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Mean Well DDRH-45-15ST Ultra Wide Input DC-DC Converter, 45W 15V, Screw Terminal Type
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Mean Well DDRH-45-15ST Ultra Wide Input DC-DC Converter, 45W 15V, S...
The DDRH-45 is a 45W high-reliability ultra-wide input DC-DC converter designed for photovoltaic, renewable energy storage, and demanding high-voltage industrial systems. Supporting a 150~1500Vdc input range, it adapts to solar, battery string, and DC bus supply sources. With 4KVac reinforced I/O isolation, fanless free air convection cooling, and no minimum load requirement, the DDRH-45 offers reliable power conversion 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 Rating45 Watt
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Output Voltage15 Volt
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Rated Current3 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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Height1.26 in
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Weight0.67 lb
::specification::
Frequently Asked Questions
Can the DDRH-45-15ST provide the 15V power needed for industrial ultrasonic sensors and proximity switches?
Yes. Many industrial ultrasonic and inductive proximity sensors operate at 15V, and the DDRH-45-15ST delivers 15V at up to 3A (45W). The screw-terminal connections suit direct field-wiring in panel-builder installations.
Is the DDRH-45-15ST suitable for powering HMI touch panels that require a 15V DC supply?
At 45W and 3A on a 15V rail, the converter can supply compact HMI touch panels and operator interface terminals. The ultra-wide 150–1500VDC input allows it to accept power from a variety of DC bus configurations in the same control panel.
Can this converter supply 15V to a distributed fieldbus repeater in a PROFIBUS or DeviceNet segment?
Fieldbus repeaters and power conditioners typically draw well under 45W, making the DDRH-45-15ST a suitable supply. The fanless, –40°C to +80°C design handles the thermal demands of enclosed switchgear where active cooling is undesirable.
What is the thermal operating range and enclosure requirement for the DDRH-45-15ST?
The unit is rated –40°C to +80°C and uses fanless convection cooling. It carries no IP ingress-protection rating, so it must be installed inside a suitably sealed enclosure when used in wet, dusty, or outdoor environments.
How does the DDRH-45-15ST's screw terminal design compare to the other DDRH-45-15 models?
The DDRH-45-15ST (135×70×32 mm, 0.305 kg) uses screw terminals for easy field wiring. The DDRH-45-15DR (135×70×43.5 mm, 0.31 kg) has the same footprint but adds a DIN rail clip, making it slightly deeper. The DDRH-45-15P (89×63.5×25 mm, 0.24 kg) is a PCB-mount module. All three are rated 45W, 15V, 3A.
Does the fanless design of the DDRH-45-15ST limit its use in high-ambient-temperature enclosures?
The converter is rated to operate up to +80°C ambient. In enclosures where heat from other components raises the local ambient above that limit, derating or additional enclosure ventilation is required to maintain reliable operation.
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