Product Category


B2X Type Current Sensor


B2X series current sensor is a closed loop device based on the measuring principle of the hall effect and null balance method, with a galvanic isolation between primary and secondary circuit. It provides accurate electronic measurement of DC, AC or pulsed currents.

Directions for use:

  • When the current will be measured goes through a sensor, the current will be measured at the output end. (Note: The false wiring may result in the damage of the sensor)
  • Custom design in the different rated input current and the output current are available.


  • AC variable speed drives
  • Static converters for DC motor drives
  • Battery supplied applications.
  • Uninterruptible Power Supplies (UPS).
  • Switched Mode Power Supplies (SMPS).
  • Power supplies for welding applications.
Type B2X-1A B2X-2A B2X-3A B2X-5A Unit
Rated current(Ipn) 1 2 3 5 A
Measure range(Ip) 2 4 6 10 A
Turns ratio(Np/Ns) 25:1000 12:960 8:960 5:1000 T
Measure resister 100~460 100~460 100~205 100~205 Ω
Rated output 25 25 25 25 mA
Supply voltage ±12,±15 V
Power Consumption ≤20+ IpX(Np/Ns) mA
Offset current @Ip=0     ±0.15 mA
Offset drift @ -40~+85℃     ≤±0.4 mA
Linearity @Ip=0-±Ipn     ≤0.1 %FS
Response time @100A/μ S,10%-90%     ≤1 μS
Galvanic isolation @ 50HZ,AC,1min      2.5 KV
Mechanical dimension(for reference only) Note
B2X Type Current Sensor-heyi 1. All dimensions are in mm.
2. General tolerance ±1mm.
General date Value Unit
Operating temperature(TA) -40 to +85
Storage temperature(TS) -40 to +125
Mass(approx) (M) 22 g
Pulse current signal response characteristic Effects of impulse noise
B2X Type Current Sensor-heyi ( Input signal )

( Output signal )

B2X Type Current Sensor-heyi ( Output voltage )

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