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Mean Well RS-75-3.3 Power Supply 75W 3.3V
The RS-75 is a 75W Mean Well DIN rail power converter with a 29mm profile (input range: 125~373VDC, operating temperature: -25~+70°C).
Key Features
- ✓ 29mm width — DIN rail TS-35 compatible
- ✓ Input voltage range: 125~373VDC
- ✓ Cooling by free air convection — no minimum load required
- ✓ 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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SeriesRS Series
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Power Rating49.5 Watt
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Output Voltage3.3 Volt
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Rated Current15 Ampere
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Input Voltage88V~264V
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No of Output1
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Standards MetBSMI,CB,CCC,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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Weight0.9 lb
::specification::
Frequently Asked Questions
Can I use the RS-75-3.3 to power 3.3V industrial control boards or logic circuits?
Yes, this model is a constant-voltage 3.3V power supply with up to 15A output current and 49.5W rated power. It fits industrial control boards, logic sections, and other 3.3V DC loads that need more current than small board-level adapters can provide.
Is the RS-75-3.3 suitable for embedded systems or single-board electronics that need a regulated 3.3V rail?
It can be a fit when the equipment requires a fixed 3.3V DC supply and the total load stays within 15A and 49.5W. The wide 88-264VAC input also makes it usable in equipment that may be deployed across different AC mains regions.
Can this 3.3V power supply be used for factory test fixtures or bench equipment?
For fixed 3.3V DC test loads, the RS-75-3.3 can work well because it provides constant-voltage output at 3.3V with up to 15A available. Its compact 129.0 x 98.0 x 38.0 mm size can also help where enclosure space is limited.
Would the RS-75-3.3 work in automation cabinets that need a low-voltage auxiliary rail?
It is suited to automation or control enclosures that need a dedicated 3.3V auxiliary supply, as long as the connected devices stay within 49.5W total and 15A maximum output current. The unit is rated for operation from -25C to +70C and is specified to withstand 5G vibration.
Is the RS-75-3.3 intended for outdoor or washdown environments?
This model does not list an IP rating, so it is better treated as an enclosed power supply for protected indoor equipment rather than exposed outdoor or washdown use. Its published operating temperature range is -25C to +70C, which addresses temperature capability but not water or dust ingress protection.
How does the RS-75-3.3 compare with the other RS-75 output options?
Within the RS-75 group, the available outputs are RS-75-3.3 at 49.5W, 3.3V, 15A; RS-75-5 at 60W, 5V, 12A; RS-75-12 at 72W, 12V, 6A; RS-75-15 at 75W, 15V, 5A; RS-75-24 at 76.8W, 24V, 3.2A; and RS-75-48 at 76.8W, 48V, 1.6A. The main selection difference is the required DC output voltage, with current and wattage changing accordingly across the series.
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Other RS-75 Models
5 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well RS-75-5 Power Supply 75W 5V | 60W | 5V | 12A | Indoor | $19.85 | View |
| Mean Well RS-75-48 Power Supply 75W 48V | 76.8W | 48V | 1.6A | Indoor | $17.99 | View |
| Mean Well RS-75-24 Power Supply 75W 24V | 76.8W | 24V | 3.2A | Indoor | $20.43 | View |
| Mean Well RS-75-15 Power Supply 75W 15V | 75W | 15V | 5A | Indoor | $18.51 | View |
| Mean Well RS-75-12 Power Supply 75W 12V | 72W | 12V | 6A | Indoor | $20.43 | View |
