The CSNA111 is a closed loop linear 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 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.
Current sensing up to 1275A (depending on product listing)
Measures AC, DC and impulse currents
Rapid response
High overload capability
High level of electrical isolation between primary and secondary circuits
Industrial operating temperature range
Small size and weight
90R coil resistance
1000 coil turns
Polycarbonate/ABS blend (UL94-V0) housing
PCB on 3-pin mounting
Offset pinout style
Do not use this product as safety or emergency stop devices or in any other application where failure of the product could result in personal injury.
