AMC72L-E4/KC Multifunction Panel Power Meter
Characteristic
Communication
RS485 Communication
Modbus-RTU Protocol
Baud Rate: 1200–38400bps
Display
LCD Display
System Time Display
Parameter Setting and Control via Keys
Rated U and l
Three-phase Four-wire
Rated Voltage: AC 3×57.7V/100V, AC 3×220V/380V
Rated Current: AC 1A or 5A
Frequency: 45–65Hz
Voltage Overload: 1.2× continuous, 2× for 1s
Current Overload: 1.2× continuous, 10× for 1s
General
AMC72L-E4/KC is a 72-size panel-mounted multifunction power meter designed for electrical parameter measurement, energy metering and power monitoring in three-phase four-wire systems.It measures three-phase voltage and current, zero-sequence voltage and current, active power, reactive power, apparent power, power factor, frequency, voltage phase angle, voltage/current unbalance, forward and reverse power and four-quadrant energy.The meter is equipped with an LCD display, RS485 communication and configurable digital input/output functions, making it suitable for power distribution systems, industrial facilities, commercial buildings, SCADA systems and energy management systems.
Function
Accuracy
Voltage & Current: Class 0.2
Active Power: Class 0.5
Reactive Power: Class 1.0
Active Energy: Class 0.5
Reactive Energy: Class 1.0
Frequency: 0.05Hz
Frequency
45–65Hz
Power Quality
Voltage phase angle
Voltage unbalance
Current unbalance
Energy Measurement
Forward and reverse power
Four-quadrant energy metering
Communication
RS485
Modbus-RTU
Baud Rate: 1200–38400bps
Input & Output
2DI + 2DO + 1 Energy Pulse
or
4DI + 2DO
Switching Input
Dry contact input, built-in power supply
Relay Output
Normally open contact
AC 250V / 3A
DC 30V / 3A
Auxiliary Power Supply
AC/DC 85–265V
Power Consumption ≤10VA
Environment
Operating Temperature: -25°C to +65°C
Storage Temperature: -40°C to +80°C
Relative Humidity: ≤93%RH, non-condensing
Altitude: ≤2500m
Wiring
Installation
Typical connection
| Item | Parameter |
|---|---|
| Wiring | Three-phase Four-wire |
| Frequency | 45–65Hz |
| Rated Voltage | AC 3×57.7V/100V, AC 3×220V/380V |
| Voltage Overload | 1.2 times continuous; 2 times for 1s |
| Voltage Consumption | <0.5VA |
| Rated Current | AC 1A / 5A |
| Current Overload | 1.2 times continuous; 10 times for 1s |
| Current Consumption | <0.5VA |
| Voltage Accuracy | Class 0.2 |
| Current Accuracy | Class 0.2 |
| Active Power Accuracy | Class 0.5 |
| Active Energy Accuracy | Class 0.5 |
| Reactive Power Accuracy | Class 1.0 |
| Reactive Energy Accuracy | Class 1.0 |
| Frequency Accuracy | 0.05Hz |
| Communication | RS485 |
| Protocol | Modbus-RTU |
| Baud Rate | 1200–38400bps |
| Digital Input | Dry Contact Input |
| Relay Output | Normally Open Contact |
| Relay Contact Capacity | AC 250V/3A, DC 30V/3A |
| Energy Pulse | Open-collector Optocoupler Output |
| Pulse Constant | 10000 imp/kWh, Settable |
| Auxiliary Power | AC/DC 85–265V |
| Auxiliary Power Consumption | ≤10VA |
| Operating Temperature | -25℃～+65℃ |
| Storage Temperature | -40℃～+80℃ |
| Humidity | ≤93%RH, Non-condensing |
| Altitude | ≤2500m |
| Function | Support |
|---|---|
| Three-phase Voltage | ✓ |
| Zero-sequence Voltage | ✓ |
| Three-phase Current | ✓ |
| Zero-sequence Current | ✓ |
| Active Power | ✓ |
| Reactive Power | ✓ |
| Apparent Power | ✓ |
| Power Factor | ✓ |
| Frequency | ✓ |
| Voltage Phase Angle | ✓ |
| Voltage Unbalance | ✓ |
| Current Unbalance | ✓ |
| Forward / Reverse Power | ✓ |
| Four-quadrant Energy | ✓ |
| System Time Display | ✓ |
| RS485 | ✓ |
| Modbus-RTU | ✓ |
| Digital Input | ✓ |
| Relay Output | ✓ |
| Energy Pulse Output | Optional Configuration |
| LCD Display | ✓ |
