12V 348W Meanwell SMPS (LRS-350-12)

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LRS-350 series is a 350W single-output enclosed type power supply with 30mm of low profile design. The AC input is 85~264VAC which could be directly supplied from the house supplied voltage. The output from SMPS will be 12V. The SMPS has high efficiency up to 85%, the design is of metallic mesh case which enhances the heat dissipation of LRS-350 that the whole series operates from -25°C through +70°C. It has extremely low no-load power consumption (less than 0.75W), which allows the end system to easily meet the worldwide energy requirement. LRS-350 has complete protection functions and 5G antivibration capability; it complies with international safety regulations such as UL60950-1. LRS-350 series can be used for many purposes with the best performance from it.


  • Universal AC input/ Full range
  • Protections from Short circuit, Overload and Overvoltage
  • Cooling by Fan which works automatically according to the requirement. 
  • It has a LED for indicating power on.
  • 100% full load burn-in test
  • Using 105°C long life electrolytic capacitors for better performance
  • Withstand 300VAC surge input for 5-second
  • Compliance to IEC/EN 60335-1(PD3) and IEC/EN61558-1, 2-16 for household appliances
  • High operating temperature up to 70°C
  • Miniature size and 1U low profile
  • Withstand 5G vibration test
  • No load power consumption<0.3W
  • High efficiency, long life and high-reliability


  • Industrial automation machinery
  • Industrial control system
  • Mechanical and electrical equipment
  • Electronic instruments, equipment or apparatus
  • Household appliances
Model LRS-350-12
Brand Meanwell
DC Voltage 12V
Rated Current 29A
Rated Power 348W
Ripple & Noise 150mVp-p
Voltage Adj. Range 10.2V~13.8V
Voltage Tolerance 1.5%
Line Regulation 0.5%
Load Regulation 1%
Setup, Rise Time 1300ms, 50ms/230VAC 1300ms,50ms/115VAC at full load
Hold Up Time

16ms/230VAC 12ms/115VAC at full load 

Voltage Range 90 ~ 132VAC / 180 ~ 264VAC by switch 240 ~ 370VDC (switch on 230VAC)
Frequency Range


Efficiency 85%


AC Current 6.8A/115VAC 3.4A/230VAC


Over Load 110 ~ 140% rated output power
Protection type : Hiccup mode, recovers automatically
    Working Temperature

    -30°C to 70°C

    Working Humidity



    215*115*30mm (L*W*H)

    Country of Origin China


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