The LA 305-S/SP4 from LEM is a Current Transducer with AC Input Current 300 A, DC Input Current -500 to 500 A, Output Current -0.02 A, Supply Voltage - 12 to 15 V, Accuracy 0.008. Tags: Panel Mount, AC Current Transducer, DC Current Transducer. More details for LA 305-S/SP4 can be seen below.