Class 0.5S LCD remote reading MODBUS RTU RS485 smart digital watt power meter

 KPM53 Class 0.5 LCD remote reading MODBUS RTU RS485 smart digital watt energy meter

 Working power source

 Operating Voltage

AC85~265V/DC80~300V

 Rated power

<3VA

Input voltage

 Rated voltage

57.7/100V, 220/380V, 380/660A(needs customization)

 Sill value

5V

 Overload capacity

1.2 times rated voltage allowed, continuous work; 2 times the rated voltage allowed 1second

Power consumption

<0.5VA/phase(rated)

Measurement range

5~260VAC,

Frequency range

45~65Hz

Input current

Rated current

Default 5A,Input range 1-6A;Optional 1A,Input range 1-1.2A

Sill value

5A Configuration,5mA;1A Configuration,0.8mA

Overload capacity

1.2 times rated current allowed, continuous work; 20 times the rated current allowed 1 second

Power consumption

<0.75VA/phase(Rated current 5A);<0.25VA/phase(Rated current 1A)

Frequency range

45~65Hz

Input/Output

Switch value input

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

Relay output

2-way DO output,Contact capacity 250VAC/5A,30VDC/5A

Power quality monitor

Harmonic measurement

Voltage/current2~21th harmonic distortion rate,total harmonic distortion rate.

Harmonic distortion rate

Phase voltage, line voltage

 Imbalance rate

Voltage. current

 Measurement accuracy

Voltage

±0.2%(0.01V)

Current

±0.2%(0.01A)

Active power

±0.5%(0.1W)

Reactive power

±2.0%(0.1kvar)

Active energy

±0.5%(0.1kWh)

Reactive energy

±2.0%(0.1kvarh)

Power factor

±0.5%(0.001)

Frequency

±0.02Hz(0.01Hz)

Temperature

±1�?1�?/SPAN>)

Communication

Communication interface

RS485,Photoelectric isolation interface

Communication protocol

Modbus-RTU,1200~38400bps

 Electrical insulation

 Power frequency withstand voltage

AC2kV/min~1mA Input-output-power source (GB/T 13729)

Insulation resistance

>50MΩ                            (GB/T 13729)

Impact voltage

5kV(Peak),1.2/50us    (GB/T 13729)

 Working environment

 Operating temperature

-25�?~ +70�?/SPAN>

 Relative humidity

5%~95% No condensation

 Storage temperature

-30�?~ +75�?/SPAN>

Altitude

No more than 4000m

 Electromagnetic Compatibility

Surge(impact) immunity

GB/T 17626.5-2008,Level4

Electrical fast burst immunity

GB/T 17626.4-2008,Level4

Electrostatic discharge immunity

GB/T 17626.2-2006,Level4

Power frequency magnetic immunity

GB/T 17626.8-2006,Level4