The CR4180 - 150 from CR Magnetics is a Current Transducer with AC Input Current 0 to 150 A, Output Current 0.004 to 0.02 A, Supply Voltage 24 V, Accuracy 0.005, Frequency 0.02 to 5 kHz. Tags: DIN Rail Mount, Panel Mount, AC Current Transducer. More details for CR4180 - 150 can be seen below.