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Mean Well LRS-350-4.2 Power Supply 350W4.2V
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Mean Well LRS-350-4.2 Power Supply 350W4.2V
Description
Description
No load power consumption <0.5W for 150W; <0.75W for 200W/350WAC input selectable by switchWithstand 300VAC surge input for 5 secondsUltra compact and 1U low profileWithstand 5G vibration testHigh operating temperature up to 70oCProtections: Short circuit / Overload / Over voltage / Over temp.Cooling by free air convection (150W/200W); forced air cooling by built-in DC fan (350W)Compliance to IEC/EN60335-1(PD3) and IEC/EN61558-1,-2-16 for household appliances (150W)Operating altitude up to 5000 metersLED indicator for power onHigh efficiency, long life and high reliabilityLow cost3 years warranty
Key Features
- ✓115 / 230VAC by switch
- ✓Cold start, 60A at 230VAC
- ✓±10% by potentiometer
- ✓110%~140%
- ✓Hiccup mode, auto-recovery
- ✓115%~145% rated output voltage
- ✓Shut down o/p voltage, re-power on to recover
- ✓I/P-O/P: 3kVAC, I/P-FG: 2kVAC, O/P-FG: 0.5kVAC
- ✓-25~+70°C (refer to output derating curve)
- ✓UL60950-1 approved
- ✓Design refer to EN55022 class A
- ✓9P/9.5mm pitch terminal block
- ✓215x 115x 30
Specifications
Specifications
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BrandMean Well
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SeriesLRS Series
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Power Rating252 Watt
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Output Voltage4.2 Volt
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Rated Current60 Ampere
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Input Voltage90V~264V
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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-25°C~70°C
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Warranty3 Year
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Length8.46 in
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Width4.53 in
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Height1.18 in
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Weight1.68 lb
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Frequently Asked Questions
What kind of loads is the LRS-350-4.2 best suited for at 4.2V?
The LRS-350-4.2 outputs 4.2V at up to 60A (252W) and is well-matched for charging single-cell lithium-ion battery packs at their full-charge voltage, as well as powering high-current embedded logic buses in industrial or telecom equipment. Its 60A output current capability handles large cell arrays or dense board power planes.
How does the LRS-350-4.2 differ from the LRS-350-5 and LRS-350-3.3?
All three share the same 215 × 115 × 30 mm case and 0.76 kg weight. The LRS-350-3.3 delivers 198W at 60A; the LRS-350-4.2 delivers 252W at 60A; and the LRS-350-5 delivers 300W at 60A. The higher output voltage of the LRS-350-5 translates directly to more wattage at the same 60A current limit.
Is the rated power for the LRS-350-4.2 actually 350W?
The LRS-350-4.2's rated output power is 252W (4.2V × 60A), not 350W. The '350' in the model name refers to the series wattage class, but at 4.2V the physics of the voltage × current product caps actual output at 252W.
Does the LRS-350-4.2 support operation in high-temperature industrial enclosures?
The LRS-350-4.2 is rated for -25°C to +70°C operation, so it can function continuously in enclosures that reach 70°C ambient. It also withstands 5G vibration, suitable for machinery or vehicle-mounted cabinet installations.
Can the LRS-350-4.2 power multiple loads simultaneously at 4.2V?
Yes, the supply's 60A output current can be distributed across multiple parallel 4.2V loads as long as total draw remains at or below 60A (252W). The constant-voltage operating mode holds the output at 4.2V provided total demand stays within that current ceiling.
Other LRS-350 Models
6 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well LRS-350-12 Power Supply 350W 12V | 348W | 12V | 29A | Indoor | $27.99 | View |
| Mean Well LRS-350-24 Power Supply — 350W 24V 14.6A | 350.4W | 24V | 14.6A | Indoor | $29.41 | View |
| Mean Well LRS-350-5 Power Supply 350W 5V | 300W | 5V | 60A | Indoor | $37.04 | View |
| Mean Well LRS-350-15 Power Supply 350W 15V | 348W | 15V | 23.2A | Indoor | $37.13 | View |
| Mean Well LRS-350-48 Power Supply 350W 48V | 350.4W | 48V | 7.3A | Indoor | $33.64 | View |
| Mean Well LRS-350-36 Power Supply 350W 36V | 349.2W | 36V | 9.7A | Indoor | $35.09 | View |
