Installation Manual
DDR-480C-12 INPUT:
33.6~67.2VDC 11.2A OUTPUT: 12V 30A (33.6~43.2Vin)
12V 33.4A (43.2~67.2Vin)
DDR-480C-24 INPUT:
33.6~67.2VDC 11.2A OUTPUT: 24V 18A (33.6~43.2Vin)
24V 20A (43.2~67.2Vin)
DDR-480C-48 INPUT:
33.6~67.2VDC 11.2A OUTPUT: 48V 9A (33.6~43.2Vin)
48V 10A (43.2~67.2Vin)
DDR-480D-12
INPUT: 67.2~154VDC 5A OUTPUT: 12V 30A (67.2~86.4Vin)
12V 33.4A (86.4~154Vin)
DDR-480D-24
INPUT: 67.2~154VDC 5A OUTPUT: 24V 18A (67.2~86.4Vin)
24V 20A (86.4~154Vin)
DDR-480D-48
INPUT: 67.2~154VDC 5A OUTPUT: 48V 9A (67.2~86.4Vin)
48V 10A (86.4~154Vin)
Introduction
DDR series is a DIN Rail type DC-DC converter with main features including DIN rail-type easy installation, ultra
slim width, 2:1 wide input voltage, fanless design, -40~+70
℃
wide operating temperature(-40~+80
℃
for DDR-480
series), 4kVdc I/O isolation, 150% peak load, current sharing, DC OK, adjustable output voltage and full protective
functions.
This series of models has various input options: 9~18V / 16.8~33.6V / 33.6~67.2V / 67.2~154V and various output
options: 12V / 24V / 48V and can be used for industrial & railway control, security control, communication system
and other fields. Suitable applications include DC buck/boost regulator, increasing system insulation level and
voltage drop compensation along cable...etc.
Installation
（
1
）
Always allow good ventilation clearances, 5mm left and right, 40mm above and 20mm below, around the unit
in use to prevent it from overheating.
（
2
）
The appropriate mounting orientation for the unit is vertical, the input terminals at the bottom and output on
the top. Mounting orientations other than that, such as upside down, horizontal, or table-top mounting, is not
allowed.
