CSN Series closed loop current sensor, measures ac, dc or impulse current, 25 amp-turns nominal, ±56 amp-turns range, miniature housing, 2000 turnDescriptionThe 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.FeaturesPotential ApplicationsFeaturesCurrent sensing up to 1275 amps (depending on product listing)Measures ac, dc and impulse currentsCompetitive cost/performance ratioRapid responseHigh overload capabilityHigh level of electrical isolation between primary and secondary circuitsIndustrial operating temperature rangeSmall size and weightPotential ApplicationsVariable speed drivesOvercurrent protectionGround fault detectorsCurrent feedback control systemsRoboticsUPS and telecommunication power suppliesWelding power suppliesAutomotive - Battery management systemsWattmetersProduct SpecificationsProduct TypeClosed Loop LinearSensed Current Typeac or dcSensed Current Range±56 APackage TypeSeries Connect PCB MountOutput TypeCurrentContinuous Current±40 AOperate Current25 A RMS @ 25 °CSupply Current±12 mA OutputSupply Voltage±15.0 VdcOffset Current< ±0.3 mAOffset Current Drift< ±0.6 mACoil Resistance190 OhmResponse Time< 1 µsCoil Turns2000Output Nominal12.5 mAOperating Temperature-40 °C to 75 °C [-40 °F to 167 °F]Storage Temperature-40 °C to 90 °C [-40 °F to 194 °F]Measuring Resistance193 Ohm min., 722 Ohm max.Housing MaterialGlass-filled PBT (UL94-V0)MountingPCB on 9 PinsPinout Style3 PinAccuracy±1.0 %AvailabilityGlobalCommentLow cost miniature 25 A sensor.UNSPSC Code411121UNSPSC Commodity411121 TransducersSeries NameCSN