CSNE151-100 CSN Series closed loop current sensor, measures ac, dc or impulse current, 25 amp-turns nominal, 90 amp-turns range, 1000 turn Actual product appearance may vary. Features Potential Applications Current sensing up to 1275 amps (depending on product listing) Measures ac, dc and impulse currents Competitive cost/performance ratio Rapid response High overload capability High level of electrical isolation between primary and secondary circuits Industrial operating temperature range Small size and weight Variable speed drives Overcurrent protection Ground fault detectors Current feedback control systems Robotics UPS and telecommunication power supplies Welding power supplies Automotive - Battery management systems Wattmeters Description The CSN Series of closed loop current sensors are based on the principles of the Magnetoresistive or Hall effects, and the null balance or zero magnetic flux method (feedback system). The magnetic flux in the sensor core is constantly controlled at zero. The amount of current required to balance zero flux is the measure of the primary current flowing through the conductor, multiplied by the ratio of the primary to secondary windings. This closed loop current is the output from the device and presents an image of the primary current reduced by the number of secondary turns at any time. This current can be expressed as a voltage by passing it through a resistor. Product Specifications Product Type Closed Loop Linear Sensed Current Type ac or dc Sensed Current Range 90 A Package Style Series Connect PCB Mount Output Type Current Maximum Continuous Current 50 A Nominal Operate Current @ 25 C 25 A RMS Supply Current 12 mA + output Supply Voltage 12.0 Vdc to 15.0 Vdc Offset Current < 0.15 mA Offset Current Drift < 0.6 mA Coil Resistance @ 25 C 66 Ohm Response Time < 0.2 s Coil Turns 1000 Output Nominal 25 mA Operating Temperature Range -40 C to 85 C [-40 F to 185 F] Storage Temperature Range -40 C to 90 C [-40 F to 194 F] Minimum Measuring Resistance 54 Ohm Maximum Measuring Resistance 360 Ohm Housing Material Glass-filled PBT (UL94-V0) Mounting PCB on 11 pins Pinout Style 4 pin Accuracy 0.5 % Availability Global Comment Miniature 25 A sensor with four integral primary turns. (Accuracy guaranteed to 90 A.) UNSPSC Code 411121 UNSPSC Commodity 411121 Transducers Series Name CSN