B203XT Type Current Sensor


B203XT 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, the size of primary doesn’t affect test precision, no matter the location of primary in the hole of current sensor. It can really measure resolution 1000:1 and uses for precision measurement of DC, AC and pulse current.

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 B203XT-10A B203XT-25A B203XT-50A B203XT-75A B203XT-100A Unit
Rated current(Ipn) ±10 ±25 ±50 ±75 ±100 A
Measure range(Ip) 0—±15 0—±37 0—±75 0—±90 0—±120 A
Turns ratio(Np/Ns) 1:1200 1:1200 1:1200 1:1500 1:2000 T
Inside measuring resistance 30±0.1% 12±0.1% 6±0.1% 5±0.1% 5±0.1% Ω
Rated output @Ip=±Ipn               ±1±0.2% V
Supply voltage +5V V
Power Consumption 20+ IpX(Np/Ns) mA
Reference voltage +2.5±0.4% V
Zero voltage @Ip=0      +2.5±0.4% V
Offset drift @ -40~+85℃     ≤±0.05 mV /℃
Output drift @ -40~+85℃      ≤±0.05 mV /℃
Linearity @Ip=0-±Ipn     ≤0.1 %FS
Response time @100A/μ S,10%-90%       ≤0.5 μs
Galvanic isolation @ 50HZ,AC,1min      3 KV
Bandwidth @ -3db      0~200 KHZ
Mechanical dimension(for reference only) Note
B203XT 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) 15 g
Pulse current signal response characteristic Effects of impulse noise
B203XT Type Current Sensor-heyi ( Input signal )

( Output signal )

B203XT Type Current Sensor-heyi ( Output voltage )

    contact us

    24Hs online service   365Ds NON-Stop Production   20Ys Professional Manufacturers Professional designer and manufacturer of current transformer,cooperated with Siemens ,schneider Fuji electrical softbank LG samdsung.
    Company HEYI Electrical CO.,LTD Contact person Bethy
    Tel 86-13968747975 E-mail bethy@heyiele.com
    ADD Xinguang Ind.Zone, Liushi Town, Wenzhou, Zhejiang, China


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