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Mean Well DDR-240C-24 DC-DC Converter - 240W - 33.6~67.2V in 24V out
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Mean Well DDR-240C-24 DC-DC Converter - 240W - 33.6~67.2V in 24V out
The DDR-240C is a 240W DIN Rail type DC-DC converter designed for rolling stock and railway applications requiring compliance with EN50155 standards. With an input range of 33.6~67.2Vdc (nominal 48Vdc), 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~+70°C and supports current sharing for higher-power parallel configurations.
Key Features
- ✓ 40mm wide — DIN rail TS-35 compatible
- ✓ Input voltage range: 33.6~67.2Vdc (nominal 48Vdc)
- ✓ DC output voltage adjustable ±10%
- ✓ 4KVdc reinforced I/O isolation
- ✓ Wide operating temperature: -40°C ~ +70°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 960W (parallel 3+1 units)
- ✓ Safety approvals: IEC 62368-1, UL 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 Rating240 Watt
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Output Voltage24 Volt
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Rated Current10 Ampere
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Input Voltage33.6V~67.2V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EMC,UL
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Warranty2 Year
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Length4.93 in
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Width4.47 in
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Height1.57 in
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Weight1.68 lb
::specification::
Frequently Asked Questions
Can I use the DDR-240C-24 to convert a 48V battery bank to 24V for industrial automation equipment?
Yes. The DDR-240C-24 accepts 33.6-67.2V DC input and outputs 24V at up to 10A (240W), so it is well suited for stepping down a 48V battery system to power 24V PLCs, sensors, and motor drives in DIN rail-based automation panels. The 4KVdc I/O isolation protects sensitive control equipment from the battery bus.
Is the DDR-240C-24 suitable for powering 24V DC loads from a 48V telecom bus?
Yes. Telecom DC buses commonly operate at 48V nominal, which falls within the DDR-240C-24's 33.6-67.2V input range. At 240W and 10A output, it can supply 24V peripheral equipment such as switches, routers, or access controllers mounted in standard telecom racks.
Can the DDR-240C-24 power 24V embedded computing systems in a mobile or vehicle application?
Yes. If the vehicle's DC bus voltage stays within 33.6-67.2V, the DDR-240C-24 provides a stable 24V rail at up to 10A. Its fanless design and -40°C to +85°C operating range make it suitable for unventilated enclosures in buses, trains, or heavy equipment where vibration and temperature extremes are common.
Will the DDR-240C-24 operate reliably in an unheated outdoor DIN rail enclosure?
Yes. The DDR-240C-24 is rated for -40°C to +85°C and uses a fanless convection-cooled design with no moving parts to fail in extreme weather. As long as the enclosure shields it from direct water ingress, it will operate in cold-climate outdoor cabinets, rooftop equipment housings, and similar exposed installations.
Can I use the DDR-240C-24 in a solar energy system to step down a 48V panel string for 24V loads?
The DDR-240C-24 accepts 33.6-67.2V DC input, which can accommodate a 48V nominal solar bus with typical voltage fluctuations. It provides 240W at 24V/10A for loads such as monitoring systems, communication radios, or lighting controllers in off-grid solar installations.
What are the differences between the DDR-240B, DDR-240C, and DDR-240D models at the 24V output level?
All three provide 240W at 24V/10A output. The key difference is the input voltage range: the DDR-240B-24 accepts 16.8-33.6V DC (suited to 24V bus systems), the DDR-240C-24 accepts 33.6-67.2V DC (suited to 48V bus systems), and the DDR-240D-24 accepts 67.2-154V DC (suited to high-voltage DC distribution). All share the same DIN rail form factor and fanless design.
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Other DDR-240C Models
1 other model| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-240C-48 DC-DC Converter - 240W - 33.6~67.2V in 48V out | 240W | 48V | 5A | Indoor | $97.43 | View |
