The HVT-600U1S/A1 from Yuanxing Electronics is a Voltage Transducer with Accuracy 0.01, Input Voltage 600 to 720 V, Output Current 0.004 to 0.02 A, Supply Voltage ±12, Temperature Operating Range -25 to 85 Degree C. Tags: DIN Rail Mount, DC Voltage Transducer. More details for HVT-600U1S/A1 can be seen below.