ADL400W Three-Phase Wireless Energy Meter
Characteristic
Dual-Circuit Three-Phase Metering
Dual-Circuit Energy Metering
Three-Phase Four-Wire
Forward & Reverse Energy Metering
Compact 1P Design
Only 18mm Wide
1P DIN-Rail Design
Compact and Space-Saving
Wi-Fi & Fast Response
2.4GHz Wi-Fi Communication
Modbus TCP / HTTP
Power Response Time: 50ms
General
ADL400W is a three-phase wireless energy meter with external CTs, designed for PV, energy storage, microinverter and AC-coupled systems. It supports bidirectional energy metering, RS485 and Wi-Fi communication for inverter and EMS integration.
Function
Connection
Three-phase Four-wire
Voltage
Nominal Voltage: 3×230/400V
Input Range: 0.8Unom–1.2Unom
Overload: 1.2× rated value continuously; 2× rated value for 1s
Current
External CT Input
Imin: 0.3A
Itr: 1.5A
Ib: 30A
D10: 80A
D16: 120A
Short-time Overcurrent: 20Imax, 0.5s
Accuracy
Voltage: ±0.5%
Current: ±0.5%
Power: ±1.0%
Active Energy: Class 1 or B
Grid Frequency: 50Hz, error ±0.5%
Energy Metering
Forward and Reverse Active Energy
Forward and Reverse Reactive Energy
Split-Phase Energy
Communication
RS485: Modbus-RTU
Address: 1–247
Baud Rate: 1200–38400bps
Wi-Fi: Modbus-TCP / HTTP
Wi-Fi Frequency Band: 2.4GHz
IEEE 802.11b/g/n
Response Rate
50ms (Power)
Environment
Operating Temperature: -25°C to +55°C
Extreme Operating Temperature: -40°C to +70°C
Storage Temperature: -40°C to +85°C
Relative Humidity: ≤95%, non-condensing
Altitude: ≤2000m
Protection
Installation Category: CAT III
Overvoltage Category: OVC III
Front: IP51
Overall: IP20
Protection Class: Class II
Pollution Degree: II
UC Degree: III
Installation Environment: Indoor
Mechanical Class: M1
Wiring
Installation
Typical connection
| Item | Parameter |
|---|---|
| Grid | Three-phase four-wire |
| Nominal Voltage | 3×230/400V |
| Voltage Input Range | 0.8Unom–1.2Unom |
| Voltage Overload | 1.2× continuous; 2× for 1s |
| Voltage Power Consumption | <3W, <10VA |
| Voltage Accuracy | ±0.5% |
| Minimum Current | 0.3A |
| Transitional Current | 1.5A |
| Basic Current | 30A |
| Maximum Current | D10: 80A; D16: 120A |
| Short-Time Overcurrent | 20Imax, 0.5s |
| Current Power Consumption | <1W, <1VA |
| Current Accuracy | ±0.5% |
| Power Accuracy | ±1.0% |
| Frequency | 50Hz |
| Frequency Accuracy | ±0.5% |
| Response Rate | 50ms (Power) |
| Active Energy Accuracy | Class 1 or B |
| RS485 Protocol | Modbus RTU |
| Communication Address | 1–247 |
| Baud Rate | 1200–38400bps |
| Wi-Fi | 2.4GHz, IEEE 802.11b/g/n |
| Wi-Fi Protocol | Modbus TCP / HTTP |
| Operating Temperature | -25℃ to +55℃ |
| Storage Temperature | -40℃ to +85℃ |
| Relative Humidity | ≤95%, Non-condensing |
| Altitude | ≤2000m |
| IP Rating | Front: IP51; Overall: IP20 |
| Protection Class | Class II |
| Function | Description |
|---|---|
| Active Energy Metering | Forward and reverse active energy |
| Reactive Energy Metering | Forward and reverse reactive energy |
| Split-Phase Energy | Supports split-phase energy metering |
| Electrical Measurement | U, I, P, Q, S, PF, F |
| RS485 Communication | Modbus RTU |
| Wi-Fi Communication | Modbus TCP / HTTP, 2.4GHz, IEEE 802.11b/g/n |
