The HOP 500-SB from LEM is a Current Transducer with AC Input Current 500 A, DC Input Current -750 to 750 A, Output Current 0.02 A, Output Voltage -4 to 4 V, Supply Voltage +/- 12 to 15 V. Tags: Panel Mount, AC Current Transducer, DC Current Transducer. More details for HOP 500-SB can be seen below.