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Mean Well DDR-480B-12 DC-DC Converter - 400.8W - 16.8~33.6V in 12V out 33.4A
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Mean Well DDR-480B-12 DC-DC Converter - 400.8W - 16.8~33.6V in 12V ...
The DDR-480B is a 400.8W Mean Well DC-DC converter (input: 16.8~33.6VDC, operating temperature: -40~+80°C).
Key Features
- ✓ Input voltage: 16.8~33.6VDC
- ✓ Output voltage (max): 12V
- ✓ Rated output current: 33.4A
- ✓ I/O isolation: 500V
- ✓ Operating temperature: -40~+80°C
- ✓ Safety certifications: EMC
- ✓ 3 year warranty
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BrandMean Well
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SeriesDDR Series
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Power Rating400.8 Watt
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Output Voltage12 Volt
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Rated Current33.4 Ampere
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Input Voltage16.8V~33.6V
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No of Output1
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Dimming ControlNone
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Standards MetEMC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~80°C
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Warranty3 Year
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Length5.06 in
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Width4.93 in
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Height3.37 in
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Weight3.03 lb
::specification::
Frequently Asked Questions
Can I use the DDR-480B-12 to power a large 12V motor drive or resistive heating element from a 24V battery system?
Yes. The DDR-480B-12 delivers 12V at up to 33.4A (400.8W), which is substantial enough for medium motor drives, resistive heaters, or high-current actuators. Its 16.8-33.6V DC input range covers a nominal 24V battery bank (typical 21-29V range) comfortably.
Is the DDR-480B-12 suitable for powering 12V server or networking equipment in a 24V DC data center distribution setup?
Yes. With 400.8W at 12V and 33.4A, it can supply one or more 12V rack devices. The 16.8-33.6V input accepts a 24V DC bus, and the 4KVdc I/O isolation prevents ground loops between the distribution bus and downstream equipment. Its DIN rail mount simplifies installation in power distribution panels.
Can the DDR-480B-12 convert 24V solar or wind DC to 12V for a large off-grid lighting installation?
Yes, provided the input voltage stays within 16.8-33.6V DC. A 24V solar array with battery buffering typically stays in this range. At 400.8W, it can drive substantial 12V LED lighting loads across a facility or campsite. The -40°C to +80°C operating range supports year-round outdoor enclosure deployment.
Can the DDR-480B-12 operate in a cold-start outdoor environment without preheating?
Yes. The DDR-480B-12 is rated for -40°C to +80°C operating temperature, so it starts and runs in extreme cold without a separate heater. Its fanless design avoids mechanical failure from ice or condensation. Mount it inside a weatherproof NEMA or IP-rated enclosure to protect it from direct moisture exposure.
What are the differences between the DDR-480B, DDR-480C, and DDR-480D models at 12V output?
All three provide 400.8W at 12V / 33.4A output but accept different input voltage ranges: the DDR-480B-12 takes 16.8-33.6V DC (for 24V bus systems), the DDR-480C-12 takes 33.6-67.2V DC (for 48V bus systems), and the DDR-480D-12 takes 67.2-154V DC (for higher-voltage DC distribution). Choose the letter suffix that matches your upstream bus voltage.
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Other DDR-480B Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-480B-48 DC-DC Converter - 480W - 16.8~33.6V in 48V out 10A | 480W | 48V | 10A | Indoor | $355.59 | View |
| Mean Well DDR-480B-24 DC-DC Converter - 480W - 16.8~33.6V in 24V out 20A | 480W | 24V | 20A | Indoor | $184.66 | View |
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