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2026

Acrel ADW300 IoT Wireless Meter Promotional Brochure

ADW300

Multifunctional Wireless Energy Meter

Industry’s Best Choice for Smart Metering and Flexible Operation and Maintenance — metering, O&M supervision and power monitoring for low-voltage networks.

Product Overview

The ADW300 wireless meter is mainly used to measure the three-phase active power of low-voltage network. It features small size, high precision and rich functions. With optional communication methods, it supports RS485 communication and wireless communication such as LoRa, LoRaWAN, 4G and WiFi, and adds the current sampling mode of external transformer, so users can install and use it in different occasions. It can be flexibly installed in the distribution box to realize the needs of classified and itemized power metering, operation and maintenance supervision or power monitoring for different areas and different loads.

System Architecture

APPremote reading Cloud PlatformAcrel / 3rd party EMSenergy mgmt 3rd-Partyplatform

MQTT HTTP TCP/IP Transparent

4G WiFi LoRa LoRaWAN RS485 / Modbus-RTU

ADW300 Wireless Energy Meter4DI2DO · leakage current · cable temperature

Industrial Parks Commercial Buildings PV & Storage EV Charging

LOW-VOLTAGE NETWORK · DISTRIBUTION BOXES · CLASSIFIED & ITEMIZED METERING

Application Scenarios

Industrial Parks & Enterprise Energy Efficiency

Real-time monitoring of production equipment energy data & status
Optimize energy distribution and reduce production cost
Replace manual inspection; timely troubleshooting

Data support to raise energy efficiency and cut manual O&M cost

Typical customers: ABB · Shell · Envision Intelligent · Li Auto

Commercial Building Energy Management

Monitor & manage building energy consumption intelligently
Flexible rate adaptation for differentiated billing
Adjust consumption strategy and reduce electricity cost

Real-time monitoring · remote control · rate issuance

Typical customer: Lawson

New Energy Industry

PV & storage generation-side accurate monitoring
Bidirectional metering & reverse-flow prevention
Station O&M: settlement, power quality, demand alarm

Real-time monitoring · power quality analysis · fee settlement · demand alarm

Typical customers: NIO · Jiangsu Beiren · KSTAR · Wanbang

Key Features

Comprehensive Functions

Extended functions beyond basic metering: 4DI2DO (breaker status, remote control / alarm), leakage current and cable temperature measurement to prevent electrical fire and temperature-rise failures.

Rich Networking Methods

RS485 networking, LoRa / LoRaWAN local centralized networking, 4G / WiFi direct transmission; MQTT, HTTP and TCP/IP transparent transmission access.

Easy Installation

External open-type CT and Rogowski coils fit tight low-voltage cabinets and floor distribution boxes; power-free installation supports non-power-off construction in O&M projects.

Customizable Protocol

Deep customization of protocols for industry customers, supporting project-specific data models and integration needs.

Technical Data & Selection

ADW300 · ADW300W · ADW300-HJ

Product Selection

Rated voltage
Voltage specs	3×57.7/100V · 3×220/380V · 3×230/400V · 3×380/660V · 3×100V · 3×380V · 3×660V
Current specifications
ADW300	0.01–0.05(6)A · 200mV (1000A–10000A Rogowski coil) · 333mV
ADW300W	0.01–0.05(6)A · 0.2–1(100)A
ADW300-HJ	0.01–0.05(6)A (D10) · 0.2–1(100)A (D16) · 0.8–4(400)A (D24) · 1.2–6(600)A (D36)
Power supply
Auxiliary power	AC/DC 85–265V · AC/DC 110–415V · DC 12V · DC 24V · DC 48V

4DI2DO Leakage current Cable temperature External CT / Rogowski coil

Qualification Certificate: CE-EMC · CE-RED · ROHS — compliant products for global markets.

Model naming & options — U: outage report · L: residual current · T: cable temperature · C: RS485 · K: 4DI2DO · LoRa / WiFi / 4G / LoRaWAN · built-in or external transformer

Certified

CE-EMCCE-REDROHS

Flexible communication — optional 4G / WiFi / LoRa / LoRaWAN / RS485 for fast wireless deployment.

Typical Cases

Charging Station Operator3,000+

Electricity-bill settlement across sites

A large domestic charging station operator settles bills between charging and leasing sites and monitors site status across 3,000+ sites nationwide.

ADW300-4G solution · remote rate configuration · phase-sequence correction · current polarity adjustment

C&I Energy Storage Operator500+

Storage revenue accounting

A domestic industrial & commercial storage operator monitors grid-connected energy, operating status and charging / discharging data to calculate storage revenue across 500+ sites.

ADW300-4G two-way metering · rapid transformation & deployment

Lawson ChinaMulti-region

Store energy monitoring & reports

Pilot areas including Shanghai, Guangdong, Liaoning, Sichuan and Chengdu monitor store energy consumption, data reports and regional energy reports.

ADW300-4G standard transformer solution · configuration-free meter access on Acrel platform

ADW300 — compact DIN-rail design, ready for global projects
Non-power-off installation · external CT / Rogowski coil · remote configuration & O&M
Contact: binn@acrel-electric.com · WhatsApp: +86 15076062079

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