The MCR-SL-CUC-300-U from Phoenix Contact is a Current Transducer with AC Input Current 0 to 300 A, DC Input Current 0 to 300 A, Output Voltage 0 to 10 V, Supply Voltage 20 to 30 V, Power Consumption 1.65 W. Tags: DIN Rail Mount, AC Current Transducer, DC Current Transducer. More details for MCR-SL-CUC-300-U can be seen below.