HomeProductsEnergy monitoring and protectionAMC Series Programmable Power MetersAMC72L-E4/KC Three-phase multifunction power meter

AMC72L-E4/KC Three-phase multifunction power meter

The Acrel AMC series meters utilize AC sampling technology and can separately measure current, voltage, power, power factor, and electrical energy parameters in the power grid. The magnification can be adjusted using the membrane keypad. The meters feature an RS485 interface and Modbus protocol. They can convert the power signal into a standard analog DC signal. The Acrel AMC72L-E4/KC three-phase multifunction AC energy meter measures three-phase AC current in kWh, kVarh, I, U, kW, kVar, Hz, cosφ, etc., and measures the 2nd to 31st harmonics and the total harmonic. It features event, demand, and extreme value recording, as well as DI/DO and AI/AO functions.

  • Three-phase power meter
  • LCD display
  • I, U, kW, kvar, kVA, kWh, kvarh, Hz, PF
  • 2DI/2DO
  • Accuracy: 1 % (kWh); 0.5 % (active power)
  • RS485 and Modbus RTU protocols
  • 1Ep Pluse Edition
  • Standard and certificate: CE

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Product info

Three-phase multifunction power meter
Communication:RS485(Modbus RTU)
Advertisement:LCD display
Rated current:5A AC or 1A AC (via CTs)
Measurement accuracy:Active energy: Class 0.5
Nominal voltage:400 V AC LL (direct connection); 100 V AC LL (via PTs)
Installation:Panel mounted
Dimension (LBH):Panel size (L×W): 75*75mm
Cutout(L×W): 67*67mm
Depth (H): 94.3mm
Optional functions
/H:THDi, THDu, 2-31st harmonics
/SOE:Event recording
/K:4DI/2DO
/KM:2D1/2DO/1M
/F:Multiple tariffs
Auxiliary power supply:85-265V AC/DC; 24V or 48V DC

Technical data

Technical parameters Numerical
Entrance Nominal value

AC voltage: three-phase AC 100 V, 400 V, 660 V AC; Current: AC 1 A, 5 A;
overload Voltage: 1.2 times rated value (continuous current); 2 times rated value/1 second
Current: 1.2 times rated value (continuous current); 10 times rated value/1 second
 frequency   45Hz～65Hz
Power consumption The power consumption of each voltage and current input circuit is less than 0.5 VA
accuracy  0.5 class
function Advertisement LED or LCD
communication  RS485, Modbus RTU protocol; (1 start bit, 8 data bits, 1 stop bit, no parity) Baud rate 2400/4800/9600/19200 bps etc.
alarm  1-channel passive relay, contact capacity 3A/30 VDC, 3A/250 VAC, used for high, low, unbalance alarms, etc.
Analogous DC4~20mA,(Load < 500 Ω) (Note: A shielded cable is specially selected for the above signal input and output.)
DI/DO switching Entrance 4-channel or 2-channel dry contact input, built-in power supply
output 2-channel switching output, normally open relay contact, power: 3 A/30 VDC, 3 A/250 VAC
Relief supplies Voltage range   AC/DC 85-265V
Power consumption   <5VA
Power frequency withstand voltage  Between power supply terminal set and signal input, output terminal set 2 kV/1 min. (RMS) Between the case and all terminal sets (except the terminal set with a reference voltage of less than 40 V) AC 4 kV
Environment temperature Operating: -10℃～+55℃; Storage: -25°C ~+70°C
humidity ≤95 % relative humidity, no condensation, no corrosive gases  
Height ≤ 2500m  

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