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:
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:
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.
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.
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.
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.
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. |
