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Mean Well RD-125A Power Supply 125W 5V 12V
The RD is a 125W Mean Well DIN rail power converter with a 99mm profile (input range: 176~264VAC, operating temperature: -25~+70°C).
Key Features
- ✓ 99mm width — DIN rail TS-35 compatible
- ✓ Input voltage range: 176~264VAC
- ✓ DC output voltage adjustable ±10%
- ✓ Cooling by free air convection
- ✓ Wide operating temperature: -25~+70°C
- ✓ Protections: Short circuit / Overload / Over voltage
- ✓ Safety approvals: UL62368- TUV EN62368-1, EAC TP TC 004
- ✓ 3 years warranty
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BrandMean Well
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SeriesRD Series
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Power Rating130.9 Watt
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Output Voltage5 Volt
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Rated Current7.7 Ampere
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Input Voltage88V~264V
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No of Output2
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Standards MetCB,CE,EAC,RCM,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-25°C~70°C
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Warranty3 Year
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Length7.83 in
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Width3.86 in
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Height1.5 in
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Weight1.54 lb
::specification::
Frequently Asked Questions
Can I use the RD-125A in an industrial control cabinet that needs both 5V logic and 12V peripherals?
Yes. The RD-125A is a dual output constant voltage supply with 5V and 12V outputs, and the listed 5V output current is 7.7A. Its total rated power is 130.9W, so it fits control systems that need both voltage rails from one power supply.
Is the RD-125A suitable for embedded systems that combine a 5V controller with 12V auxiliary loads?
It is designed for dual output use where a system needs 5V and 12V from one unit. The supply provides a 5V output rated at 7.7A and a total power rating of 130.9W. That makes it a practical fit for embedded or automation hardware with separate low-voltage logic and 12V support loads.
Can the RD-125A be used in automation equipment exposed to vibration or higher internal cabinet temperatures?
Yes, the listed features include 5G vibration resistance and operation up to +70°C. The operating temperature range is -25°C to +70°C. Those specs make it appropriate for enclosed industrial equipment that sees vibration and elevated ambient temperatures.
Is the RD-125A for indoor or outdoor use?
These specs do not list an IP rating, so it should be treated as a power supply for indoor use or for installation inside a protected enclosure. Its operating temperature range is -25°C to +70°C, but that temperature rating does not by itself indicate outdoor exposure protection.
How does the RD-125A compare with other Mean Well RD dual output models?
Within the listed RD family, the RD-125A is 130.9W with a 5V 7.7A output. Other specified siblings are RD-125B at 133.4W with 5V 4.6A, RD-3513 at 35.1W with 13.5V 1.3A, RD-35A at 32W with 5V 4A, RD-35B at 35W with 5V 2.2A, RD-50A at 54W with 5V 6A, RD-50B at 53.6W with 5V 4A, RD-65A at 66W with 5V 6A, RD-65B at 68W with 5V 4A, and RD-85A and RD-85B at 88W with 5V 8A.
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