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
● 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
Potential Applications
● 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 µs
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
