Ningbo CSR Times Transducer Technique Co., Ltd.

Current Transducer
Product ID: NA25A-P

Current Transducer

Applications: For the electronic measurement of currents: AC, DC IMPL.,etc.,with galvanic isolation between the primary (high power) and the secondary (electronic) circuits. Main Technical Data: 1. Primary normal current IPN: 25A r.m.s 2. Primary current, measuring range IP: 0~+/-70A 3. Measuring resistance: RMmin RMmax with +/-12V @ +/-25A max: 54 ohm 360 ohm @ +/-70A max: 35 ohm 52 ohm with +/-15V @ +/-25A max: 54 ohm 470 ohm @ +/-70A max: 35 ohm 84 ohm 4. Secondary normal current: 25mA rms 5. Conversion ratio: 1-2-3-4:1000 6. Supply voltage(+/-5%): +/-12V~+/-15V 7. Current consumption: 12mA+ Secondary output current 8. Isolation test: Between the primary circuit to the secondary circuit(+.-.M):3kVrms/50Hz/1min Accuracy - Dynamic Performance Data: 1. Accuracy @ IPN, TA=+25¢XC , @+/-15V: +/-0.5% 2. Non-linearity: better than +/- 0.2% 3. Offset current: not more than +/-0.15mA(@+25¢XC) 4. Residual current @ IP=0, TA= +25¢XC, after an overload of 3xIP: +/-0.2mA 5. Thermal drift: +/-0.6mA (-40 ¢XC ~ +85 ¢XC) 6. Response time: not more than 1us 7. DI/DT accurately followed: better than 50A/us 8. Frequency Bandwidth (0.5dB): DC 0~150kHz General Data: 1. Operating temperature: -40¢XC ~ +85¢XC 2. Storage temperature: -40¢XC ~ +90 ¢XC 3. Secondary coil resistance: not more than 66 ohm 4. Weight: 17g 5. Standards: EN 50178
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