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Mean Well DDRH-120-12 Ultra Wide Input DC-DC Converter, 100.8W 12V 8.4A

250~1500VDC 6:1 ultra-wide input range, withstand 1700Vdc surge input for 10 seconds, 63mm slim width, DC output voltage adjustable 12~15V

SKU:

DDRH-120-12

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Description

The DDRH-120 is a 120W high-reliability ultra-wide input DIN Rail DC-DC converter engineered for photovoltaic, renewable energy storage, and high-voltage industrial systems. Its 250~1500Vdc input range covers high-voltage DC bus and battery string sources, while 4KVac reinforced I/O isolation ensures clean, noise-free power conversion. Featuring fanless free air convection cooling and a DC OK relay output, the DDRH-120 reliably operates across a -40~+80℃ temperature range.

Key Features

✓ Ultra-wide 250~1500Vdc input range — high-voltage DC bus and battery string compatible
✓ 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
✓ DC OK relay contact output — signals supply status
✓ Protections: Short circuit / Overload / Over voltage / Reverse polarity / Under voltage lockout
✓ DIN rail TS-35 compatible
✓ Safety approvals: IEC62109-1, BS EN/EN62109-1, EAC TP TC 004
✓ 3 years warranty

Specifications

Brand

Mean Well
Series

DDRH Series
Power Rating

100.8 Watt
Output Voltage

12 Volt
Rated Current

8.4 Ampere
Input Voltage

250V~1500V
Standards Met

CE,EAC
Operation Mode

Constant Voltage
Operating Temperature

-40°C~80°C
Warranty

3 Year
Length

6.3 cm
Width

12.52 cm
Height

11.5 cm
Weight

0.85 kg

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Frequently Asked Questions

Can the DDRH-120-12 power a 12V industrial control panel drawing around 8A?

Yes, the DDRH-120-12 delivers up to 8.4A at 12V (100.8W), making it suitable for 12V control panel loads up to that current. It mounts on a DIN rail and operates across a 250–1500VDC input range, which suits systems fed from medium-voltage DC bus architectures.

Is the DDRH-120-12 suitable for use in DC microgrid or energy storage systems?

Yes. The DDRH-120-12 accepts 250–1500VDC input with a 6:1 ultra-wide range and can withstand a 1700VDC surge for 10 seconds, making it well suited to battery-based DC microgrids and energy storage bus applications where bus voltage may vary widely. The output is adjustable from 12V to 15V to accommodate downstream equipment requirements.

Can I use this converter to supply 12V instrumentation in a solar or wind power cabinet?

The DDRH-120-12 is designed for high-voltage DC input environments such as solar string and wind turbine DC buses, accepting 250–1500VDC. It provides a regulated 12V/8.4A output for instrumentation, PLCs, or HMIs mounted in the same cabinet.

What temperature range can the DDRH-120-12 operate in?

The DDRH-120-12 is rated for -40°C to +80°C operation. This wide range makes it suitable for outdoor cabinets, transportation equipment, or industrial environments subject to cold-weather extremes without additional heating.

How wide is the DDRH-120-12, and will it fit in a standard DIN rail enclosure?

The DDRH-120-12 is 63mm wide — a slim DIN rail form factor. Its full dimensions are 63.0 × 125.2 × 115.0 mm and it weighs 0.845 kg, fitting into standard 75mm or wider DIN rail enclosures.

What output voltage models are available in the DDRH-120 series?

The DDRH-120 series includes four output voltage options: 12V/8.4A (DDRH-120-12, 100.8W), 24V/5A (DDRH-120-24, 120W), 32V/3.75A (DDRH-120-32, 120W), and 48V/2.5A (DDRH-120-48, 120W). All share the same 63mm-wide DIN rail housing and 250–1500VDC input range.

Can the output voltage of the DDRH-120-12 be adjusted above 12V?

Yes, the output voltage is adjustable from 12V up to 15V via the trim function. This allows fine-tuning to match the forward voltage requirements of downstream 12V loads or to compensate for cable drop.

Model	Power	Voltage	Current	IP Rating
Mean Well DDRH-120-48 Ultra Wide Input DC-DC Converter, 120W 48V 2.5A	120W	48V	2.5A	Indoor	View
Mean Well DDRH-120-32 Ultra Wide Input DC-DC Converter, 120W 32V 3.75A	120W	32V	3.75A	Indoor	View
Mean Well DDRH-120-24 Ultra Wide Input DC-DC Converter, 120W 24V 5A	120W	24V	5A	Indoor	View

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Mean Well DDRH-120-12 Ultra Wide Input DC-DC Converter, 100.8W 12V 8.4A

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Mean Well DDRH-120-12 Ultra Wide Input DC-DC Converter, 100.8W 12V 8.4A

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