B7 Type Current Sensor

Introduce:

B7 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.

Applications:

  • 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 B7-05A B7-10A B7-15A B7-20A B7-25A B7-30A 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) Pin Arrangement
B7 Type Current Sensor-heyi 1 +15V
2 -15V
3 OUTPUT
4 0V
5 Primary In
6 Primary Out
Type a*(mm) d*(mm)
5 1.3 ø0.6
10 1.4 ø0.8
15 1.6 ø1.0
20 1.6 ø1.4
25 1.6 ø1.4
30 1.7 ø1.6
50 1.7 ø2.4*1.6
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
B7 Type Current Sensor-heyi ( Input signal )

( Output signal )

B7 Type Current Sensor-heyi ( Output voltage )










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    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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