JSY-MK-172 AC 2-way charging pile electric energy metering module


  • Collect the electrical parameters of two AC charging piles, including voltage, current, power, electric energy and other electrical parameters.
  • 2 AC magnetic hold relay control.
  • The special measuring chip is adopted, and the effective value measurement method has high measurement accuracy.
  • The communication protocol adopts standard Modbus RTU, which has good compatibility and is convenient for programming.
  • RS-485 communication interface with one ESD protection circuit.
  • Wide working voltage dc9 ~ 50V.
  • It can be changed and customized according to customer requirements.

Product Detail

Product Tags


Jsy-mk-172 AC 2-way electric energy metering module can be widely used in charging piles, energy-saving transformation, electric power, communication, railway, transportation, environmental protection, petrochemical, steel and other industries to monitor the AC and power consumption of AC equipment.

Technical Parameter

1. AC 2-way input
1) Voltage range: 0~350v (customizable).
2) Current range: 10A per circuit (customizable).
3) Signal processing: special metering chip is adopted, and 24 bit AD is adopted.
4) Overload capacity: 1.2 times the range is sustainable; The instantaneous (<20ms) current is 5 times, the voltage is 1.2 times, and the range is not damaged.
5) Input impedance: voltage channel >1k Ω /v, current channel ≤ 10m Ω.

2. Communication interface
1) Interface type: 1-way RS-485 communication interface.
2) Communication protocol: MODBUS-RTU protocol.
3) Data format: software can set "n, 8,1", "E, 8,1", "O, 8,1", "n, 8,2".
4) Communication rate: the baud rate of RS-485 communication interface can be set to 9600, 19200, 38400bps; The baud rate is 9600bps by default, and the data format is "n, 8,1".

3. Test output data
Voltage, current, power, electric energy and other electrical parameters.

4. Measurement accuracy
Voltage, current and power: ± 1.0%; Active kwh is level 1.

5. Electrical isolation
RS-485 interface, which is isolated from the power supply and each measured power supply; Isolation withstand voltage 1000VAC.

6. Power supply
1) Dc9~50v wide range power supply.
2) Typical power consumption: 165ma (12V).

7. Working environment
1) Working temperature: -20~+70 ℃; Storage temperature: -40~+85 ℃.
2) Relative humidity: 5~95%, no condensation (at 40 ℃).
3) Altitude: 0~3000 meters.
4) Environment: a place without explosion, corrosive gas and conductive dust, and without significant shaking, vibration and impact.

8. Temperature drift: ≤100ppm/℃.

9. Product size: 101*81mm.

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