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Mean Well DDRH-15-24ST Ultra Wide Input DC-DC Converter, 15W 24V, Screw Terminal Type
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Mean Well DDRH-15-24ST Ultra Wide Input DC-DC Converter, 15W 24V, S...
The DDRH-15 is a 15W high-reliability ultra-wide input DC-DC converter designed for photovoltaic, renewable energy, and demanding high-voltage industrial applications. Its exceptional 150~1500Vdc input range — a 10:1 ratio — covers solar panels, battery strings, and high-voltage DC bus sources. With 4KVac reinforced I/O isolation, fanless free air convection cooling, and no minimum load requirement, the DDRH-15 provides stable, isolated power conversion across a wide -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 Rating15 Watt
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Output Voltage24 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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Length4.82 in
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Width2.26 in
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Height1.26 in
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Weight0.46 lb
::specification::
Frequently Asked Questions
Can the DDRH-15-24ST supply 24V control power to a relay output module or safety relay in an industrial panel wired from a high-voltage DC bus?
Yes. The DDRH-15-24ST provides a stable 24V/0.62A (15W) output from a 150–1500VDC input through screw terminal connections, making it practical to wire into industrial panels where safety relays or relay output modules need a 24VDC supply derived from a high-voltage DC bus.
Is the DDRH-15-24ST suitable for use in rail vehicles or heavy equipment where wide input voltage variation is expected?
The DDRH-15-24ST's 10:1 ultra-wide input range (150–1500VDC) and -40°C to +80°C operating temperature make it compatible with demanding transportation and heavy equipment applications where supply voltage varies widely and ambient conditions are extreme. The fanless design also suits vibration-intensive environments.
Can this converter power a 24V wireless I/O transmitter or remote monitoring node in a high-voltage DC power system?
Yes. The DDRH-15-24ST can power 24V wireless I/O nodes, remote monitoring transmitters, or data acquisition modules at up to 0.62A. The screw terminal connections simplify field wiring in remote panel installations, and the wide input range accommodates variable high-voltage DC source conditions.
How does the DDRH-15-24ST behave in environments with extreme ambient temperature swings, such as outdoor utility substations?
The DDRH-15-24ST is rated for -40°C to +80°C operation with a fanless, all-solid-state design. This makes it capable of surviving the temperature extremes seen in outdoor utility substation panels through seasonal and diurnal cycles. The unit must be installed inside a weatherproof enclosure as it carries no standalone IP protection rating.
What is the difference between the DDRH-15-24ST, DDRH-15-24DR, and DDRH-15-24P?
All three deliver 24V/0.62A/15W from a 150–1500VDC input. The DDRH-15-24ST (screw terminal, 122.3 × 57.3 × 32.0 mm, 0.21 kg) is wired via screw terminals without DIN rail clips; the DDRH-15-24DR (DIN rail, 122.3 × 57.3 × 43.5 mm, 0.215 kg) snaps onto a DIN rail; and the DDRH-15-24P (PCB mount, 76.2 × 50.8 × 25.0 mm, 0.17 kg) mounts directly on a PCB. The screw terminal version is preferred when DIN rail is unavailable but direct wire connections are needed.
Does the DDRH-15-24ST meet certification requirements for European industrial installations?
Yes. The DDRH-15-24ST carries CE and EAC certifications, supporting compliance with European and Eurasian industrial directives. A 3-year manufacturer warranty is included.
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