The W34LT2120 from Acopian Technical Company is a DC to DC Converter with Input Voltage 110 to 350 V, Output Voltage 1 34 V, Output Current 1 14.8 to 21.2 A, Output Power 720 W, Isolation Voltage 0.3 kV. Tags: DIN Rail Mount, Buck/Step down. More details for W34LT2120 can be seen below.