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Mean Well DDR-480D-24 DC-DC Converter - 480W - 67.2~154V in 24V out
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Mean Well DDR-480D-24 DC-DC Converter - 480W - 67.2~154V in 24V 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 Voltage24 Volt
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Rated Current20 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-24 to step down a 110V DC distribution bus to 24V for factory automation?
Yes. The DDR-480D-24 accepts 67.2-154V DC input, covering 110V and 125V DC bus systems. It delivers 480W at 24V/20A, which is well suited for powering PLCs, HMIs, sensors, and actuators in factory automation panels mounted on DIN rail.
Is the DDR-480D-24 appropriate for converting a 72V renewable energy system to 24V for battery charging equipment?
The DDR-480D-24 accepts input from 67.2V to 154V DC, so a 72V nominal system falls within its range. It outputs a regulated 24V at up to 20A (480W), which can power 24V battery chargers, inverters, or monitoring equipment. The 4KVdc isolation protects against ground potential differences between source and load.
Can the DDR-480D-24 power 24V instrumentation in a mining or heavy-industry environment?
The DDR-480D-24 is designed for demanding conditions with a -40 to +80 degrees C operating range and fanless operation that eliminates moving parts. With 480W at 24V/20A and DIN rail mounting, it can supply instrumentation, control panels, and communication equipment in mining or heavy-industry settings where a high-voltage DC bus is available.
Does the DDR-480D-24 need forced air cooling in a sealed DIN rail enclosure?
The DDR-480D-24 uses a fanless convection-cooled design and does not require forced air. However, in a sealed enclosure with other heat-generating equipment, the ambient temperature must stay within the -40 to +80 degrees C rating. If cabinet temperatures approach 80 degrees C, consider adding ventilation or thermal management to prevent output derating.
What is the isolation voltage between input and output on the DDR-480D-24?
The DDR-480D-24 provides 4KVdc input-to-output galvanic isolation. This level of isolation is critical in applications where the high-voltage DC input bus and the 24V output circuit must remain electrically separated, such as in renewable energy, telecom, or railway systems.
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Other DDR-480D Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-480D-48 DC-DC Converter - 480W - 67.2~154V in 48V out | 480W | 48V | 10A | 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 |
