Meanwell DDR-480B-12 User manual

Installation Manual
Type：DDR DIN rail power supply（Series：DDR-120, DDR-240, DDR-480）
DDR-120A-12 INPUT: 9~18VDC 13.5A OUTPUT: 12V 7.1A (9~10.8Vin)
12V 8.3A (10.8~18Vin)
DDR-120A-24 INPUT: 9~18VDC 13.5A OUTPUT: 24V 3.6A (9~10.8Vin)
24V 4.2A (10.8~18Vin)
DDR-120A-48 INPUT: 9~18VDC 13.5A OUTPUT: 48V 1.8A (9~10.8Vin)
48V 2.1A (10.8~18Vin)
DDR-120B-12 INPUT: 16.8~33.6VDC 9A OUTPUT: 12V 9A (16.8~21.6Vin)
12V 10A (21.6~33.6Vin)
DDR-120B-24 INPUT: 16.8~33.6VDC 9A OUTPUT: 24V 4.5A (16.8~21.6Vin)
24V 5A (21.6~33.6Vin)
DDR-120B-48 INPUT: 16.8~33.6VDC 9A OUTPUT: 48V 2.3A (16.8~21.6Vin)
48V 2.5A (21.6~33.6Vin)
DDR-120C-12 INPUT: 33.6~67.2VDC 4.5A OUTPUT: 12V 9A (33.6~43.2Vin)
12V 10A (43.2~67.2Vin)
DDR-120C-24 INPUT: 33.6~67.2VDC 4.5A OUTPUT: 24V 4.5A (33.6~43.2Vin)
24V 5A (43.2~67.2Vin)
DDR-120C-48 INPUT: 33.6~67.2VDC 4.5A OUTPUT: 48V 2.3A (33.6~43.2Vin)
48V 2.5A (43.2~67.2Vin)
DDR-120D-12 INPUT: 67.2~154VDC 2.5A OUTPUT: 12V 9A (67.2~86.4Vin)
12V 10A (86.4~154Vin)
DDR-120D-24 INPUT: 67.2~154VDC 2.5A OUTPUT: 24V 4.5A (67.2~86.4Vin)
24V 5A (86.4~154Vin)
DDR-120D-48 INPUT: 67.2~154VDC 2.5A OUTPUT: 48V 2.3A (67.2~86.4Vin)
48V 2.5A (86.4~154Vin)
DDR-240B-24 INPUT: 16.8~33.6VDC 13.5A OUTPUT: 24V 8A (16.8~21.6Vin)
24V 10A (21.6~33.6Vin)
DDR-240B-48 INPUT: 16.8~33.6VDC 13.5A OUTPUT: 48V 4A (16.8~21.6Vin)
48V 5A (21.6~33.6Vin)
DDR-240C-24 INPUT: 33.6~67.2VDC 7.5A OUTPUT: 24V 9A (33.6~43.2Vin)
24V 10A (43.2~67.2Vin)
DDR-240C-48 INPUT: 33.6~67.2VDC 7.5A OUTPUT: 48V 4.5A (33.6~43.2Vin)
48V 5A (43.2~67.2Vin)
DDR-240D-24 INPUT: 67.2~154VDC 3.7A OUTPUT: 24V 9A (67.2~86.4Vin)
24V 10A (86.4~154Vin)
DDR-240D-48 INPUT: 67.2~154VDC 3.7A OUTPUT: 48V 4.5A (67.2~86.4Vin)
48V 5A (86.4~154Vin)
DDR-480B-12 INPUT: 16.8~33.6VDC 23A OUTPUT: 12V 26.7A (16.8~21.6Vin)
12V 33.4A (21.6~33.6Vin)
DDR-480B-24 INPUT: 16.8~33.6VDC 23A OUTPUT: 24V 16A (16.8~21.6Vin)
24V 20A (21.6~33.6Vin)
DDR-480B-48 INPUT: 16.8~33.6VDC 23A OUTPUT: 48V 8A (16.8~21.6Vin)
48V 10A (21.6~33.6Vin)

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.

Installation Manual
（3）Use copper wire only, and recommended wires are shown as below.
AWG 18 16 14 12 10
Rated Current of
Equipment (Amp) 7A 10A 15A 20A 30A
Cross-section of
Lead(mm2) 0.8 1.3 2.1 3.3 5.3
Note: 1. Current each wire carries should be de-rated to 80% of the current suggested
above when using 5 or more wires connected to the unit.
2. The maximum allowable wire cross-sectional area for the terminal of the
SDR-75 is 12AWG/2.5 mm2 .
Make sure that all strands of each stranded wire enter the terminal connection and the screw terminals are
securely fixed to prevent poor contact. If the power supply possesses multi-output terminals, please make
sure each contact is connected to wires to prevent too much current stress on a single contact.
（4）Use wires that can withstand temperatures of at least 80°C, such as UL1007.
（5）Recommended wire strapping length is 5mm (0.197”).
（6）Recommended screwdriver is 4mm, slotted type.
（7）The recommended torque setting for terminals is shown as below.
Model I/P O/P
DDR-120 6.9 kgf-cm (6 Lb-in) 6.9 kgf-cm (6 Lb-in)
DDR-240 8.06 kgf-cm (7 Lb-in) 5.13 kgf-cm (4.45 Lb-in)
DDR-480 10.3 kgf-cm (9 Lb-in) 8.06 kgf-cm (7 Lb-in)
（8）Suggested fuse is shown as below.
Model Fuse
DDR-120A T10A/L250V x2
DDR-120B T8A/L250V x2
DDR-120C T8A/L250V x1
DDR-120D T4A/L250V x1
DDR-240B T10A/L250V x2
DDR-240C T6.3A/L250V x2
DDR-240D T6.3A/L250V x1
DDR-480B T10A/L250V*5
DDR-480C T8A/L250V*3
DDR-480D T6.3A/L250V*3
（9）Mounting Instruction：
Mount as shown in figure only, with input terminals down, or else sufficient cooling will not be possible.
Admissible DIN rail：TS35/7.5 or TS35/15
For rail fastening：
（a）Tilt the unit slightly rearwards.
（b）Fit the unit over top hat rail.
（c）Slide it downward until it hits the stop.
（d）Press against the bottom for locking.

Installation Manual
3
12
4
（e）Shake the unit slightly to check the locking action.
（10）For other information about the products, please refer to www.meanwell.com for details.
Warning / Caution !!
（1）Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Please do
not remove the case of the power supply by yourself!
（2）Risk of electric arcs and electric shock (danger to life). Connecting both the primary and the secondary sides
together is not allowed.
（3）Risk of burn hazard. Do not touch the unit in operation and shortly after disconnection!
（4）Risk of fire and short circuit. The openings should be protected from foreign objects or dripping liquids.
（5）Only install the unit in a pollution degree 2 environment (Note.1).
（6）Please do not install the unit in places with high moisture or near the water.
（7）The maximum operating temperature is 55°C for DDR-120 series , 50°C for DDR-240 series and 60°C for
DDR-480 series. Please do not install the unit in places with high ambient temperature or near fire source.
（8）The FG ( ) must be connected to PE (Protective Earth).
（9）Output current and output wattage must not exceed the rated value on its specification.
（10）Disconnect system from supply voltage:
Before commencing any installation, maintenance or modification work: Disconnect your system from
supply voltage. Make sure that inadvertent connection in circuit will be impossible!
（11）For continued protection against risk of fire, replace only with same type and rating of fuse.
Pour ne pas compromettre la protection contre les risqué d’incendie, remplacer par un fusible de même
type et de memes caractéristiques nominales.
Note.1: Pollution Degree 2 applies where there is only non-conductive pollution that might temporarily become
conductive due to occasional condensation. Generally refer to dry, well-ventilated locations, such as
control cabinets.
"Click"

Installation Manual
Manufacturer：
MEAN WELL ENTERPRISES Co., LTD.
No.28, Wuquan 3rd Rd., Wugu Dist.,
New Taipei City 24891, Taiwan
Tel: [phone]
Web: www.meanwell.com
Branch Office：
China
MEAN WELL (GUANGZHOU)
ENTERPRISES Co., LTD.
2F, A Building, Yuean lndustry Park,
Huangcun,Dongpu Yown, Tianhe
District, Gungzhou, China
Post Code:510660
Tel: [phone]
Web: www.meanwell.com.cn
China
MEAN WELL (GUANGZHOU)
ENTERPRISES Co., LTD.
No.11, Jingu South Road, Huadong
Town, Huadu Distric, Guangzhou,
Gungzhou, China
Tel: [phone]
Web: www.meanwell.com.cn
China
SUZHOU MEAN WELL
TECHNOLOGY Co., LTD.
No.77, Jian-Ming Rd. Dong-Qiao,
Pan-Yang lnd. Park, Huang-Dai
Town, Xiang-Cheng District,
Suzhou, Jiang-Su, China
Post Code:215152
Tel: [phone]
Web: www.meanwell.cc
U.S.A.
MEAN WELL USA, INC.
44030 Fremont Blvd., Fremont,
CA 94538, U.S.A.
Tel: [phone]
Web: www.meanwellusa.com
Europe
MEAN WELL EUROPE B.V.
Langs de Werf 8, 1185XT Amstelveen, The
Netherlands
Tel: [phone]
Web: www.meanwell.eu

Declaration of China RoHS Conformity
In order to reduce the impacts on the environment and take the more responsibility for protecting the
earth, MEAN WELL is confirming and announcing the conformity to China RoHS, an
Administrative Measures for the Restriction of the Use of Hazardous Substances in Electrical and
Electronic Products.
Environment Friendly Use Period Label
Observing SJT 11364-2014, Marking for the Restricted Use of Hazardous
Substances in Electronic and Electrical Products
Observing SJ/Z 11388-2009, General Guidelines of Environment-friendly
Use Period of Electronic Information ProductsAppendix B, adopting
table look-up to verify the Environment Friendly Use Period
Names and Contents of Hazardous Substances Lists
Part Name
Hazardous Substances
Lead
(Pb)
Mercury
(Hg)
Cadmium
(Cd)
Hexavalent
chromium
(Cr6+)
Polybrominated
biphenyls
(PBB)
Polybrominated
diphenyl ethers
(PBDE)
PCB and its
components
X
O
X
O
O
O
Metal structure
parts
X
O
O
O
O
O
Plastic structure
parts
O
O
O
O
O
O
Accessories
O
O
O
O
O
O
Cables
X
O
O
O
O
O
O: The concentration of the hazardous substances within the homogeneous material of that product is less than
the concentration limits set by GB/T 26572-2011.
X: The concentration of the hazardous substances within the homogeneous material of that product is over the
concentration limits set by GB/T 26572-2011; however, it follows the standard advised by 2011/65/EU.

Declaration of China VOC Conformity
In order to reduce the impacts on the environment and take the more responsibility
for protecting the earth, MEAN WELL is confirming and announcing the conformity to
China’s Standardization Administration Releases VOC Standards
Standard No. Name of the Standard
GB 30981-2020 Limit of harmful substances of industrial protective coatings
GB 33372-2020 Limits for volatile organic compounds content in adhesive
GB 38507-2020 Limits for volatile organic compounds (VOCs) In printing ink
GB 38508-2020 Limits for volatile organic compounds content in cleaning agents

Declaration of Five PBT TSCA Conformity
In order to reduce the impacts on the environment and take the more responsibility
for protecting the earth, MEAN WELL hereby confirms that MEAN WELL product
series comply with Use and Risk Management for Five PBT Chemicals under TSCA
section 6(h)
CAS No.
Substance Name
1163-19-5
Decabromodiphenyl ether (DecaBDE)
68937-41-7
Phenol, isopropylated, phosphate (3:1)
PIP (3:1)
732-26-3
2,4,6-Tris (tert-butyl) phenol (2,4,6-TTBP)
133-49-3
Pentachlorothiophenol (PCTP)
87-68-3
Hexachlorobutadiene (HCBD)