LRS-250 AC/DC Switching Power Supply

Description:

The LRS-250 is a high-power, single-output switch-mode power supply from SMUN, a trusted name in the industry. Offering a 250-watt output capacity, this series is designed for applications that require a dependable and efficient DC power source. Key characteristics and benefits of the LRS-250 include:

• Applications:
  

The LRS-250 switch-mode power supply, with its high power, stability, and wide applicability, is widely used in various industries and specific application scenarios. Here are some typical uses of the LRS-250:

• Industrial Automation Control:

Serving as a reliable DC power source, the LRS-250 is suitable for supporting various industrial automation equipment such as PLCs (Programmable Logic Controllers), servo drives, HMIs (Human-Machine Interfaces), sensors, and actuators, ensuring their smooth operation under complex working conditions.

• Military Equipment & Scientific Instruments:

Given its high stability and wide input voltage adaptability, the LRS-250 is employed in military hardware, laboratory test equipment, precision measurement instruments, and other applications where power quality demands are exceptionally stringent, ensuring device accuracy and reliability fluctuations.

• LED Lighting Systems:

This power supply can provide a constant DC voltage for various LED luminaires and displays, ensuring uniform and flicker-free light output by mitigating brightness variations caused by power fluctuations.

• Telecommunication Equipment & Power Infrastructure:

In telecommunication base stations, routers, switches, and power monitoring and protection devices, the LRS-250 serves as a critical power component, providing a stable operating environment for electronic components and ensuring the smooth functioning of communication networks and power systems.

• Medical & Home Appliance Devices:

For medical equipment (e.g., patient monitors, therapeutic devices) and household appliances (e.g., air purifiers, smart refrigerators), the LRS-250 delivers compliant, clean DC power, ensuring safe and efficient operation.

Features:

• Universal AC input/Full range

• Built-in Emi filter,tiny ripple

• Protections:short circuit/overload/over voltage

• Cooling by free air convection

• 43,000 hours of continuous operation at 20℃

• 100% full load burn-in test
  

• LED indicator for power on

• Compliance to IEC/EN60335-1(PD3) and IEC/EN61558-1,2-16 suitable for home appliance

• 3 years warranty

Specifications:

Model		LRS-250-12	LRS-250-15	LRS-250-24	LRS-250-36	LRS-250-48
Output	DC Voltage	12V	15V	24V	36V	48V
	Current Range	0-21A	0-17A	0-10.5A	0-7A	0-5.3A
	Rated Power	252W	255W	252W	252W	255W
	Ripple Noise(Max)	100mVp-p	150mVp-p	150mVp-p	150mVp-p	150mVp-p
	Voltage Adj.Range	10.5~13.8V	13.5~18V	21.6~28.8V	32.4~39.6V	43.2~52.8V
	Voltage Tolerance	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%
	Line Regulation	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
	Load Regulation	±1.0%	±0.5%	±0.5%	±0.5%	±0.5%
	Set up,Rise time	1500ms,30ms/230VAC   1500ms,30ms/115VAC(full load)
	Hold up Time	16ms/230VAC     12ms/115VAC(full load)
Input	Voltage Range	85 ~132VAC/170~264VAC  selected by switch   240~373VDC(switch on 230VAC)
	Frequency	47 ~ 63Hz
	Efficiency	87%	88%	89%	89%	90%
	AC Current	4A/115VAC    2.2A/230VAC
	Inrush Curent	COLD START: 60A/230VAC
	Leakage Current	<2mA / 240VAC
Protection	Overload	110 ~ 140% rated output power
		Protection tye:12-36V Hiccup mode,recovers automatically after fault condition is removed
	Over Voltage	13.8~16.2V	18.8~21.8V	28.8~33.6V	41.4~48.6V	55.2~64.8V
		Protection type : Shut off o/p voltage, re-power on to recover
Environment	Working Temperature	-20 ~ +70℃ (Refer to derating curve as datasheet from SMUN)
	Working Humidity	20 ~ 90% RH non-condensing
	Storage Temp.Humidity	-45 ~ +85℃, 20 ~ 95% RH non-condensing
	Temp.Coefficient	±0.03%/℃ (0 ~ 50℃)
	Vibration	10~500Hz,2G 10 min/1 cycle,60min.each X Y Z axes
Safety	Safety Standards	GB4943.1,EN60950.1 Approved
	Withstand Voltage	I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC
	Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC/25℃/70% RH
	EMC Emission	EN61000-3-2:2014/EN61000-3-3:2013
	EMC Immunity	EN 55032:2015/EN55035:2017/60950-1
Others	MTBF	≥347.5K hrs MIL-HDBK-217F(25℃)
	Dimension	215*115*30mm (L*W*H)
	Packing	0.66Kg; 20pcs/13.2Kg/CTN
Note	1.All parameters NOT specially mentioned are measured at 230VAC input,rated load and 25℃ of ambient temperature. 2.Ripple noise are measured at 20MHz of bandwidth by using a 12"twisted pair-wire terminated with a 0.1uf and 47uf parallel capacitors. 3.Tolerance includes set up tolerance,line regulation and load regulation. 4.Derating output is required under low input voltage.Please refer to derating curve for details. 5.The power supply should be considered as a part of the components in the system.All EMC tests will test samples on a metal iron plate with a thickness of 1mm,a length of 360mm and width of 36mm. 6.Please contact with SMUN customer service for more details.

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