The HAL 50-S from LEM is a Current Transducer with AC Input Current 50 A, DC Input Current -150 to 150 A, Output Voltage - 4 to 4 V, Supply Voltage - 15 to 15 V, Accuracy 0.01. Tags: Panel Mount, AC Current Transducer, DC Current Transducer. More details for HAL 50-S can be seen below.