DC Power Meter High Voltage 800V Bidirectional Energy Monitoring for Battery Storage EV Chargers

YDi50P-N is a networked DC energy monitoring terminal that combines 800V DC voltage measurement, Hall-based current measurement, bidirectional energy metering, historical data recording, alarm management and Modbus communication for modern DC power systems.

YDi50P-N Core Technical Data

Category	Parameter	YDi50P-N Specification
Product Type	Product	Intelligent DC Energy Meter
Application	Typical Applications	DC Distribution, EV Charging, BESS, Telecom Power, Data Center DC Systems
DC Voltage	Rated Voltage	800V DC
	Input Method	Direct Voltage Input
	Overvoltage Capacity	1.2 × Rated Voltage Continuous
DC Current	Current Input	Hall Sensor Input
	Hall Sensor Output	4V Secondary Output
	Measurement Method	External Hall Current Sensor
Measurement	DC Voltage	Voltage Measurement
	DC Current	Current Measurement
	DC Power	Active Power Measurement
Energy Metering	Energy Direction	Forward & Reverse
	Energy Measurement	Bidirectional DC Energy Metering
Accuracy	Voltage Accuracy	±0.2% / ±0.5%
	Current Accuracy	±0.2% / ±0.5%
	Power Accuracy	±0.5% / ±1.0%
	Energy Accuracy	±0.5% / ±1.0%
Demand	Maximum Demand	Power & Current Demand
	Demand Period	1–60 min
Data Logging	Monthly Energy Data	12 Months
	Annual Energy Data	5 Years
Event Recording	SOE Records	Up to 50 Events
Alarm	Monitoring	Over/Under Voltage, Over Current, Overload, Temperature
Communication	RS485	Modbus RTU
	Ethernet	Modbus TCP/IP
	RS485 Speed	1200–38400 bps
	Ethernet Speed	10/100 Mbps
Digital Input	DI	Up to 4 DI
Relay Output	DO	2 Relay Outputs
Sensor Power Supply	Hall Sensor Supply	DC ±12V
Installation	Mounting	Panel Mount
Dimensions	Meter Size	98 × 98 × 80.8 mm
Panel Cutout	Installation Opening	92 × 92 mm
Operating Temperature	Temperature Range	-20°C to +70°C
Storage Temperature	Storage Range	-40°C to +70°C
Humidity	Relative Humidity	5–95% RH
Altitude	Maximum Altitude	≤2000 m

 

YDi50P-N — 5 Core Selling Points

1. Up to 800V DC Direct Voltage Measurement，YDi50P-N  supports direct DC voltage measurement up to 800V, providing accurate and reliable electrical data for high-voltage DC distribution, EV charging, battery storage, and other DC power systems.

2. Hall Sensor Input for High-Current DC Monitoring，YDi50P-N  uses an external Hall current sensor with a 4V secondary output, enabling accurate and flexible current measurement for high-current DC applications while simplifying system integration.

3. Bidirectional DC Power & Energy Metering , YDi50P-N measures both forward and reverse DC power and energy, making it ideal for applications with bidirectional energy flow such as battery storage, EV charging, and DC microgrid systems.

4. RS485 & Ethernet for Seamless EMS Integration, With RS485 Modbus RTU and Ethernet Modbus TCP/IP communication, the YDi50P-N enables reliable remote data transmission and seamless integration with EMS, SCADA, PLC, and other energy management platforms.

5. Advanced Data Logging & Intelligent Alarm Monitoring, YDi50P-N records historical energy data and abnormal events while supporting configurable voltage, current, overload, and other alarms for continuous monitoring and improved DC system reliability.

FAQ

Q1. What is the maximum direct DC voltage?

Up to 800V DC as standard. Other voltage ratings can be specified when ordering.

Q2. How is DC current measured?

Through an external Hall current sensor with a 4V secondary output.

Q3. Can it measure bidirectional energy?

Yes. It measures and stores both forward and reverse DC energy.

Q4. Can it connect to an EMS?

Yes. It supports RS485 Modbus RTU and Ethernet Modbus TCP/IP.

Q5. Can it monitor breaker status?

Yes. Up to 4 digital inputs are available depending on configuration.

Q6. Does it support alarm output?

Yes. Two relay outputs are available in the relevant configuration.

Q7. How much historical energy data can it store?

12 months of monthly data and 5 years of annual data.

Q8. Is it suitable for EV charging and BESS?

Yes. Its 800V DC measurement, Hall sensor interface, bidirectional energy metering and network communication make it well suited to these DC energy applications.

 

YDi50P-N Intelligent DC Energy Meter VS Ordinary DC Energy Meter

The YDi50P-N is designed not only to measure DC energy consumption, but also to provide high-voltage DC measurement, bidirectional energy metering, Hall sensor current measurement, data recording, alarms, and network communication for modern DC power systems.