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Mean Well SE-450-3.3 Power Supply 247.5W 3.3V 75A
The SE-450 is a 450W Mean Well power converter (input range: 90~132VAC).
Key Features
- ✓ Input voltage range: 90~132VAC
- ✓ DC output voltage adjustable ±10%
- ✓ 3KVAC reinforced I/O isolation
- ✓ Protections: Overload / Over voltage / Over temperature
- ✓ Safety approvals: UL62368-1, , BSMI CNS14336-1
- ✓ 3 years warranty
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BrandMean Well
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SeriesSE Series
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Power Rating247.5 Watt
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Output Voltage3.3 Volt
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Rated Current75 Ampere
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Input Voltage90V~264V
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No of Output1
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Standards MetBSMI,EAC,UL
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Operation ModeConstant Voltage
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Operating Temperature-10°C~60°C
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Warranty2 Year
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Length8.86 in
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Width4.88 in
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Height1.97 in
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Weight2.76 lb
::specification::
Frequently Asked Questions
Can I use the SE-450-3.3 for a high-current 3.3V embedded system or processor board rack?
Yes, this model provides constant voltage 3.3V output at up to 75A, with a total power rating of 247.5W. It is suited to high-current 3.3V embedded electronics or board-level systems that are designed around a 3.3V rail.
Is the SE-450-3.3 appropriate for 3.3V industrial logic or control electronics?
It can be appropriate when the electronics require a fixed 3.3V DC supply and the load remains within 75A and 247.5W. Its constant voltage operation is intended for equipment expecting regulated 3.3V input.
Can the SE-450-3.3 support a centralized 3.3V bus in a lab or manufacturing test fixture?
Yes, if the fixture distributes 3.3V DC and the combined demand stays under 75A and 247.5W. The wide 90-264VAC input range also helps when the fixture may be used in different facility power environments.
Is the SE-450-3.3 meant for exposed outdoor use?
The specs show an operating temperature range of -10°C to +60°C, but they do not provide an IP rating. Because no IP protection level is listed, it should normally be used indoors or inside a protective enclosure.
How does the SE-450-3.3 differ from the other SE-450 outputs?
The listed SE-450 outputs are 3.3V 75A 247.5W, 5V 75A 375W, 12V 37.5A 450W, 15V 30A 450W, 24V 18.8A 451.2W, 36V 12.5A 450W, and 48V 9.4mA 451.2W. The SE-450-3.3 is the lowest-voltage version and also carries the lowest listed power rating at 247.5W.
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Other SE-450 Models
6 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well SE-450-24 Power Supply 450W 24V 18.8A | 451.2W | 24V | 18.8A | Indoor | $71.49 | View |
| Mean Well SE-450-12 Power Supply 450W 12V 37.5A | 450W | 12V | 37.5A | Indoor | $64.77 | View |
| Mean Well SE-450-5 Power Supply 375W 5V 75A | 375W | 5V | 75A | Indoor | $71.59 | View |
| Mean Well SE-450-48 Power Supply 450W 48V 9.4A | 451.2W | 48V | 9.4A | Indoor | $71.49 | View |
| Mean Well SE-450-36 Power Supply 450W 36V 12.5A | 450W | 36V | 12.5A | Indoor | $71.49 | View |
| Mean Well SE-450-15 Power Supply 450W 15V 30A | 450W | 15V | 30A | Indoor | $71.49 | View |
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