Closed-loop current sensor / DC / leakage current SCD20 Series

Product catalog summary

Product Description
The SCD20 is a DC leakage current sensor utilizing magnetic modulation closed-loop technology for isolated measurement of small DC currents. It features a high isolation voltage of over 3000VAC between primary and secondary circuits, a temperature compensation circuit for zero drift control, and accurate measurement capabilities. The sensor is designed with a perforated input, unplugging terminals, and screw fastening for flat mounting. It complies with the UL94-V0 flame retardant rating and operates on a DC +12V power supply.

Applications
The sensor is suitable for use in various emerging industries, including electric power, industrial automation, and solar photovoltaic sectors.

Implementation Standards
The product adheres to several standards: GB/T 7665-2005, JB/T 25480-2010, JB/T 11205-2011, and SJ 20790-2000.

Technical Parameters

Electrical Data: The input power supply voltage range is +11 to +24 VDC, with a typical current consumption of 18 mA. The insulation withstand voltage is 3000 VAC.
Accuracy and Linearity: The accuracy is ±1.5% and linearity is ±1% at 25℃.
Temperature Range: Operating ambient temperature is -10 to 75℃, and storage temperature is -25 to 85℃.
Response Time: The response time is between 500 to 900 ms.

Model Parameters
The SCD20 model supports primary currents ranging from 10mA to 1A, with corresponding output voltages of 3V±2V (±1%).

Notes

Ensure the input power supply voltage (VC) is within the specified range to avoid inaccurate measurements or permanent device failure.
Incorrect wiring can damage the sensor, and the zero voltage can be adjusted as needed.

Catalog excerpts

Closed-loop current sensor / DC / leakage current SCD20 Series-1

DC Leakage Current Sensor Product description Features SCD series DC leakage current sensor, using the principle of magnetic modulation closed-loop, for isolated measurement of DC milliampere small current. The isolation voltage between primary and secondary is greater than 3000VAC. Temperature compensation circuit control, zero drift, accurate measurement. Perforated input, unplugging terminals, screw fastening flat mounting. Overall size(mm): 119(L)×31(W)×112(H)；Aperture：60mm Comply with UL94-V0 flame retardant rating. Power supply: DC +12V Applications Widely used in emerging industries and fields such as electric power, industrial automation, solar photovoltaic, etc. Implementation standards GB/T 7665-2005 JB/T 25480-2010 JB/T 11205-2011 SJ 20790-2000 Shenzhen SoCan Technologies Co.,Ltd SoCan is committed to continuously improving product quality, and the company reserves the right to update its products. www.szsocan.com 1/3 sales@szsoca

Open the catalog to page 1

Closed-loop current sensor / DC / leakage current SCD20 Series-2

Technical Parameters Model Parameters （25℃） Primary Current IPN (DC) Primary Current Max. Peak Value IPM(DC) Output voltage Vout @±IPN，RL=10KΩ Electrical Data Item Current consumption Ic Withstand resistance RINS @500V DC Output voltage Vout @IPN Input power supply voltage range Vc Output internal resistance ROUT Temperature coefficient of offset voltage TCVOE Operating ambient temperature range TA Storage ambient temperature range Ts Insulation withstand voltage VD@50Hz, 60s, 0.1mA Remark: Shenzhen SoCan Technologies Co.,Ltd SoCan is committed to continuously improving product quality, and the...

Open the catalog to page 2

Closed-loop current sensor / DC / leakage current SCD20 Series-3

If VC is less than the minimum value, the measurement will be inaccurate. If VC is greater than the maximum value, it may cause permanent failure of the measuring device. Notes: 1. Size error: ±1mm; 2. Primary aperture: φ60mm; 3. Fastening hole: φ6mm*2; 4. Output terminal: 2EDGVC-5.08-4P; 5. The IP indication direction is the positive direction of the current, OFS is the zero adjustment, and GIN is the output regulation; 6. Incorrect wiring may cause damage to the sensor; 7. The zero voltage of the sensor can be adjusted appropriately according to the needs of users; Shenzhen SoCan Technologies...

Open the catalog to page 3