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Mean Well DDR-30L-24 DC-DC Converter - 30W - 18~75V in 24V out
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Mean Well DDR-30L-24 DC-DC Converter - 30W - 18~75V in 24V out
The DDR-30L is a 30W DIN Rail type DC-DC converter with a 35mm (2SU) profile, suited for systems powered from 24V or 48V DC buses. A 4:1 wide input voltage range of 18~75Vdc covers nominal 24V and 48V supplies, and reinforced 4KVdc I/O isolation ensures clean, noise-resistant power conversion. Cooled by free air convection with no minimum load requirement, it operates across a -40~+85°C working range.
Key Features
- ✓ Compact 35mm (2SU) width — DIN rail TS-35/7.5 or 15 compatible
- ✓ 4:1 wide input voltage range: 18~75Vdc
- ✓ DC output voltage adjustable ±10%
- ✓ 4KVdc reinforced I/O isolation
- ✓ Cooling by free air convection — no minimum load required
- ✓ Wide operating temperature: -40°C ~ +85°C
- ✓ Protections: Short circuit / Overload / Over voltage / Reverse polarity / Under voltage lockout
- ✓ Safety approvals: UL 62368-1, IEC 62368-1, AS/NZS 62368.1
- ✓ 3 years warranty
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BrandMean Well
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SeriesDDR Series
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Power Rating30 Watt
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Output Voltage24 Volt
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Rated Current1.25 Ampere
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Input Voltage18V~75V
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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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Length3.54 in
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Width2.15 in
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Height1.38 in
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Weight0.26 lb
::specification::
Frequently Asked Questions
Can I use the DDR-30L-24 to step down a 48V telecom bus to 24V for powering edge networking equipment?
Yes. The DDR-30L-24 accepts 18-75V DC input, covering the full range of a 48V telecom bus (typically 36-72V). It delivers 24V at up to 1.25A (30W) with 4KVdc I/O isolation, making it well suited for small network switches, media converters, and other 24V edge devices mounted in telecom racks or cabinets.
Is the DDR-30L-24 suitable for powering 24V solenoid valves and small actuators in a process control panel?
Yes, provided the total load stays within 30W. At 24V and 1.25A, it can drive a few solenoid valves or small pneumatic actuators typical in process automation. Its DIN rail form factor and slim 35mm width integrate neatly alongside other automation components in standard control panels.
Can the DDR-30L-24 power 24V building automation controllers from a 72V DC distribution bus?
Yes. The 18-75V input range accommodates a 72V nominal DC bus commonly used in some building automation and solar array configurations. The converter delivers isolated 24V at up to 1.25A, which is enough for BACnet controllers, room sensors, and similar low-power 24V building automation devices.
Does the DDR-30L-24 need forced-air cooling in a sealed DIN rail enclosure?
No. The DDR-30L-24 uses a fanless convection-cooled design with no moving parts, so it operates silently in sealed enclosures. It is rated for -40°C to +85°C ambient temperature. In tightly sealed cabinets where ambient temperature may rise significantly, ensure adequate thermal headroom to stay within the rated range.
If I need more than 30W at 24V on the same DC bus, what are my options in the DDR series?
The DDR-L series with 18-75V input offers 24V output at multiple power levels: DDR-15L-24 (15W, 0.63A), DDR-30L-24 (30W, 1.25A), and DDR-60L-24 (60W, 2.5A). For even higher loads, the DDR-120 through DDR-480 families offer up to 480W at 24V, though they use different input voltage sub-ranges depending on the letter suffix (A, B, C, or D).
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Other DDR-30L Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-30L-5 DC-DC Converter - 30W - 18~75V in 5V out | 30W | 5V | 6A | Indoor | $25.95 | View |
| Mean Well DDR-30L-15 DC-DC Converter - 30W - 18~75V in 15V out | 30W | 15V | 2A | Indoor | $26.19 | View |
| Mean Well DDR-30L-12 DC-DC Converter - 30W - 18~75V in 12V out | 30W | 12V | 2.5A | Indoor | $29.75 | View |
