The HAT 500-S from LEM is a Current Transducer with AC Input Current 500 A, DC Input Current -1500 to 1500 A, Output Current 0.02 A, Output Voltage -4 to 4 V, Supply Voltage -15 to 15 V. Tags: Panel Mount, AC Current Transducer, DC Current Transducer. More details for HAT 500-S can be seen below.