Power supplies of the DDR-120/240/480 series represent converters from direct current (DC) to direct current (DC) of medium power with placement on a DIN rail of the TS-35/7.5 or 15 type. DDR-120/240/480 power supplies operate in the following input voltage ranges:
A range - from 9 to 18V (DC). Available only in the DDR-120 series.
B Range - from 16.8 to 33.6 V (DC). All episodes.
C range-from 33.6 to 67.2 V (DC). All episodes.
D range-from 67.2 to 154.6 V (DC). All episodes.
Features of DDR-120/240/480 power supplies are: extended input range 2: 1; output voltage adjustment +15%; cooling due to natural ventilation; certification for use in railway transport; Current Sharing function (for the DDR-240 and DDR-480 series); operation in a wide range of ambient temperatures - from -40 up to +70OC.
In the DDR-120/240/480 series of converters, the model is determined by the value of the output voltage from the standard range -12, 24, 48 V (for example, DDR-120A-12, DDR-480D-48). Output voltages from the series are not present in all power series. Please check the Specification.
