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ADL400N-CT Three Phase AC Energy Meter (External CT)
▋ Description
The ADL series is an intelligent DIN-rail mounted meter designed for new energy power systems, including photovoltaic grid-connected, micro-inverter, energy storage, and AC coupling systems. It offers high-precision measurement, compact size, fast response, and easy installation. The meter samples, measures, and monitors power parameters while communicating with inverters or Energy Management Systems (EMS). Key features include preventing reverse power flow, regulating power generation, managing battery charging and discharging based on real-time and accumulated energy, supporting bidirectional metering, and enabling efficient household distributed photovoltaic energy management.
▋ Common Applicaiton
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▋ Products Overview
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Overview |
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Main Features |
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Bidirection Metering ● For grids import and solar export metering ● For ESS charge&discharge metering ● Forward&backward metering |
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Paired with Inverter for Zero Export ● 1-channel RS485 to communicate with inveter ● 100ms fast response time (voltage, current, power) ● Bidirectional metering |
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Diverse Electricity Parameters Measurement ● U (Voltage) ● I (Current) ● P (Power) ● Q (Reactive power) ● S (Apparent power) ● PF (Power factor) ● kWh (Kilowatt-hours) ● kVarh (Kilovar-hours) |
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▋ Dimension&Packagement
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Outline Dimension |
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▋ DIN Rail Installation
▋ Application in IoT System
1.Function
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Function |
Function description |
Function provide |
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Measurement of kWh |
Three-phase or split-phase active kWh (positive and negative)，3 months historical energy data frozen storage |
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Measurement of electrical parameters |
Voltage, Current, Active power, Reactive power, Apparent power, Power factor and Frequency |
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LCD Display |
Segmented LCD display |
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Pulse output |
Active energy pulse output |
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Communication |
Communication interface: RS485, Communication protocol: MODBUS-RTU |
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(■：Standard；□：Optional)
2.1.Electric performance
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Input voltage |
Reference voltage |
110~277Vac L-N |
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Reference frequency |
45~65Hz |
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Power consumption |
<10VA, <2W |
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Input current |
Input current |
Optional 80A, 120A, 200A, 300A AC (via paired CT) |
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Overload |
1.2 times of rating [continuous] |
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Consumption |
<0.2VA |
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Measurement performance |
Accuracy of measuring |
Class 1.0 [Active energy] |
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Communication |
Interface |
RS485(A+、B-) |
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Connection mode |
Shielded twisted pair conductors |
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Protocol |
MODBUS-RTU |
2.2 Work environment
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Temperature range |
Work temperature |
-40℃~70℃ |
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Storage Temperature |
-40℃~70℃ |
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Relative humidity |
≤95%(No condensation) |
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Altitude |
<2000m |
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Working Environment |
Indoor environment |
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