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Mean Well DDR-120D-12 DC-DC Converter - 120W - 67.2~154V in 12V out 10A
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Mean Well DDR-120D-12 DC-DC Converter - 120W - 67.2~154V in 12V out...
The DDR-120D is a 120W Mean Well DC-DC converter (input: 67.2~154VAC, operating temperature: -40~+85°C).
Key Features
- ✓ Input voltage: 67.2~154VAC
- ✓ Output voltage (max): 12V
- ✓ Rated output current: 10A
- ✓ I/O isolation: 500V
- ✓ Operating temperature: -40~+85°C
- ✓ Safety certifications: CE, EMC
- ✓ 2 year warranty
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BrandMean Well
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SeriesDDR Series
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Power Rating120 Watt
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Output Voltage12 Volt
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Rated Current10 Ampere
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Input Voltage67.2V~154V
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No of Output1
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Dimming ControlNone
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Standards MetCE,EMC
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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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Length4.93 in
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Width4.02 in
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Height1.26 in
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Weight1.12 lb
::specification::
Frequently Asked Questions
Can I use the DDR-120D-12 to power 12V sensors and relays from a 110V DC distribution bus?
Yes. The DDR-120D-12 accepts 67.2-154V DC input, covering nominal 110V DC buses common in legacy industrial plants and railway signaling systems. It provides a regulated 12V output at up to 10A (120W), which is sufficient for banks of sensors, relay modules, and indicator lights on a DIN rail panel.
Is the DDR-120D-12 a good choice for converting a 125V DC UPS bus to 12V for embedded controllers?
Yes. A 125V DC UPS bus falls well within the 67.2-154V input range. The 120W capacity at 12V/10A gives you headroom for embedded single-board computers, HMI displays, and peripheral devices. The 4KVdc I/O isolation protects sensitive electronics from noise or faults on the high-voltage bus.
Can I run 12V LED indicator strips in a control panel using the DDR-120D-12?
Yes. At 12V and 10A you have 120W available, which is enough for several meters of 12V indicator or status LED strips inside a control panel. The fanless design avoids introducing vibration or noise into the panel, and the slim 32mm DIN rail profile conserves space on the rail.
Is the DDR-120D-12 suitable for cold-start environments like outdoor substations?
Yes. Its -40°C to +85°C operating temperature range covers extreme cold-start conditions found in outdoor substations, telecom huts, and remote monitoring stations. It should be installed inside a sealed enclosure to protect against moisture and debris since it does not carry a dedicated IP rating.
How does the DDR-120D-12 compare to other 120W DDR models with 12V output?
The DDR series offers four input ranges at the 120W/12V level. The DDR-120A-12 accepts 9.2-18V input (99.6W, 8.3A). The DDR-120B-12 accepts 16.8-33.6V (120W, 10A). The DDR-120C-12 accepts 33.6-67.2V (120W, 10A). The DDR-120D-12 accepts 67.2-154V (120W, 10A). Select the suffix letter that matches your DC source voltage.
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Other DDR-120D Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DDR-120D-48 DC-DC Converter - 120W - 67.2~154V in 48V out 2.5A | 120W | 48V | 2.5A | Indoor | $64.85 | View |
| Mean Well DDR-120D-24 DC-DC Converter - 120W - 67.2~154V in 24V out 5A | 120W | 24V | 5A | Indoor | $68.88 | View |
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