Ningbo CSR Times Transducer Technique Co., Ltd.

NA25B-P high accuracy sensor

NA25B-P high accuracy sensor
Product Detailed

high accuracy sensor
high accuracy sensorHigh accuracy Good linearity
Low thermal drift
Good current overload capability

high accuracy sensor

Applications:
For the electronic measurement of circuits: AC, DC, pulsed, mixed, with a galvanic isolation between the primary (high power) and the secondary (electronic) circuits.

Main technical data:
1. Normal current IPN: 25A rms
2. Measuring range IP: 0~+/-55A
3. Measuring resistance @+85ºC: RMmin RMmax
with ±12V @ ±25A: 0Ω 352Ω
@ ±55A: 0Ω 118Ω
with ±15V @ ±25A: 70Ω 466Ω
@ ±55A: 70Ω 170Ω
4. Secondary normal current: 25mA rms
5. Conversion ratio: 1-2-3:1000
6. Supply voltage(+/-5%): +/-12V~ +/-15V
7. Current consumption: 16mA+ Secondary output current
8. Isolation: Between primary and secondary + test winding + screen: 5kV rms/50Hz/1min

Accuracy – Dynamic performance
1. Accuracy @ IPN , TA=+25ºC: +/-0.8%
2. Non-linearity (0~+/-IPN ): +/-0.2%
3. Offset current Io @TA=+25ºC: +/-0.15mA
4. Residual current @ IP=0, after an overload of 3xIPN: less than +/-0.25mA
5. Thermal drift of Io @ 0 oC ~+70 oC: +/-0.6mA
@ -25 oC ~+85 oC: +/-0.7mA
6. Response time @10% of IP max:<200ns
7. Response time @90% of IP max:≤0.5us
8. di/dt accurately follewed: > 200A/us
9. Frequency bandwidth (-1dB): DC 0~200kHz

General data:
1. Operating temperature: -25 oC ~+85 oC
2. Storage temperature: -40oC ~+90oC
3. Secondary coil resistance: ≤ 76Ω
4. Weight: 22g
5. Standards: EN 50178

Features:
1. Hall effect measuring principle
2. Galvanic isolation between primary and secondary circuit
3. Insulated plastic case made of white PPO recognized according to UL 94-V0
4. The whole current transducer comply with RoHS Directive completely



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