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Mean Well LRS-450-12 Power Supply 450W 12V
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Mean Well LRS-450-12 Power Supply 450W 12V
Brand MEANWELL
AC input voltage range: 90 ~ 132VAC
Rated power: 450W
AC input range selectable by switch
Withstand 300VAC surge input for 5 second
Protections: Short circuit / Overload / Over voltage / Over temperature
Forced air cooling by built-in DC fan
Built-in cooling Fan ON-OFF control
1U low profile
Withstand 5G vibration test
LED indicator for power on
No load power consumption < 0.75W
100% full load burn-in test
High operating temperature up to 70℃
Operating altitude up to 5000 meters (Note.8)
High efficiency, long life and high reliability
3 years warranty
Key Features
- ✓180 / 264VAC by switch
- ✓Cold start, 60A at 230VAC
- ✓±10% by potentiometer
- ✓105%~150%
- ✓Constant current limiting, unit will shutdown after 3 sec, re-power on to recover
- ✓5.75 ~ 6.75V, 13.8 ~ 16.2V, 18 ~ 21V, 27.6 ~ 32.4V, 41.4 ~ 48.6V, 55.2 ~ 64.8V
- ✓Shut down o/p voltage, re-power on to recover
- ✓I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
- ✓-20 ~ +70℃ (Refer to "Derating Curve")
- ✓BS IEC/UL 62368-1, EAC TP TC 004,AS/NZS62368.1 approved
- ✓225*124*35mm (L*W*H)
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BrandMean Well
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SeriesLRS Series
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Power Rating450 Watt
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Output Voltage12 Volt
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Rated Current37.5 Ampere
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Input Voltage90V~132V
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No of Output1
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Standards MetCB,CE,CQC,EAC,TUV,UL
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Operation ModeConstant Voltage
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Operating Temperature-20°C~70°C
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Warranty3 Year
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Length8.86 in
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Width4.88 in
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Height1.38 in
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Weight1.87 lb
::specification::
Frequently Asked Questions
What is the input voltage range of the LRS-450-12, and is it compatible with 240V mains?
The LRS-450-12 accepts 90–132VAC input only, making it suited for 120V North American mains but not directly compatible with 230V/240V European or international supply without a step-down transformer. Buyers outside 120V regions should confirm their local mains voltage before selecting this model.
What applications suit the LRS-450-12 at 12V and 37.5A?
At 12V and 37.5A (450W), the LRS-450-12 is well-suited for powering 12V DC motor banks, industrial LED lighting arrays, high-current embedded computing platforms, and automation controllers in 120V environments. The 450W capacity supports multiple parallel 12V loads simultaneously.
How does the LRS-450-12 compare to the LRS-350-12 and LRS-600-12?
The LRS-350-12 (348W, 29A, 90–264VAC input) fits in a 215 × 115 × 30 mm case; the LRS-450-12 (450W, 37.5A, 90–132VAC) uses a slightly larger 225 × 124 × 35 mm case; the LRS-600-12 (600W, 50A, 90–132VAC) steps up to a 225 × 124 × 41 mm enclosure. The LRS-350-12 offers universal AC input, while the LRS-450-12 and LRS-600-12 are limited to 90–132VAC.
Can the LRS-450-12 operate in high-temperature industrial environments?
The LRS-450-12 operates from -20°C to +70°C and withstands 5G vibration. This range accommodates most industrial indoor panel environments. As an open-frame unit, it requires a suitable protective enclosure for any installation with moisture, dust, or airborne contaminants.
What certifications does the LRS-450-12 carry?
The LRS-450-12 is certified CB, CE, CQC, EAC, TÜV, and UL. These cover European market (CE), international safety testing (CB, TÜV), North American listing (UL), Chinese market (CQC), and Eurasian conformity (EAC).
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Other LRS-450 Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well LRS-450-24 Power Supply 450W 24V | 451.2W | 24V | 18.8A | Indoor | $65.58 | View |
| Mean Well LRS-450-36 Power Supply 450W 36V | 450W | 36V | 12.5A | Indoor | $65.58 | View |
