Page 97 MEAN WELL INDUSTRIAL POWER SUPPLY CATALOG

DC/DC Converter 120~240W DIN Rail Type

Features
• ITE & Railway safety
NEW
• 2:1 wide input range
• 150% peak load capability
• Protections:
Short circuit / Overload / Over voltage / Over temperature /
Input reverse polarity / Input under voltage
• Cooling by free air convection
• Can be installed on DIN rail TS-35/7.5 or 15
• 4000VDC I/O isolation (Rainforce isolation)
• -40~+70 C wide operating temperature
o
• DC output adjustable

DDR-120 DDR-240 • DC OK relay contact (DDR-240 only)
• Current sharing up to 960W (3+1) for DDR-240
• 3 years warranty

General Specification (Please refer to www.meanwell.com for detail spec.) Industrial

Model No. DDR-120 DDR-240

DC input range A: 9~18V, B: 16.8~33.6V, C: 33.6~67.2V, D: 67.2~154V B: 16.8~33.6V, C: 33.6~67.2V, D: 67.2~154V
Line regulation (1 sec.) ±0.5%
Load regulation (max.) ±1%
Overload protection 105%~135% rated output power for more than 3 seconds and then shut down O/P voltage with auto-recovery
Over voltage protection 120%~135% Shut down O/P voltage, re-power on to recover
Withstand voltage I/P-O/P: 4kVDC, I/P-FG: 2.5kVDC, O/P-FG: 2.5kVDC
Isolation resistance 100MΩ@500VDC
Working temperature(min.) -40~+70°C (refer to output derating curve)

Safety Industrial IEC62368-1(LVD), EAC TP TC 004
standards Railway EN50155 / IEC60571, IEC61373, EN45545-2 (except for 9~18Vin)
EMC standards EN55032 class B, EN61000-3,-2,-3, EN61000-4-2,3,4,5,6,8, EAC TP TC 020; EN50121-3-2 (except for 9~18Vin)
Dimension (LxWxH)(mm) 32x 125.2x 102 40x 125.2x 113.5

120W DDR-120 240W DDR-240

R&N
Vin
Vout
R&N
Vin
Vout
Model No. (VDC) (VDC) Iout (mVp-p) Effi. Model No. (VDC) (VDC) Iout (mVp-p) Effi.
(%)
(A)
(A)
(%)
DDR-120A-12 9~18 12 8.3 50 88.5
DDR-240B-24 16.8~33.6 24 10 120 90
DDR-120B-12 16.8~33.6 12 10 50 89.0
DDR-120C-12 33.6~67.2 12 10 50 89.5
DDR-120D-12 67.2~154 12 10 50 89.5 DDR-240C-24 33.6~67.2 24 10 120 91
DDR-120A-24 9~18 24 4.2 50 88.5
DDR-240D-24 67.2~154 24 10 120 92
DDR-120B-24 16.8~33.6 24 5 50 89.5
DDR-120C-24 33.6~67.2 24 5 50 91.0
DDR-120D-24 67.2~154 24 5 50 91.0 DDR-240B-48 16.8~33.6 48 5 200 91
DDR-120A-48 9~18 48 2.1 50 88.5
DDR-240C-48 33.6~67.2 48 5 200 92
DDR-120B-48 16.8~33.2 48 2.5 50 91.0
DDR-120C-48 33.6~67.2 48 2.5 50 92.0
DDR-240D-48 67.2~154 48 5 200 93
DDR-120D-48 67.2~154 48 2.5 50 91.5

94