DDR-240 series is a Din Rail type DC-DC Converter with main features including DIN rail type easy installation.ultra slim width (40 mm) 2,1 wide input voltage ,fanless design ,-40+70 degree celsius wide operating temperture,4KVdc i/0 isolation 150% peak load current sharing ,DC OK adjustable output voltage and full protective function.this series of models has various input options :16.833.6V/33.667.2V/67.2154V and two output options.24V/48V and can be used for industrial & railway control,security control,communication system and other fields.2:1 wide input range -40+80 degree C wide working temperature 150% peak load capability current sharing up to 960W(3+1) DC output adjustable cooling by free air conversion can be installed on DIN rail TS-35/7.5 or 15 protection:short circuit/overload/over voltage/over temp/input reverse polarity/input under volt protection 4kVdc i/o isolation DC OK relay Contact remove ON-OFF control