Mean Well LRS-50-12 enclosed power supply unit 12V 50W 4.2A

Model Number: LRS-50-12

Input Voltage: 85~264V AC | 120~373V DC

Output Voltage: 12V DC

Power: 50W

Working temperature: -30~70°C

Power Consumption: <0.2W

Size: 99 x 82 x 30 mm

Protection: Short-circuit, Overload, Over voltage, Over temperature

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£16.80 (VAT incl.)
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Mean Well LRS-50-12 enclosed power supply unit 12V 50W 4.2A
The LRS-50-12 is another model in the family of low-profile power supplies. The 50W power supply has a smaller size and higher efficiency compared to the previous generation RS-50

The device can be powered from a wide range of input voltage 85-264V AC or 120-373V DC, while the output is available 12 VDC voltage which the user can adjust (within ± 10%) using the built-in trimmer.

It is worth emphasizing that the power supply can withstand temporary (5s) input voltage up to 300V AC thus increasing its reliability. The model uses a number of protections such as: short-circuit, overload, overvoltage. Ventilated metal casing with a low profile (height 30mm) allows the device to be used with an open air circulation.

In comparison to RS-50, the temperature range has been extended and for LRS-50 is from -30 ° C to + 70 ° C. Resistance to vibration up to 5G enables the use of power supplies wherever we deal with vibrations and shocks. The LRS-50-12 meets a number of safety standards, including UL, CUL, TUV, CCC, CB and CE certificate. An important aspect is also a competitive price - lower by more than 20% compared to RS-50.

Thanks to special brackets, the power supply can be installed vertically or horizontally on a DIN rail. The new LRS-50 model will meet the requirements of users who value quiet operation, energy efficiency and high efficiency. It is dedicated to applications in automation systems, mechanics, electronics, and in all places where a low power supply profile is required.

Mean Well LRS-50-12 enclosed power supply unit 12V 50W 4.2A specification

Output voltage

12 V DC

Nominal current

4.2 A

Current range

0 ~ 4.2 A

Nominal power

50 W

Output voltage tolerance


Input voltage range

85 ~ 264 V AC | 120 ~ 373 V DC

Nominal frequency

47 ~ 63 Hz



Alternating current

0.7 A / 115 V AC | 0.4 2A / 230 V AC


Short-circuit | Surge voltage overload

Working temperature

from -30 ° C to + 70 ° C

Operating humidity

20 ~ 90% RH without condensation

Compliance with standards

UL60950-1, TUV EN60950-1, EN60335-1, EN61558-1 / -2-16, CCC GB4943


99 x 82 x 30 mm


0.23 kg

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Product Details

Data sheet

Rated Power
Rated Voltage
Ingress Protection
2 years
Pack Quantity
Original retail colour packaging
Country/Region Of Manufacture
12V power supply

Specific References

Shipping Info
Wholesale shipping
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