MEAN WELL Installation Manual
Type: DDR DIN rail power supply (Series: DDR-120, DDR-240, DDR-480)
DDR-120 Series Specifications
| Model | Input Voltage Range | Input Current | Output Voltage & Current |
|---|---|---|---|
| DDR-120A-12 | 9~18VDC | 13.5A | 12V 7.1A (9~10.8Vin) 12V 8.3A (10.8~18Vin) |
| DDR-120A-24 | 9~18VDC | 13.5A | 24V 3.6A (9~10.8Vin) 24V 4.2A (10.8~18Vin) |
| DDR-120A-48 | 9~18VDC | 13.5A | 48V 1.8A (9~10.8Vin) 48V 2.1A (10.8~18Vin) |
| DDR-120B-12 | 16.8~33.6VDC | 9A | 12V 9A (16.8~21.6Vin) 12V 10A (21.6~33.6Vin) |
| DDR-120B-24 | 16.8~33.6VDC | 9A | 24V 4.5A (16.8~21.6Vin) 24V 5A (21.6~33.6Vin) |
| DDR-120B-48 | 16.8~33.6VDC | 9A | 48V 2.3A (16.8~21.6Vin) 48V 2.5A (21.6~33.6Vin) |
| DDR-120C-12 | 33.6~67.2VDC | 4.5A | 12V 9A (33.6~43.2Vin) 12V 10A (43.2~67.2Vin) |
| DDR-120C-24 | 33.6~67.2VDC | 4.5A | 24V 4.5A (33.6~43.2Vin) 24V 5A (43.2~67.2Vin) |
| DDR-120C-48 | 33.6~67.2VDC | 4.5A | 48V 2.3A (33.6~43.2Vin) 48V 2.5A (43.2~67.2Vin) |
| DDR-120D-12 | 67.2~154VDC | 2.5A | 12V 9A (67.2~86.4Vin) 12V 10A (86.4~154Vin) |
| DDR-120D-24 | 67.2~154VDC | 2.5A | 24V 4.5A (67.2~86.4Vin) 24V 5A (86.4~154Vin) |
| DDR-120D-48 | 67.2~154VDC | 2.5A | 48V 2.3A (67.2~86.4Vin) 48V 2.5A (86.4~154Vin) |
DDR-240 Series Specifications
| Model | Input Voltage Range | Input Current | Output Voltage & Current |
|---|---|---|---|
| DDR-240B-24 | 16.8~33.6VDC | 13.5A | 24V 8A (16.8~21.6Vin) 24V 10A (21.6~33.6Vin) |
| DDR-240B-48 | 16.8~33.6VDC | 13.5A | 48V 4A (16.8~21.6Vin) 48V 5A (21.6~33.6Vin) |
| DDR-240C-24 | 33.6~67.2VDC | 7.5A | 24V 9A (33.6~43.2Vin) 24V 10A (43.2~67.2Vin) |
| DDR-240C-48 | 33.6~67.2VDC | 7.5A | 48V 4.5A (33.6~43.2Vin) 48V 5A (43.2~67.2Vin) |
| DDR-240D-24 | 67.2~154VDC | 3.7A | 24V 9A (67.2~86.4Vin) 24V 10A (86.4~154Vin) |
| DDR-240D-48 | 67.2~154VDC | 3.7A | 48V 4.5A (67.2~86.4Vin) 48V 5A (86.4~154Vin) |
DDR-480 Series Specifications
| Model | Input Voltage Range | Input Current | Output Voltage & Current |
|---|---|---|---|
| DDR-480B-12 | 16.8~33.6VDC | 23A | 12V 26.7A (16.8~21.6Vin) 12V 33.4A (21.6~33.6Vin) |
| DDR-480B-24 | 16.8~33.6VDC | 23A | 24V 16A (16.8~21.6Vin) 24V 20A (21.6~33.6Vin) |
| DDR-480B-48 | 16.8~33.6VDC | 23A | 48V 8A (16.8~21.6Vin) 48V 10A (21.6~33.6Vin) |
| DDR-480C-12 | 33.6~67.2VDC | 11.2A | 12V 30A (33.6~43.2Vin) 12V 33.4A (43.2~67.2Vin) |
| DDR-480C-24 | 33.6~67.2VDC | 11.2A | 24V 18A (33.6~43.2Vin) 24V 20A (43.2~67.2Vin) |
| DDR-480C-48 | 33.6~67.2VDC | 11.2A | 48V 9A (33.6~43.2Vin) 48V 10A (43.2~67.2Vin) |
| DDR-480D-12 | 67.2~154VDC | 5A | 12V 30A (67.2~86.4Vin) 12V 33.4A (86.4~154Vin) |
| DDR-480D-24 | 67.2~154VDC | 5A | 24V 18A (67.2~86.4Vin) 24V 20A (86.4~154Vin) |
| DDR-480D-48 | 67.2~154VDC | 5A | 48V 9A (67.2~86.4Vin) 48V 10A (86.4~154Vin) |
Introduction
The DDR series is a DIN Rail type DC-DC converter featuring DIN rail-type easy installation, ultra-slim width, 2:1 wide input voltage range, fanless design, and a wide operating temperature range of -40~+70°C (or -40~+80°C for DDR-480 series). It offers 4kVdc I/O isolation, 150% peak load capability, current sharing, DC OK signal, adjustable output voltage, and full protective functions.
This series supports various input options: 9~18V, 16.8~33.6V, 33.6~67.2V, and 67.2~154V, with output options of 12V, 24V, and 48V. It is suitable for industrial and railway control, security control, communication systems, and other fields. Applications include DC buck/boost regulators, increasing system insulation levels, and voltage drop compensation along cables.
Installation
- Always allow adequate ventilation clearances: 5mm on the left and right, 40mm above, and 20mm below the unit during operation to prevent overheating.
- The recommended mounting orientation is vertical, with input terminals at the bottom and output terminals at the top. Mounting orientations such as upside down, horizontal, or table-top are not permitted.
- Use copper wire only. Recommended wire specifications are provided in the table below. Note: 1. Current per wire should be de-rated to 80% when using 5 or more wires. 2. The maximum allowable wire cross-sectional area for the terminal of the SDR-75 is 12AWG/2.5 mm². Ensure all strands of stranded wire are securely inserted into the terminal connection. If multi-output terminals are present, ensure each contact is connected to prevent excessive current stress on a single contact.
| 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 |
Use wires that can withstand temperatures of at least 80°C, such as UL1007.
Recommended wire strapping length is 5mm (0.197”).
Recommended screwdriver is 4mm, slotted type.
The recommended torque setting for terminals is as follows:
| 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) |
Suggested fuse types are shown 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 |
Mounting Instruction:
Mount as shown in the figure below, with input terminals down. Other orientations may prevent sufficient cooling.
Admissible DIN rail: TS35/7.5 or TS35/15.
For rail fastening:
- Tilt the unit slightly rearwards.
- Fit the unit over the top hat rail.
- Slide it downward until it hits the stop.
- Press against the bottom for locking.
Diagram Description: The diagram shows four steps (a, b, c, d) for mounting the unit onto a DIN rail. Step (a) shows tilting the unit back. Step (b) shows placing the unit onto the rail. Step (c) shows sliding it down. Step (d) shows pressing to lock it in place.
Shake the unit slightly to check the locking action. Diagram Description: The diagram shows a sequence of four images illustrating the locking mechanism of the unit onto a DIN rail, culminating in a "Click" sound indicating successful locking.
For other information about the products, please refer to www.meanwell.com.
Warning / Caution !!
- Risk of electrical shock and energy hazard. All failures should be examined by a qualified technician. Do not remove the power supply case yourself.
- Risk of electric arcs and electric shock (danger to life). Connecting both the primary and secondary sides together is not allowed.
- Risk of burn hazard. Do not touch the unit during operation or shortly after disconnection.
- Risk of fire and short circuit. Protect openings from foreign objects or dripping liquids.
- Only install the unit in a pollution degree 2 environment (Note.1).
- Do not install the unit in places with high moisture or near water.
- Maximum operating temperature: 55°C for DDR-120 series, 50°C for DDR-240 series, and 60°C for DDR-480 series. Avoid installation in places with high ambient temperature or near fire sources.
- The FG [ground symbol ⏚] must be connected to PE (Protective Earth).
- Output current and output wattage must not exceed the rated values specified.
- Disconnect system from supply voltage: Before commencing any installation, maintenance, or modification work, disconnect your system from the supply voltage. Ensure inadvertent connection in the circuit is impossible.
- For continued protection against fire risk, replace fuses only with the same type and rating. (Original French: Pour ne pas compromettre la protection contre les risques d'incendie, remplacer par un fusible de même type et de mêmes caractéristiques nominales.)
Note.1: Pollution Degree 2 applies to environments with only non-conductive pollution that might temporarily become conductive due to occasional condensation. Generally refers to dry, well-ventilated locations, such as control cabinets.
Manufacturer and Branch Offices
Manufacturer
MEAN WELL ENTERPRISES CO., LTD.
No.28, Wuquan 3rd Rd., Wugu Dist., New Taipei City 24891, Taiwan
Tel: +886-2-2299-6100
Web: www.meanwell.com
Branch Offices
China
MEAN WELL (GUANGZHOU) ENTERPRISES Co., LTD.
2F, A Building, Yuean Industry Park, Huangcun, Dongpu Town, Tianhe District, Guangzhou, China
Post Code:510660
Tel: +86-20-2887-1200
Web: www.meanwell.com.cn
China
MEAN WELL (GUANGZHOU) ENTERPRISES Co., LTD.
No.11, Jingu South Road, Huadong Town, Huadu District, Guangzhou, China
Tel: +86-20-3773-7100
Web: www.meanwell.com.cn
China
SUZHOU MEAN WELL TECHNOLOGY CO., LTD.
No.77, Jian-Ming Rd. Dong-Qiao, Pan-Yang Ind. Park, Huang-Dai Town, Xiang-Cheng District, Suzhou, Jiang-Su, China
Post Code:215152
Tel: +86-512-6508-8600
Web: www.meanwell.cc
U.S.A.
MEAN WELL USA, INC.
44030 Fremont Blvd., Fremont, CA 94538, U.S.A.
Tel: +1-510-683-8886
Web: www.meanwellusa.com
Europe
MEAN WELL EUROPE B.V.
Langs de Werf 8, 1185XT Amstelveen, The Netherlands
Tel: +31-20-758-6000
Web: www.meanwell.eu
Declaration of China RoHS Conformity
In order to reduce the impacts on the environment and take more responsibility for protecting the earth, MEAN WELL confirms 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
10 years
Names and Contents of Hazardous Substances Lists
| Part Name | Lead (Pb) | Mercury (Hg) | Cadmium (Cd) | Hexavalent chromium (Cr6+) | Polybrominated biphenyls (PBB) | Polybrominated diphenyl ethers (PBDE) |
|---|---|---|---|---|---|---|
| PCB and its components | X | O | O | 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 more responsibility for protecting the earth, MEAN WELL confirms 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 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) |
