Meanwell LRS-300E Switching Power Supply

Meanwell LRS-300E-5 LRS-300E-4.2 Switching Power Supply

The Meanwell LRS-300E Switching Power Supply provides efficient and reliable power conversion with a wide input voltage range and built-in protection mechanisms. Available in 5V and 4.2V output options.

Product Number

LRS-300E-5

LRS-300E-4.2

Meanwell LRS-300E-5 LRS-300E-4.2 Switching Power Supply Description

The Meanwell LRS-300E-5 LRS-300E-4.2 are reliable and efficient power supply designed for powering LED displays and other electronic devices. With a maximum output power of 300 watts and a fixed output voltage of 5V/4.2V, it ensures stable and consistent power delivery. This model features a compact, enclosed design with built-in protections against overcurrent, overvoltage, and short circuits, making it suitable for a wide range of applications.
Its high efficiency and cooling fan help maintain optimal performance while minimizing heat and energy consumption. Ideal for LED displays and various other electronic projects, the LRS-300E-5 LRS-300E-4.2 combines durability with reliability.

Product Features:
· Efficient Power Conversion: Converts AC power (from the mains) into a stable DC output suitable for sensitive electronic components.
· Overload Protection: Ensures safety by automatically shutting down in case of overload conditions.
· Output Power: Delivers a maximum of 300 watts of power.
· Output Voltage: Fixed output of 5V DC, ensuring consistent voltage for connected devices.
· Compact Design: Enclosed, a space-saving form factor suitable for various installation environments.
· Cooling System: Includes a built-in fan for efficient heat dissipation, enhancing performance and longevity.
· Protection Mechanisms: Equipped with overcurrent, overvoltage, and short-circuit protection to safeguard connected equipment and the power supply itself.
· High Efficiency: Provides high energy efficiency to reduce power consumption and operating costs.
· Reliable Construction: Built with durable components to ensure long-term reliability and consistent performance.
· Wide Input Voltage Range: Accepts a broad range of input voltages (typically from 90V to 264V AC), making it versatile for different power environments.

Meanwell LRS-300E Series Switching Power Supply Specification:

MODEL		LRS-300E-5	LRS-300E-4.2
OUTPUT	DC VOLTAGE	5V	4.2V
	RATED CURRENT	60A	60A
	CURRENT RANGE	0 ~ 60A	0 ~ 60A
	RATED POWER	300W	252W
	RIPPLE & NOISE (max.) Note.2	150mVp-p	150mVp-p
	VOLTAGE ADJ. RANGE	4.5 ~ 5.5V	3.6 ~ 4.4V
	VOLTAGE TOLERANCE Note.3	±3 .0%	±3 .0%
	LINE REGULATION Note.4	±0 .5%	±0 .5%
	LOAD REGULATION Note.5	±2 .0%	±2%
	SETUP, RISE TIME	1500ms,50ms/230VAC
	HOLD UP TIME (Typ.)	16ms/230VAC
INPUT	VOLTAGE RANGE	180 ~ 264VAC 254 ~ 370VDC
	FREQUENCY RANGE	47 ~ 63Hz
	EFFICIENCY (Typ.)	80%
	AC CURRENT (Typ.)	3.5A/230VAC
	INRUSH CURRENT (Typ.)	70A/230VAC
	LEAKAGE CURRENT	<0 .75mA / 240VAC
PROTECTION	OVER LOAD	110 ~ 140% rated output power
	OVER LOAD	Protection type : Hiccup mode , recovers automatically after fault condition is removed
	OVER VOLTAGE	5.6 ~ 7V	4.6 ~ 5.4V
	OVER VOLTAGE	Protection type : Shut down o/p voltage , re-power on to recover
	OVER TEMPERATURE	Shut down o/p voltage , re-power on to recover
ENVIRONMENT	WORKING TEMP.	-20～+60℃(Refer to "Derating Curve")
	WORKING HUMIDITY	20 ~ 90% RH non-condensing
	STORAGE TEMP., HUMIDITY	-20 ~ +85℃, 10 ~ 95% RH
	TEMP. COEFFICIENT	±0 .03%/℃ (0 ~ 50℃)
	VIBRATION	10 ~ 500Hz , 5G 10min./1cycle , 60min. each along X , Y, Z axes
Safety	WITHSTAND VOLTAGE	I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
Safety	ISOLATION RESISTANCE	I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
OTHERS	MTBF	235K hrs. MIL-HDBK-217F (25℃)
	DIMENSION	21511530mm (LWH)
	PACKING	0.75Kg;15pcs/12.3Kg/0.78CUFT
NOTE	1. Unless otherwise specified, all specifications are measured at an input of 230VAC, rated load, and an ambient temperature of 25°C. 2. Ripple and noise are measured using a 12" twisted pair-wire terminated with a 0.1μF ceramic capacitor and a 47μF electrolytic capacitor under a 20MHz bandwidth. 3. Accuracy includes setting error, line regulation, and load regulation.

Download Resource:
Meanwell LRS-300E Series Switching Power Supply Specification(Chinese)

①Shipping Fee
We offer a fixed shipping fee of $78 per order, regardless of size or weight, making shipping costs predictable and manageable.

②Handling Time
Orders for in-stock items are processed within 24 hours. Some items may require an additional 48-72 hours for processing, and we will notify you if this is the case.

③Delivery Time
Our typical delivery time is 3-7 days, depending on your location. In rare cases of delays due to weather, regulations, or holidays, we appreciate your understanding.

④Customs & Duties
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For more details, please see our [Complete Shipping Policy].

Meanwell-LRS-300E-5-Switching-Power-Supply

Meanwell-LRS-300E-5-Switching-Power-Supply-2

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Product Number	LRS-300E-5 , LRS-300E-4.2

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SKU: MWLRS300EXX Categories: Switching Power Supply, I = 51-60A, U = 5.0VDC, Vin = 200-240VAC

Description

MODEL		LRS-300E-5	LRS-300E-4.2
OUTPUT	DC VOLTAGE	5V	4.2V
	RATED CURRENT	60A	60A
	CURRENT RANGE	0 ~ 60A	0 ~ 60A
	RATED POWER	300W	252W
	RIPPLE & NOISE (max.) Note.2	150mVp-p	150mVp-p
	VOLTAGE ADJ. RANGE	4.5 ~ 5.5V	3.6 ~ 4.4V
	VOLTAGE TOLERANCE Note.3	±3 .0%	±3 .0%
	LINE REGULATION Note.4	±0 .5%	±0 .5%
	LOAD REGULATION Note.5	±2 .0%	±2%
	SETUP, RISE TIME	1500ms,50ms/230VAC
	HOLD UP TIME (Typ.)	16ms/230VAC
INPUT	VOLTAGE RANGE	180 ~ 264VAC 254 ~ 370VDC
	FREQUENCY RANGE	47 ~ 63Hz
	EFFICIENCY (Typ.)	80%
	AC CURRENT (Typ.)	3.5A/230VAC
	INRUSH CURRENT (Typ.)	70A/230VAC
	LEAKAGE CURRENT	<0 .75mA / 240VAC
PROTECTION	OVER LOAD	110 ~ 140% rated output power
	OVER LOAD	Protection type : Hiccup mode , recovers automatically after fault condition is removed
	OVER VOLTAGE	5.6 ~ 7V	4.6 ~ 5.4V
	OVER VOLTAGE	Protection type : Shut down o/p voltage , re-power on to recover
	OVER TEMPERATURE	Shut down o/p voltage , re-power on to recover
ENVIRONMENT	WORKING TEMP.	-20～+60℃(Refer to "Derating Curve")
	WORKING HUMIDITY	20 ~ 90% RH non-condensing
	STORAGE TEMP., HUMIDITY	-20 ~ +85℃, 10 ~ 95% RH
	TEMP. COEFFICIENT	±0 .03%/℃ (0 ~ 50℃)
	VIBRATION	10 ~ 500Hz , 5G 10min./1cycle , 60min. each along X , Y, Z axes
Safety	WITHSTAND VOLTAGE	I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
Safety	ISOLATION RESISTANCE	I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
OTHERS	MTBF	235K hrs. MIL-HDBK-217F (25℃)
	DIMENSION	21511530mm (LWH)
	PACKING	0.75Kg;15pcs/12.3Kg/0.78CUFT
NOTE	1. Unless otherwise specified, all specifications are measured at an input of 230VAC, rated load, and an ambient temperature of 25°C. 2. Ripple and noise are measured using a 12" twisted pair-wire terminated with a 0.1μF ceramic capacitor and a 47μF electrolytic capacitor under a 20MHz bandwidth. 3. Accuracy includes setting error, line regulation, and load regulation.