YADA YDM201D Single-Phase Energy Meter | RS-485 Modbus RTU, AC 230V, Class B Accuracy

The YDM201D supports single-phase AC 230V, 2-wire systems and features digital energy measurement via RS-485 interface. Key product specs from Alibaba include:

• Accuracy class: Class B

• Measuring energy range: 0 – 4,294,967.2 kWh (i.e. large cumulative capacity)

• Input voltage: AC 230V

• Physical dimensions: 36 mm × 102 mm × 65 mm

• Operating temperature: –25 °C to +55 °C

• Feature set: Digital only display, safety, lightweight, eco-friendly durability, time display

This meter is ideal for measuring power consumption in single-phase circuits, especially in contexts like AC charging piles, small commercial circuits, or retrofits where full three-phase is unnecessary.

Product Name	YADA YDM201D Digital Energy Meter
Meter Type	AC Energy Meter
Model No.	YDM201D
Brand Name	YADA
Display Type	LCD Display
Measuring Energy Range	0-99999.99kWh
Phase	Single Phase
Accuracy Class	Class B
Operating Temperature	-25℃~ 55℃
Communication	RS485(Modbus-RTU)
Installation	1-Phase 2-wire, 35mm Din rail
Input current	0.25-5(80)A
Input Voltage	230V
Certificate	CE Certification(IEC62052-31:2015, IEC62052-11:2021)
Warranty	2 Years
Dimensions	36mm*102mm*65mm
Appication	Data center, Telecommunication, Charge station, Industrial, IoT, Household and other Power Management System.

Key Features & Benefits

• Single-Phase AC Metering — Suitable for 2-wire single-phase AC systems (230V)

• RS-485 Modbus RTU Interface — Enables system integration, remote monitoring, and data acquisition

• High Range for Cumulative Energy — Supports large cumulative energy display (up to ~4.29 million kWh)

• Compact Form Factor — Slim 36 mm width, easy to install even in tight spaces

• Reliable Operating Range — Operates from –25 °C to +55 °C, suited for varied climatic conditions

• Durable & Lightweight Construction — Built for long-term field use

• Time Display Functionality — Adds timestamp / clock features to meter display

• Eco-friendly & Safety Features — Designed for safety compliance, efficient power consumption

Applications

The YDM201D is well suited for:

• AC charging piles / stations (single-phase)

• Residential power monitoring (homes, apartments)

• Sub-metering in small commercial circuits

• Retrofit energy metering in existing single-phase systems

• Telemetry / IoT energy tracking devices

• Small-scale industrial circuits

• Energy auditing for single-phase installations

 

Communication

 

 

Dimension & Installation

   

 

 

 

 

 

 

MID Certification

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Why Choose YADA YDM201D?

• Compact & Efficient — Slim profile fits in tight panels

• Straightforward Integration — RS-485 Modbus RTU interface ensures compatibility with most BMS/EMS systems

• High Capacity Metering — Capable of tracking large cumulative energy totals

• Durable & Proven Design — Suitable for harsh environments over extended periods

• Cost-Effective for Single-Phase Applications — Optimal choice where three-phase monitoring is unnecessary

• Support & Quality Assurance — Backed by manufacturer support and warranty

FAQ (Sample Questions)

Q: What is “Class B” accuracy?
A: “Class B” is a defined accuracy class for energy meters per certain standards; it indicates acceptable measurement tolerance in typical operating ranges.

Q: What is the supported cumulative energy range?
A: This meter supports display up to 4,294,967.2 kWh.

Q: What voltage does it support?
A: It is designed for AC 230V single-phase systems (2-wire).

Q: What is the operating temperature range?
A: From −25 °C to +55 °C per product specification.

Q: What communication protocol does it use?
A: RS-485 with Modbus RTU for remote monitoring and system integration.