KPM51 Single phase smart power meter
KPM51 is a multifunction single phase smart power meters, it integrates all power parameter measurements, modbus communications, remote control, etc.
Features
It is multifunctional and cost-effective, can be independently used in different occasions power measurement and display, helping customers save investment and use of space, it has been widely used in various industries.
- Single phase smart power meter
- Full electrical parameter measurement:
- UL-L, UL-N, I, F, PF;
- P, Q, S, bidirectional energy, etc.
- High accuracy:
- U Class 0.2;I Class 0.2;
- P Class 0.5S; Active energy Class 0.5S
- Record function:
- Monthly average power factor and power data for the last three months
- Meter working time, load time statics
- Communication: RS485/Modbus-RTU
- Optional function: 2 digital inputs;2 digital outputs
- Optional function: PT100 temperature monitoring;4-20mA analog output
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Working power source |
Operating Voltage |
AC 85-265V/ DC 80-300V |
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Rated power consumption |
< 3VA |
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Input voltage |
Rated voltage |
110/220V |
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Overvoltage capability |
1.2 times rated voltage allowed, continuous work; 2 times the rated voltage allowed 10S |
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Rated power consumption |
<0.5VA(per phase) |
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Measurement range |
5~260VAC |
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Input current |
Rated current |
Default 5A, input range 1-6A; optional 1A, input range 1-1.2A |
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Overload capacity |
1.2 times rated current allowed, continuous work; 20 times the rated current allowed 1S |
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Rated power consumption |
＜0.75VA/phase（5A）; <0.25VA/phase (1A) |
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Measurement range |
5A：0~6A； 1A：0~1.2A |
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Measurement accuracy |
Voltage |
±0.2%（0.01V） |
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Current |
±0.2%（0.01A） |
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Active power |
±0.5%（0.01W） |
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Reactive power |
±2.0%（0.01var） |
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Power factor |
±0.5%（0.001） |
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Frequency |
±0.02 (0.01Hz) |
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Active energy |
±0.5%（0.1kwh） |
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Reactive energy |
±2.0%（0.1kvarh） |
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Temperature |
±1℃（1℃） |
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Communication |
communication port |
RS485，Photoelectric isolation interface |
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Communication protocol |
Modbus-RTU, 1200-38400BPS |
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DI & DO |
Switch value input |
2-way passive main line contact DI input, internal supply DC24V power supply |
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Relay output |
2-Way DO output, contact capacity 250VAC / 5A, 30VDC / 5A |
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Analog output |
Output range 4-20mA, overload 1.2 times |
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Temperature input |
Temperature range 0-100℃ |
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Working environment |
Operating temperature |
-25℃ ~ +70℃ |
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Storage temperature |
-30℃ ~ +75℃ |
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Relative humidity |
5% ~ 95% No condensation |
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Altitude |
Not more than 4000m |
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Electrical insulation |
Dielectric strength |
Power frequency voltage AC 2kV, working time 1 min |
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Insulation resistance |
＞50MΩ |
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Impact voltage |
5kV (Peak),1.2/50us |
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Electromagnetic Compatibility |
Electrostatic discharge immunity |
IEC61000-4-3, level 4 |
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Fast pulse group immunity |
IEC61000-4-4, level 4 |
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Surge immunity |
IEC61000-4-5, level 4 |
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Power frequency magnetic field immunity |
IEC61000-4-8, level 4 |
