Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well RD-65B Power Supply 65W 5V 24V
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 Rating68 Watt
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Output Voltage5 Volt
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Rated Current4 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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Length5.08 in
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Width3.86 in
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Height1.5 in
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Weight0.97 lb
::specification::
Frequently Asked Questions
Can I use the RD-65B in an automation panel that needs 5V control power and 24V support power?
Yes, this is a dual output constant voltage supply with 5V and 24V outputs and a total rating of 68W. The 5V output is rated at 4A, so it suits systems with lighter 5V logic demand while still providing a second DC rail. It is a better fit for mixed-voltage control assemblies than for heavy 5V-only loads.
Is the RD-65B appropriate for networked industrial electronics or gateway devices with modest 5V current draw?
It can be appropriate when the 5V load stays within 4A and total output demand stays within 68W. Compared with 5V 6A and 5V 8A siblings, this version is better for lower-current 5V electronics. Its 88-264VAC input range also supports use in equipment deployed across different AC supply standards.
Can the RD-65B be used in compact machine or cabinet builds?
Yes, the housing size is 129.0 x 98.0 x 38.0 mm and the unit weighs 0.44 kg, which keeps it relatively compact for cabinet integration. The constant voltage design and dual output format make it suitable for enclosed industrial or embedded assemblies that need two DC rails. Its 68W rating places it above the 50W-class versions in available output power.
Is the RD-65B suitable for exposed outdoor environments?
It is rated to operate from -25C to +70C, so the temperature range is broad. However, no IP rating is listed in the provided specifications, so it should be considered suitable for protected indoor enclosures rather than exposed outdoor environments. For environmental selection, the absence of an IP rating matters as much as the temperature range.
How does the RD-65B compare with nearby RD series options?
From the sibling data provided, RD-35A is 32W at 5V 4A, RD-35B is 35W at 5V 2.2A, RD-50A is 54W at 5V 6A, RD-50B is 53.6W at 5V 4A, RD-65A is 66W at 5V 6A, RD-85A is 88W at 5V 8A, RD-85B is 88W at 5V 8A, RD-125A is 130.9W at 5V 7.7A, RD-125B is 133.4W at 5V 4.6A, RD-3513 is 35.1W at 13.5V 1.3A, RD-125-1224 is 125W at 12V 3.7A, RD-125-1248 is 125W at 12V 2.3A, and RD-125-2448 is 125W at 24V 2A. The list also includes RD-125-2412, RD-125-4812, RD-125-4824, RD-125A-OB, RD-125NB, and RD-65A-OB without detailed figures. RD-65B itself is the 68W model with a 5V 4A main output.
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