protection: The DDS3366D-2PLE features a built-in relay that provides reliable overload protection. It automatically disconnects the load when excessive current is detected, preventing damage to electrical equipment and ensuring the safety of the power system.
- Smart Fault Detection: Equipped with advanced fault recognition, the device can detect abnormal or harmful load conditions, such as malicious overloading or short-circuits, and immediately trigger a protection response.
- Real-Time Energy Measurement: This intelligent energy meter accurately measures voltage, current, power, and energy consumption, providing real-time data on energy usage and system status.
- RS485 and Bluetooth Communication: The device supports both RS485 communication interface and Bluetooth for remote monitoring and control. Users can remotely manage power circuits, including switching them on/off, ensuring convenience and flexibility in energy management.
- LCD Display for Easy Monitoring: The large, easy-to-read LCD display allows users to monitor power parameters and status indicators at a glance.
- Compliant with Industry Standards: The DDS3366D-2PLE complies with national standards such as GB/T17215.321-2021, GB/T 17215.322-2008, and DL/T645-2007, ensuring high accuracy, stability, and reliable performance in line with industry requirements.
- Low Power Consumption & Data Backup: This meter is designed for low energy consumption while ensuring that critical data, including energy usage and fault history, is automatically saved in the event of a power outage.
- Remote Power Management: When paired with remote energy management software, the DDS3366D-2PLE enables remote monitoring, system diagnostics, and automated power distribution management, offering complete control over your power system.
- Easy Installation and Maintenance: With its straightforward design, the DDS3366D-2PLE can be easily integrated into existing electrical panels, providing a cost-effective solution for upgrading your power protection system.
Applications
- Municipal Buildings & Commercial Facilities: Protect power distribution systems from overloads and ensure smooth, safe operations in high-demand environments.
- Residential Areas & Apartments: Ideal for managing household energy usage, preventing power issues, and promoting safe electricity consumption.
- Industrial Automation & Schools: Safeguard critical machinery, electrical systems, and classrooms from damage due to electrical faults, optimizing efficiency and reducing maintenance costs.
- Energy Management Systems: Perfect for integration with remote energy management software for distributed energy systems and automated power control.
More Than an Energy Meter
Measure. Protect. Control. Connect.
Accurate Energy Monitoring
Track voltage, current, power and energy consumption in real time.
Integrated Electrical Protection
Detect overloads and abnormal load conditions and disconnect the load when protection is required.
Remote Power Control
Use RS485 or Bluetooth connectivity for remote monitoring and power control, reducing the need for manual intervention.
Simplified System Design
Integrate metering, protection, communication and control in one compact device to reduce system complexity.
EMS-Ready Connectivity
Connect energy data with EMS, BMS, SCADA and other management platforms through Modbus RTU.
Lower Total Cost of Ownership
Reduce additional components, wiring, installation work and maintenance requirements for suitable applications.
Built-in Relay Energy Meter vs. Conventional Energy Meter
| Key Value | Conventional Energy Meter | YADA Built-in Relay Energy Meter |
|---|---|---|
| Energy Measurement | Measures electricity consumption | Measures and monitors electricity consumption in real time |
| Electrical Protection | Usually requires separate protection devices | Built-in overcurrent protection and tripping |
| Load Control | External relay/contactor may be required | Built-in relay for integrated load control |
| Fault Response | Detects abnormal conditions but may require external action | Detects abnormal conditions and can disconnect the load |
| Remote Control | Limited or requires additional equipment | Supports remote monitoring and load control |
| Communication | Depends on model | RS485 Modbus RTU + Bluetooth connectivity |
| System Components | Meter + additional control/protection components | Metering, protection and control integrated in one device |
| Wiring | More components can mean more wiring | Simplified wiring and system configuration |
| Installation | More installation points | Fewer components and easier installation |
| Panel Space | Additional space may be required for control devices | Compact integrated design saves panel space |
| Commissioning | Multiple devices may require separate configuration | Simplified commissioning with integrated functions |
| On-Site Operation | More manual intervention may be required | Remote control can reduce site visits |
| Energy Management | Primarily focused on measurement | Supports monitoring, protection, control and energy management |
| EMS Integration | May require additional communication devices | Direct integration with EMS/BMS/SCADA via Modbus RTU |
| Data Continuity | Depends on model and system | Data backup helps preserve key energy and fault records |
| Retrofit | May require additional control components | Suitable for upgrading existing low-voltage distribution systems |
| Maintenance | More external components can increase maintenance points | Integrated design simplifies maintenance |
| Total System Cost | Unit price may be lower, but system cost can increase with additional components | Higher functional integration can reduce overall system cost |
| Total Cost of Ownership | Potentially higher as control and protection functions are added | Designed to reduce hardware, installation and maintenance requirements |
| Business Value | Measure electricity | Measure + Protect + Control + Connect |
A conventional energy meter mainly measures electricity consumption. YADA’s built-in relay energy meter integrates metering, protection, load control and communication in one device—helping reduce system complexity, installation work and total cost of ownership.
Enhance Your Power System’s Safety & Efficiency!
With the DDS3366D-2PLE Intelligent Power Protection Meter, you get an affordable, reliable, and feature-packed solution to monitor and protect your electrical systems. Whether for residential, commercial, or industrial use, it provides advanced functionality and remote control to ensure safety, optimize energy use, and extend the lifespan of your equipment.
Request An AC Energy Meter Quote
Send the phase configuration, maximum load current, required accuracy class, communication protocol and whether the reading is used for billing. YADA’s engineering team confirms the model and CT ratio.