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Shenzhen Socan Technologies Co.,Ltd

4th Floor, A3 Building,
Xin Jian Xing Industrial Park
Feng Xing Road, Guangming Street, Guangming New District,Shenzhen





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Product name :SCB21 Series Close Loop Current Sensor

product model:SCB21-100A, SCB21-200A

Series: SCB21
Ipn: 100A, 200A
Window size: 12.5*9.0mm

Close Loop current sensor, Rated current 100A, 200A, measures AC, DC And Impulse Currents

● Compact design, Small Size Competitive Cost

● High Overload Capability

● Fast response time

● High Level Of Electrical Isolation Between Primary And Secondary Circuits

● CE, RoHS Compliant

Electrical Data:

Parameters(25°C)     Model SCB21-100A SCB21-200A
Nominal Rms Current (Ipn) ±100AT ±200AT
Measuring Range (Ip) 200AT 300AT
Road Resistance Rmax 50~100Ω 20~80Ω
Output Signal ±100mA
Turns Ratio 1:1000 1: 2000
Measuring Resistance 80Ω 120KΩ
Working voltage DC    ±12V or ±15V (±5%)
Accuracy @ Ta=25°C ±0.5%
Linearity @ Ta=25°C ±0.1%
Offset Voltage < ±0.2mA < ±0.1mA
Offset temperature characteristics < ±0.2%/°C
Thermal drift of Vo Typical values ± 0.1mA, maximum ±0.5mA Typical values ± 0.05mA, maximum ±0.25mA
Di/Dt following accuracy >100A/us
Bandwidth DC ~100kHz
Response time < 1uS
Hysteresis offset < 0.5mA (if=F.S. 0<--- ---="">Nominal RMS Current)
Withstand voltage 3kVrms/50Hz/min
Current consumption 10mA + output current
Operating temperature – 40℃+ ~80℃
Storage temperature – 40℃+ ~85℃

Drawing & Dimension (in mm)


1.SCB21 Series is close-loop current sensor. There is galvanic isolation between primary and secondary circuit provides accurate electronic measurement of DC, AC or pulse currents.

2.Square perforation, mainly measure cooper conductor current.

3.Current output.

4. Advantages: Wide bandwidth, excellent accurary, good linearity and fast response.

Caution: Incorrect wiring may damage the sensor

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