● Full electrical parameters Measurement
● Dual-channel bidirectional energy measurement
● Rated Voltage: 3×230/400Vac (direct connect)
● Input Current: 120A (via paired CT)
● Communication: WIFI (Optional); LoRa (Optional); RS485 (Standard, MODBUS-RTU)
● Application: PV grid-connected system, micro inverter system, energy storage system, AC coupling system etc.
General
ADL200W ADL400W Series DIN-Rail Mounted Multifunctional and Dual Circuits Electric Energy Meter With External Current Transformer is an intelligent instrument mainly designed for new energy power generation systems such as photovoltaic grid-connected system, micro inverter system, energy storage system, AC coupling system, etc. The product has the advantages of high precision, small volume, high respondent speed and convenient installation.
It can monitor and measure real-time power and other power parameters, support protocols such as Modbus-TCP and http, and communicate with inverters or energy management systems (EMS) via Wi-Fi or Lora communication to achieve functions such as anti-reverse flow, regulating power generation, and battery charging and discharging. It can be bidirectionally measured to achieve energy management for household distributed photovoltaic systems.

Dimension & LCD Display

Wiring
Wiring sample of current and voltage
Terminal
Typical Connection
|
Function |
Function Description |
Function Provide |
|
Measurement of kWh |
Dual-channel Single-phase active kWh (positive and negative) |
■ |
|
Measurement of electrical parameters |
Voltage, Current, Active power, Reactive power, Apparent power, Power factor and Frequency |
■ |
|
LCD Display |
Segmented LCD display |
■ |
|
Pulse output |
Active energy pulse output |
■ |
|
Communication [Wired] |
Communication interface: RS485, Communication protocol: MODBUS-RTU |
■ |
|
Communication [Wireless] |
Communication method: WiFi; Communication protocol: MODBUS-TCP |
□ |
|
Communication [Wireless] |
Communication method: LoRa; Communication protocol: MODBUS |
□ |
(■; Standard; □: Optional)
|
Input voltage |
Norminal voltage [Unom] |
3×230/400Vac |
|
Input range |
0.8Unom~1.2Unom |
|
|
Overload |
1.2 times rating [contiunuous] 2 times the rating for 1 second |
|
|
Power consumption |
<2W, <10VA |
|
|
Accuracy class |
<10VA, <2W |
|
|
Input current |
Input current |
120A AC (via paired CT) |
|
Minimum current [Imin] |
0.3A |
|
| Transitional current [Itr] |
1.5A |
|
|
Basic Current [Ib] |
30A |
|
|
Maximum Current [Imax] |
Imax=120A [with D16 CT] |
|
|
Short-term Overcurrent |
30 times the maximum current for 20ms |
|
|
Power Consumption |
<1W, <1VA |
|
|
Accuracy Class |
Error ±0.5% |
|
|
Measurement performance |
Accuracy of measuring |
Class 1.0 [Active energy] |
|
Response Rate |
Voltage, Current, Power |
50ms |
|
Communication |
Wired [Standard] |
RS485 [MODBUS-RTU] |
|
Wireless [Optional] |
WiFi [MODBUS-TCP, HTTP] |
|
|
Wireless [Optional] |
LoRa [MODBUS] |


