The CASR 50-NP from LEM is a Current Transducer with AC Input Current 50 A, DC Input Current -150 to 150 A, Output Current 0.015 to 0.02 A, Output Voltage 0.375 to 4.625 V, Supply Voltage -5 to 5 V. Tags: PCB Mount, AC Current Transducer, DC Current Transducer. More details for CASR 50-NP can be seen below.