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AC Single/Three Phase Multi-Circuits DIN Rail Modular Power Meter

Max. 12 Circuits Three Phase Measurement

Max. 36 Circuits Single Phase Measurement

Input Current 5A by CTs

Prepaid/Postpaid Function for Billing System

kWh Class 0.5

RS485 Communication

Ethernet Communication Optional

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Describe

Acrel ADF400L multi - circuits energy meter is a highly versatile and accurate solution designed for diverse energy metering needs. It can accommodate up to 12 three-phase or 36 single-phase direct connections, or 12 three-phase transformer connections, making it suitable for a wide range of applications such as residential complexes, schools, and enterprises. This energy meter is equipped with advanced metering functions, including total active energy, forward and reverse active energy, and multi - tariff active energy metering. It supports multiple tariffs with 4 time zones, 2 time schedules, 14 daily time periods, and 4 tariff rates, providing flexible energy consumption management.

Acrel ADF400L series also features a user-friendly LCD display with backlight, allowing for easy reading of measurements such as voltage, current, active power, reactive power, apparent power, power factor, and frequency. Its communication capabilities are further enhanced by infrared communication, along with RS485 and Ethernet interfaces that support Modbus and DL/T 645 protocols, ensuring seamless integration with various energy management systems. With its high measurement precision, extensive functionality, and flexible installation options, the ADF400L multi - circuits energy meter is an ideal choice for efficient and precise energy monitoring and management.

Specifications

Technical Parameter		ADF400L-□H□S□D(Y)- □
Auxiliary power	Voltage	Three-phase 3*220V/380V power supply (for single-phase power supply, short-circuit terminals 1, 2, and 3 on the instrument)
Auxiliary power	Power consumption	≤10W
Voltage input	Rated voltage	3×220/380V、3×57.7/100V
Voltage input	Reference frequency	50Hz
Current input	Input Current	3×1(6)A(CT Access), 3*10 (80) A(direct access)
Current input	Starting current	1‰Ib
Measuring performance	measurement accuracy	0.5s level
Measuring performance	Clock accuracy	≤0.5s/d
Pulse	Pulse output	Each three-phase metering module has 1 active energy pulse
	Pulse Width	80ms±20ms
	Pulse constant	3×1(6)A specification 6400 imp/kWh
	Pulse constant	3×10(80)A specification 400 imp/kWh
Switch	Main module	Main module 2DI+2DO，Among them, DI is dry contact input
Switch	Slave module	Transformer access slave module 2DI+4DO，Among them, DI is 220V wet contact input
Communication	Infrared interface	Infrared communication
	RS485 interface	MODBUS-RTU
	Ethernet interface	Modbus-TCP、TCP/IP
Surroundings	temperature	Operating temperature：-20℃~+60℃，
	temperature	storage temperature：-30℃~+70℃
	humidity	≤95%RH，No condensation, no corrosive gas place
	altitude	≤2000m

Dimension & Wiring Diagram

Application Scenario

Energy Efficiency Management System

IoT Energy Management System

Work Site Application

About Acrel

"Optimized Energy Efficiency, Empower Green Future."

Founded in 2003, Acrel Co., Ltd.【Stock Code: 300286.SZ】 is a high-tech enterprise specializing in energy management solutions and electrical safety. Headquartered in Shanghai, Acrel offers innovative and sustainable solutions for microgrid energy efficiency and electrical safety. With over 600 patents and software copyrights, Acrel has deployed more than 28,000 system solutions globally, forming a comprehensive "cloud-edge-end" energy internet architecture.

Acrel's integrated product ecosystem spans from cloud platform software to end-user components, covering sectors such as power, renewable energy, data centers, smart buildings, transportation, and smart cities. These solutions enable intelligent, real-time energy management, enhancing energy security and reducing operational costs.

The company's production facility, Jiangsu Acrel Electric Manufacturing Co., Ltd., adheres to strict quality standards and environmental guidelines, with advanced testing centers and a commitment to lead-free production processes. Acrel's team of over 500 engineers delivers cutting-edge energy efficiency systems and smart energy solutions.

With a strong domestic presence, Acrel is actively expanding internationally, supported by a global network of sales and technical teams and an e-commerce platform that ensures seamless service experiences worldwide. Acrel is proud to help businesses improve efficiency, reduce consumption, and achieve sustainability goals.

Together, we are building a smarter, greener future.