KPM10 Three phase multifunction digital power meter

KPM10 Three phase multifunction digital power meter

KPM10 three-phase multifunction digital power meter was designed using advanced 32-bit ARM processor and digital signal processing technology. Intergate of three-phase electrical parameter measurement / display, power accumulation, fault alarm, harmonic measurement, digital inputs, relays Output and network communications in one. Standard 72 panel, large screen LCD screen, standard 1-way RS485 communication interface. With high precision, strong isolation, stable performance, anti-interference ability etc.

  • Three phase panel digital power meter
  • Full electrical parameter measurement: UL-L, UL-N, I, F, PF, P, Q, S, four-quadrant energy, etc.
  • High accuracy: U Class 0.2; I Class 0.2
  • High accuracyP Class 0.2S; Active energy Class 0.5S
  • Power quality analysis: 2-21st harmonic analysis; I/U Total distortion rate;
  • Power quality analysis: Crest coefficient; Valley coefficient;
  • Power quality analysis: Current imbalance rate Yi;Voltage imbalance rate Yv
  • Record function: Meter working time, load time statics
  • Communication:RS485/Modbus-RTU
  • Multi rate: Total 4 tariffs for 8 different time slots
  • Optional function: 2 digital inputs
  • Optional function: 2 digital outputs

Working power source

Operating Voltage

AC 85-265V/ DC 80-300V

Rated power consumption

< 3VA

Input voltage

Rated voltage


Overvoltage capability

1.2 times rated voltage allowed, continuous work;

2 times the rated voltage allowed 10s 

Rated power consumption

<0.5VA(per phase)

Measurement range


Input current

Rated current

Default 5A, input range 1-6A; optional 1A, input range 1-1.2A

Overload capacity

1.2 times rated current allowed, continuous work;

20 times the rated current allowed 1s

Rated power consumption

<0.75VA/phase(5A); <0.45VA/phase(1A)

Measurement range

5A:0~6A;  1A:0~1.2A

Power quality monitor

Harmonic measurement

Voltage/current 2-21st harmonic distortion rate,

Harmonic distortion rate

Phase voltage, phase current

Imbalance rate

Voltage, current

Measurement accuracy





Active power


Reactive power


Power factor




Active energy


Reactive energy



communication port

RS485,Photoelectric isolation interface

Communication protocol

Modbus-RTU, 1200-38400BPS


Switch value input

2-way passive main line contact DI input, internal supply DC24V power supply

Relay output

2-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A

Working environment

Operating temperature

-25℃ ~ +70℃

Storage temperature

-30℃ ~ +75℃

Relative humidity

5% ~ 95% No condensation


Not more than 4000m



Dielectric strength

Power frequency voltage AC 2kV, working time 1 min

Insulation resistance


Impact voltage

5kV (Peak),1.2/50us

Electromagnetic Compatibility

Electrostatic discharge immunity

IEC61000-4-3, level 4

Fast pulse group immunity

IEC61000-4-4, level 4

Surge immunity

IEC61000-4-5, level 4

Power frequency magnetic field immunity

IEC61000-4-8, level 4

KPM10RK Low-voltage three-phase three-wire typical wiring diagram


KPM10RK Low-voltage three-phase three-wire typical wiring diagram


KPM10 specification Jan 01,70
KPM10 User manual Jan 01,70

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