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Mean Well DDR-480D-48 DC-DC Converter - 480W - 67.2~154V in 48V out
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Mean Well DDR-480D-48 DC-DC Converter - 480W - 67.2~154V in 48V out
The DDR-480D is a 480W DIN Rail type DC-DC converter designed for rolling stock and railway applications requiring compliance with EN50155 standards. With an input range of 67.2~154Vdc (nominal 110Vdc), it converts from standard on-board DC bus supplies to isolated 12V, 24V, or 48V outputs. Built to withstand shock and vibration per IEC61373, it operates reliably from -40~+80°C and supports current sharing for higher-power parallel configurations.
Key Features
- ✓ 85.5mm wide — DIN rail TS-35 compatible
- ✓ Input voltage range: 67.2~154Vdc (nominal 110Vdc)
- ✓ DC output voltage adjustable ±10%
- ✓ 4KVdc reinforced I/O isolation
- ✓ Wide operating temperature: -40°C ~ +80°C
- ✓ Protections: Short circuit / Overload / Over voltage / Reverse polarity / Under voltage lockout
- ✓ DC OK relay contact output
- ✓ Remote ON/OFF control
- ✓ Current sharing up to 1920W (parallel 3+1 units)
- ✓ Safety approvals: UL 62368-1, IEC 62368-1, AS/NZS 62368.1, EAC TP TC 004
- ✓ Railway standards: EN50155, IEC60571, IEC61373 (shock & vibration)
- ✓ 3 years warranty
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BrandMean Well
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SeriesDDR Series
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Power Rating480 Watt
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Output Voltage48 Volt
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Rated Current10 Ampere
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Input Voltage67.2V~154V
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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-480D-48 to convert a 110V DC bus to 48V for powering PoE network infrastructure?
Yes. The DDR-480D-48 accepts 67.2-154V DC input and outputs 48V at 10A (480W). This makes it well suited for stepping down a 110V or 125V DC distribution bus to 48V for PoE switches, wireless access points, and IP cameras in industrial or commercial network deployments.
Is the DDR-480D-48 suitable for telecom rectifier systems that distribute 110V DC?
The DDR-480D-48 is designed for exactly this type of application. Its 67.2-154V DC input range accommodates 110V telecom DC distribution, and it provides a regulated 48V output at 10A. The DIN rail mount, fanless design, and 4KVdc isolation are well matched to telecom equipment rooms and outdoor cabinets.
Can the DDR-480D-48 be used in a solar or wind energy system with a high-voltage DC link?
If the DC link voltage stays within 67.2-154V, the DDR-480D-48 can convert it to a stable 48V rail at up to 10A. This is useful for powering 48V battery systems, monitoring equipment, or communication devices in off-grid renewable energy installations. The wide input range accommodates voltage fluctuations typical of renewable sources.
Can I deploy the DDR-480D-48 in a cold-climate outdoor cabinet without a heater?
The DDR-480D-48 is rated for operation from -40 to +80 degrees Celsius, so it can start and operate in extreme cold without a cabinet heater. It must still be housed in a weatherproof enclosure since it does not carry an ingress protection rating against moisture or dust.
How does the DDR-480D-48 compare to the DDR-480B-48 and DDR-480C-48?
All three are 480W, 48V/10A DC-DC converters in the same physical form factor. The difference is the input voltage range: the DDR-480B-48 accepts 16.8-33.6V, the DDR-480C-48 accepts 33.6-67.2V, and the DDR-480D-48 accepts 67.2-154V. Choose the variant that matches your DC bus voltage.
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Other DDR-480D Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-480D-24 DC-DC Converter - 480W - 67.2~154V in 24V out | 480W | 24V | 20A | Indoor | $184.66 | View |
| Mean Well DDR-480D-12 DC-DC Converter - 400.8W - 67.2~154V in 12V out | 400.8W | 12V | 33.4A | Indoor | $184.66 | View |
