B8 Type Current Sensor


B8 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.

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 B8-05A B8-10A B8-15A B8-20A B8-25A B8-30A Unit
Rated current(Ipn) 5 10 15 20 25 30 A
Measure range(Ip) 10 20 30 40 50 60 A
Turns ratio(Np/Ns) 5:2500 3:3000 2:3000 1:2000 1:2500 1:3000 T
Internal resister 400 400 400 400 400 400 Ω
Size of input pins ¢0.6 ¢0.8 ¢1.0 ¢1.4 ¢1.4 ¢1.6 mm
Rated output @Ip=±Ipn               ±4±0.5% V
Supply voltage ±12V,±15V V
Power Consumption ≤25 mA
Zero offset voltage @Ip=0   ≤±30 mV
Offset voltage drift @ -40~+85℃    ≤±0.5 mV /℃
Linearity @Ip=0-±Ipn    ≤0.1 %FS
Response time @50A/μ S,10%-90%      ≤1 μS
Galvanic isolation @ 50HZ,AC,1min      2.5 KV
Mechanical dimension(for reference only) Note
B8 Type Current Sensor-heyi B8 Type Current Sensor-heyi 1. All dimensions are in mm.

2. Secondary pin size and tolerance: width:0.5±0.1mm;thickness:0.25±0.05mm

3. General tolerance ±1mm

General date Value Unit
Operating temperature(TA) -40 to +85
Storage temperature(TS) -40 to +125
Mass(approx) (M) 12 g
Pulse current signal response characteristic Effects of impulse noise
B8 Type Current Sensor-heyi ( Input signal )

( Output signal )

B8 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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