Product Overview
The YADA YDM500D is a high-precision (Class 0.5) DC energy meter designed for accurate measurement of DC voltage, current, power, and energy in renewable energy and industrial applications.It supports RS-485 Modbus RTU communication, making it ideal for integration into energy management systems (EMS), EV charging stations, solar power plants, and energy storage systems.
With a compact structure and excellent EMC performance, the YDM500D ensures stable and reliable operation under demanding environments.
- Built for smart charging infrastructure-accurate, compliant, and ready for scalable EV networks.
- MID-certified accuracy ensures reliable billing-grade performance for commercial EV charging operations.
- Supports up to 1000V DC systems, fully compatible with high-power fast charging platforms.
- Dual RS485 communication enables seamless integration with charging control and cloud management systems.
- Shunt-based architecture delivers stable, high-accuracy measurement with flexible current ranges.
- Built for smart charging infrastructure-accurate, compliant, and ready for scalable EV networks.
| Product Name | YADA YDM500D Dual Channel DC Energy Meter for EV Charging | |||
| Model No. | YDM500D | |||
| Brand Name | YADA | |||
| Display Type | LCD Display | |||
| Measuring Energy Range | 0-99999.99kWh | |||
| Accuracy Class | Class 0.5 | |||
| Operating Temperature | -25℃~ 60℃ | |||
| Communication | RS485(Modbus-RTU) | |||
| Installation | 35mm DIN rail | |||
| Input current | 50A-600A, with 75mV(Via diverter) | |||
| Input Voltage | DC48V~DC1000V | |||
| Certificate | MID, UKCA, RCM, CE Certification(EN61010-1:2010/A1:2019, EN IEC61010-2-030:2021, EN 61326-1:2013, EN 61326-2-1:2013, EN IEC 61000-3-2:2019+A1:2021, EN 61000-3-3:2013 | |||
| +A1:2019+A2:2021 ) | ||||
| Warranty | 2 Years | |||
| Dimensions | 90.0mm*77.8mm*65.0mm | |||
| Appication | Data center, Telecommunication, Charge station, Industrial, IoT, Household and other Power Management System. | |||
Model description
| Model | Specifications | Main Function |
| YDM500D | Single | Single DC measurement,
one electric power pulse output, one second pulse output, one independent RS485 ports. |
| Double | Double DC measurement,
two electric power pulse output, one second pulse output, two independent RS485 ports. |
Key Features
-
⚡ DC Measurement – Accurately measures voltage, current, power, and energy in DC circuits
-
🔗 RS-485 Modbus RTU – Enables real-time communication with monitoring systems
-
🧠 Smart Energy Monitoring – Supports data collection, logging, and remote reading
-
🧩 Wide Measurement Range – Compatible with multiple DC voltage and current inputs
-
🔒 High Accuracy – Ensures precise data for energy billing and system optimization
-
💡 LCD Display – Clear, multi-line digital screen for real-time data viewing
-
🏗️ Industrial-Grade Reliability – Built to withstand continuous operation in harsh conditions
-
🔌 Easy Integration – DIN-rail mounting and flexible wiring options for quick installation
Certificates
Wiring
Communication
Each RS-485 communication interface allows up to 32 instruments to be connected to a bus. Communication cable can use ordinary shielded twisted pair, the total length should not exceed 1200m, the positive and negative polarity of RS-485 port of each equipment must be connected correctly. If the shielding twisted pair is long, it is recommended to have a resistance of about 120 Ω at its end to improve the reliability of the communication.
Dimension & Installation
Applications
-
🌞 Solar PV Systems – Measure generation and load on DC side
-
🔋 Energy Storage Systems (ESS) – Track charging and discharging energy flow
-
🚗 EV Charging Infrastructure – Monitor DC charging power and energy usage
-
🏭 Industrial DC Equipment – Real-time DC power monitoring for control cabinets
-
⚙️ Laboratories / Test Benches – High-accuracy DC data for measurement & verification
Advantages for B2B Buyers
-
✅ High Measurement Accuracy for billing and performance analysis
-
✅ Supports Modbus RTU – Easy integration with third-party SCADA / EMS
-
✅ Proven Reliability – Long service life and stable operation
-
✅ OEM & ODM Customization available (logo, voltage range, interface)
-
✅ Compliance-Ready for global projects (CE,MID,UKCA Certificates.)
FAQ
Q1: What parameters can YDM500D measure?
A1: It measures DC voltage, current, power, and cumulative energy (kWh).
Q2: Is it suitable for solar and EV applications?
A2: Yes, the YDM500D is widely used in PV systems, charging stations, and energy storage monitoring.
Q3: Does it support data communication?
A3: Yes, it supports RS-485 Modbus RTU for remote monitoring and integration with BMS/EMS systems.
Q4: Can the current range be customized?
A4: Yes, it supports external shunt inputs and can be customized according to project requirements.
Q5: What is the accuracy level?
A5: Typically Class 0.5, ensuring precise measurement for billing and auditing.
Request A DC 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.
Request A Quote Email The Engineering Team
Download Yada Catalog- EV Charging Solutions
Related Application Solutions
Solar + ESS + EV Charging EMS
Charging Pile Energy Management Solution