CSNX25

Product Summary

The CSNX25 closed loop current sensor is 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 CSNX25 and presents an image of the primary current reduced by the number of secondary turns at any time. This current of the CSNX25 can be expressed as a voltage by passing it through a resistor.

Parametrics

CSNX25 specifications: (1)Sensor Type: Closed Loop Linear; (2)Sensed Current Type: ac or dc; (3)Sensed Current Range: ± 56 A; (4)Package Style: Series Connect PCB Mount; (5)Output Type: Current; (6)Maximum Continuous Current: ± 40 A; (7)Supply Current: ± 12 mA + output; (8)Supply Voltage: 4.75 Vdc to 5.25 Vdc; (9)Offset Current: < ± 0.03 mA; (10)Offset Current Drift: < ± 0.01 mA; (11)Coil Resistance @ 70 ℃: 50 Ohm; (12)Response Time: < 0.2 μs; (13)Coil Turns: 2000; (14)Output Nominal: 12.5 mA; (15)Operating Temperature Range: -40 ℃ to 85 ℃ [-40 °F to 185 °F]; (16)Storage Temperature Range: -40 ℃ to 90 ℃ [-40 °F to 194 °F]; (17)Minimum Measuring Resistance: 0 Ohm; (18)Maximum Measuring Resistance: 80 Ohm; (19)Housing Material: Glass-filled Polyamide (UL94-V0); (20)Mounting: PCB on 11 pins; (21)Pinout Style: Unipolar; (22)Accuracy: ± 0.24 %; (23)Availability: Global; (24)Comment: Unipolar supply sensor incorporating patented; (25)magnetoresistive sensing technology to achieve ultra-low offset; (26)drift with temperature.; (27)UNSPSC Code: 411121; (28)UNSPSC Commodity: 411121 Transducers; (29)Series Name: CSN Series.

Features

CSNX25 features: (1)Current sensing up to 1200 amps; (2)Measures ac, dc and impulse currents; (3)Competitive cost/performance ratio; (4)Rapid response; (5)High overload capability; (6)High level of electrical isolation between primary and secondary circuits; (7)Industrial operating temperature range; (8)Small size and weight.

Diagrams