● Measurement: 3-phase AC kWh, kVarh, U, I, P, Q, S, PF, F and etc
● Accuracy: 0.5% (kWh)
● Frequency: 45~65Hz
● Rated Voltage: 3x380~456Vac L-L (direct connect); 3x100~120Vac L-L (via PTs)
● Rated Current: 3x10(80)A AC (direct connect); 3x1(6)A AC (via CTs)
● Communication: RS485 (MODBUS-RTU)
● Harmonic: 2~31st and total Harmonic
● Standard&Certificate: IEC; CE;CE-MID; EAC
● Multi-rate: 4 Tariff Rates and etc
● Data Function: Frozen Data,Max Demand,etc
![]()

Acrel ADL400 three-phase electric meter is designed for three-phase energy measurement on a low voltage system—with the comprehensive acrel adl400 manual providing detailed guidance on its application and operation. The Acrel ADL400 meter meets the related technical requirements of electronic meter in the IEC62053-21 and IEC62053-22 standards.
| Picture | Function |
![]() | ● Measurement: 3-phase AC kWh, kVarh, U, I, P, Q, S, PF, F, etc ● Accuracy: 0.5% (kWh) ● Frequency: 45~65Hz ● Rated Voltage: 3x380~456Vac L-L (direct connect); 3x100~120Vac L-L (via PTs) ● Rated Current: 3x10(80)A AC (direct connect); 3x1(6)A AC (via CTs) ● Communication: RS485 (MODBUS-RTU) ● Harmonic: 2~31st and total Harmonic ● Standard&Certificate: IEC; CE;CE-MID; EAC ● Multi-rate: 4 Tariff Rates, etc ● Data Function: Frozen Data, Max Demand, etc |
Products Overview


![]()
Direct Connect Type

PIN/Terminal Overview of Acrel ADL400 meter (Direct Connect Type)
|
|
Power Wiring: 3-phase 4-wire via direct connect | Power Wiring: 3-phase 3-wire via direct connect |

PIN/Terminal Overview of Acrel ADL400 (Direct Connect Type)
CT Operated Type

PIN/Terminal Overview of Acrel ADL400 (CT Operated Type)
|
|
Power Wiring: 3-phase 4-wire CT operated | Power Wiring: 3-phase 3-wire CT operated |

RS485 Wired Communication of Acrel ADL400 (CT Operated Type) with IoT Gateway
![]()


![]()

Function | Function description | Function provide |
Measurement of kWh | Active kWh (positive and negative) | ■ |
Reactive kWh (positive and negative) | ■ | |
A. B, C split phase positive active energy | ■ | |
Measurement of electrical parameters | U、I | ■ |
P、Q、S、PF、F | ■ | |
Measurement of harmonics | 2~31ST Voltage and current harmonic | ■ |
LCD Display | 12-bit section LCD display, background light | ■ |
Key programming | 3 keys to communication and set parameters | ■ |
Pulse output | Active pulse output | ■ |
Multi-tariff and functions | Adapt 4 time zones, 2 time interval lists, 14 time intervals by day, and 4 tariff rates | □ |
Max demand and occurrence time | □ | |
Frozen data on the last 48 months, the last 90days | □ | |
Date, time | □ | |
Communication | Communication interface: RS485, Communication protocol: MODBUS-RTU | ■ |
| Project | Performance parameter | ||
| Specification | 3 phase 3 wires, 3 phase 4 wires | ||
| Measurement | Voltage | Reference voltage | 3×100V\3×380Vac、3×57.7/100Vac、 3×220/380Vac (Can normally work under 1.2 times of rated voltage) |
| Consumption | <10VA(Single phase) | ||
| Impedance | >2MΩ | ||
| Accuracy class | Error±0.2% | ||
| Currnt | Input current | 3×1(6)A, 3×10(80)A | |
| Consumption | <1VA Single phase rated current | ||
| Accuracy class | Error±0.2% | ||
| Power | Active, reactive, apparent power, error±0.5℅ | ||
| Frequency | 45~65Hz,Error±0.2% | ||
| Metering | Energy | Active energy(Accuracy class: 0.5) reactive energy(Accuracy class 2) | |
| Clock | ≤0.5s/d | ||
| Digit signal | Energy pulse output | 1 active photocoupler output | |
| Pulse | Width of pulse | 80±20ms | |
| Pulse constant | 400imp/kWh,10000imp/kWh(Correspond with the basic current) | ||
| Communication | Interface and communication protocol | RS485:Modbus RTU | |
| Range of Communication address | Modbus RTU:1~ 247; | ||
| Baud rate | 1200bps~19200bps | ||
| Environment | Working temperature | -25℃~+55℃ | |
| Relative humidity | ≤95℅(No condensation) | ||
![]()
| Diverse Electric Parameters Measurement ● kWh (3-phase positive Kilowatt-hours) ● kVarh (Kilovar-hours) ● Harmonic (2~31st voltage¤t)---Standard ● U (3-phase Voltage) ● I (3-phase Current) ● P (Power) ● Q (Reactive power) ● F (Frequency) ● S (Apparent power) ● PF (Power factor) | ![]() |
| Multi-rate/Flexible Tariff ● 4 Time zone ● 4 Tariff rate (Spike, Peak, Flat, Valley) ● 2 Time period list ● 14 Time period by day ● Data Frozen (last 48 months or last 90 days) ● Max demand and occurrence time | ![]() |
| HMI for Common Configuration ● PT or CT ratio ● Wiring methods (3P4W or 3P3W) ● Back linght time ● RS485 (MODBUS-RTU) communication setting | ![]() |
![]()
![]() | ![]() |
| Dimension of ADL400 (Current Input via Direct Connect) | Dimension of ADL400 (Current Input via CTs) |

Call us on:
Email Us:
No. 253, Yulv Road, Jiading Zone, Shanghai, China