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Mean Well DDR-240B-24 DC-DC Converter - 240W - 16.8~33.6V in 24V out
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Mean Well DDR-240B-24 DC-DC Converter - 240W - 16.8~33.6V in 24V out
Description
Description
The DDR-240B 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 16.8~33.6Vdc (nominal 24Vdc), 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: 16.8~33.6Vdc (nominal 24Vdc)
- ✓ 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
Specifications
Specifications
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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 Voltage16.8V~33.6V
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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
File Downloads
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Payment & Security
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Frequently Asked Questions
Can I use the DDR-240B-24 to power a 24V industrial automation system from a 24V battery bank?
Yes, provided the battery voltage stays within the 16.8-33.6V input range. The DDR-240B-24 delivers 240W at 24V/10A, which is substantial enough to power PLCs, motor drives, HMI panels, and multiple I/O modules in a DIN rail-mounted automation system fed from a 24V battery bus.
Is the DDR-240B-24 suitable for powering 24V LED lighting systems in a DC microgrid or solar installation?
The DDR-240B-24 accepts 16.8-33.6V DC input and provides 24V at up to 10A. It can convert a 24V or 28V solar battery bus to a regulated 24V output for LED lighting panels, strips, or fixtures totaling up to 240W. The 4KVdc isolation protects the lighting from battery-side transients.
Can the DDR-240B-24 power 24V solenoid valves and actuators in a process automation cabinet?
Yes. With 240W (24V/10A) of output capacity, the DDR-240B-24 can drive multiple 24V solenoid valves, pneumatic actuators, and relay coils simultaneously. Its DIN rail mounting and fanless design make it well suited for enclosed process automation cabinets where space and noise are concerns.
Does the DDR-240B-24 require active cooling or ventilation?
The DDR-240B-24 features a fanless convection-cooled design rated for -40°C to +85°C. At full 240W load, adequate airflow around the unit is recommended to dissipate heat. In tightly sealed enclosures at high ambient temperatures, derating may apply per the Mean Well datasheet.
How does the DDR-240B-24 compare to other 240W models in the DDR series?
The DDR-240 series at the 24V output level includes the DDR-240B-24 (16.8-33.6V input), DDR-240C-24 (33.6-67.2V input), and DDR-240D-24 (67.2-154V input). All deliver 240W at 24V/10A. The B, C, and D suffixes denote different input voltage ranges to match different DC bus standards.
Can I use the DDR-240B-24 in a vehicle or mobile application with a 24V nominal electrical system?
Yes. A 24V vehicle electrical system typically operates between 20V and 30V, which falls within the DDR-240B-24's 16.8-33.6V input range. The converter provides a stable, isolated 24V/10A output for sensitive onboard electronics, communication equipment, or auxiliary systems. Its -40°C to +85°C rating handles vehicular temperature extremes.
Other DDR-240B Models
1 other model| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-240B-48 DC-DC Converter - 240W - 16.8~33.6V in 48V out | 240W | 48V | 5A | Indoor | $89.01 | View |
