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Mean Well DDRH-30-48DR Ultra Wide Input DC-DC Converter, 30W 48V, Din Rail Type
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Mean Well DDRH-30-48DR Ultra Wide Input DC-DC Converter, 30W 48V, D...
The DDRH-30 is a 30W high-reliability ultra-wide input DC-DC converter engineered for photovoltaic, energy storage, and high-voltage industrial applications. Its 150~1500Vdc input range spans solar, battery string, and DC bus supply sources. Featuring 4KVac reinforced I/O isolation and fanless free air convection cooling, the DDRH-30 delivers dependable isolated power with no minimum load requirement across a -40~+80°C operating range.
Key Features
- ✓ Ultra-wide 150~1500Vdc input range — covers solar, ESS, and DC bus sources
- ✓ DC output voltage adjustable ±10%
- ✓ 4KVac reinforced I/O isolation
- ✓ Cooling by free air convection — fanless design, no minimum load required
- ✓ Wide operating temperature: -40°C ~ +80°C
- ✓ Protections: Short circuit / Overload / Over voltage / Reverse polarity / Under voltage lockout
- ✓ DIN rail TS-35/7.5 or 15 compatible (DR type)
- ✓ Safety approvals: IEC62109-1 (LVD), EAC TP TC 004
- ✓ 3 years warranty
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BrandMean Well
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SeriesDDRH Series
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Power Rating30 Watt
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Output Voltage48 Volt
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Rated Current0.62 Ampere
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Input Voltage150V~1500V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EAC
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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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Length5.32 in
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Width2.76 in
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Height1.71 in
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Weight0.68 lb
::specification::
Frequently Asked Questions
Can the DDRH-30-48DR power 48 V PoE switches or VoIP equipment in industrial Ethernet networks fed from a high-voltage DC bus?
The DDRH-30-48DR provides 48 V at up to 0.62 A (30 W), which can supply small 48 V PoE or VoIP devices in industrial network cabinets. Its 150–1500 VDC input is compatible with high-voltage DC distribution rails common in industrial facilities. For higher-power PoE applications requiring more than 30 W, a higher-wattage DDRH-series unit would be needed.
Is this converter suitable for supplying 48 V control power to telecom rectifiers or DC UPS systems with high-voltage string inputs?
Yes. The 150–1500 VDC ultra-wide input of the DDRH-30-48DR matches string voltages found in telecom power plants and high-voltage battery strings. It can deliver a stable 48 V / 0.62 A auxiliary supply for monitoring boards, alarms, or control circuits in these systems.
Can the DDRH-30-48DR be installed in outdoor telecom huts or roadside cabinets exposed to extreme temperatures?
The –40°C to +80°C operating range and fanless design make the DDRH-30-48DR suitable for outdoor telecom enclosures and roadside cabinets. No active cooling is required, reducing maintenance burden and eliminating fan-related failure modes in remote installations.
Is the DDRH-30-48DR appropriate for powering 48 V bus devices in renewable energy systems such as battery management units?
Yes. When the source DC bus falls within 150–1500 VDC, the DDRH-30-48DR can provide a regulated 48 V / 0.62 A output for battery management units, charge controllers, or communication modules in off-grid or grid-tied renewable energy systems.
How does the DIN rail 30 W 48 V model compare to the PCB and screw terminal variants?
All three deliver 30 W at 48 V / 0.62 A from 150–1500 VDC input with –40°C to +80°C range. The DDRH-30-48DR (DIN rail) measures 135.0 × 70.0 × 43.5 mm and weighs 0.31 kg; the DDRH-30-48P (PCB) is 89.0 × 63.5 × 25.0 mm at 0.24 kg; the DDRH-30-48ST (screw terminal) is 135.0 × 70.0 × 32.0 mm at 0.305 kg.
What certifications does the DDRH-30-48DR hold and what is its warranty?
The DDRH-30-48DR carries CE and EAC certifications and is backed by a 3-year warranty.
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