Taking Another Step Forward
The company obtained multiple intellectual property rights (patents/trademarks, etc.) and established a new company, continuously expanding its business landscape and moving toward a higher stage of development.
LRS-350 Single Output Power Supply
LEYU
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Specification
OUTPUT | |||||||
Model | LRS-350-3.3 | LRS-350-5 | LRS-350-12 | LRS-350-15 | LRS-350-24 | LRS-350-36 | LRS-350-48 |
DC Voltage | 3.3V | 5V | 12V | 15V | 24V | 36V | 48V |
Rated Current | 60A | 60A | 29A | 23.2A | 14.6A | 9.7A | 7.3A |
Current Range | 0~60A | 0~60A | 0~29A | 0~23.2A | 0~14.6A | 0~9.7A | 0~7.3A |
Rated Power | 198W | 300W | 348W | 348W | 350.4W | 349.2W | 350.4W |
Ripple & Noise | 150mVp-p | 150mVp-p | 150mVp-p | 150mVp-p | 150mVp-p | 200mVp-p | 200mVp-p |
Voltage Adj. Range | 2.97~3.6V | 4.5 ~ 5.5V | 10~ 13.8V | 13.5~18V | 21.6~28.8V | 32.4~39.6V | 43.2~52.8V |
Voltage Tolerance | ±4.0% | ±3.0% | ±1.5% | ±1.0% | ±1.0% | ±1.0% | ±1.0% |
Line Regulation | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% | ±0.5% |
Load Regulation | ±2.5% | ±2.0% | ±1.0% | ±0.5% | ±0.5% | ±0.5% | ±0.5% |
Setup, Rise Time | 1300ms, 50ms/230VAC 1300ms, 50ms/115VAC at full load | ||||||
Hold Up Time | 16ms/230VAC 12ms/115VAC at full load | ||||||
INPUT | |||||||
Voltage Range | 90 ~ 132VAC / 180 ~ 264VAC selected by switch 254 ~ 370VDC (switch on 230VAC) | ||||||
Frequency Range | 47 ~ 63Hz | ||||||
Efficiency | 79.50% | 83.50% | 85% | 86% | 88% | 88.50% | 89% |
AC Current | 6.8A/115VAC 3.4A/230VAC | ||||||
Inrush Current | 60A/115VAC 60A/230VAC | ||||||
Leakage Current | <2mA / 240VAC | ||||||
PROTECTION | |||||||
Over Load | 110 ~ 140% rated output power | ||||||
Protection type: Hiccup mode, recovers automatically after fault condition is removed | |||||||
Over Voltage | 3.8~4.45V | 5.75~6.75V | 13.8 ~ 16.2V | 18~21V | 28.8 ~ 33.6V | 41.4~46.8V | 55.2~ 64.8V |
Protection type: Hiccup mode, recovers automatically after fault condition is removed | |||||||
Over temperature | Hiccup mode, recovers automatically after fault condition is removed | ||||||
ENVIRONMENT | |||||||
Working Temp. | -20 ~ +70℃ (Refer to “derating curve”) | ||||||
Working Humidity | 20 ~ 90% RH non-condensing | ||||||
Storage Temp., Humidity | -40 ~ +85℃, 10 ~ 95% RH | ||||||
Temp. Coefficient | ±0.03%/℃ (0 ~ 50℃) | ||||||
Vibration | 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes | ||||||
OTHERS | |||||||
Dimension | 215*115*30mm (L*W*H) | ||||||
Weight | 0.76Kg | ||||||
Packing | 15pcs/carton/12.4kg/0.78CUFT | ||||||
The LEYU LRS-350 series is a highly reliable 350W enclosed-type switching power supply designed for industrial and commercial integration. Distinguishing itself with a unique 30mm ultra-slim profile, this series allows for easy installation in standard 1U height chassis or space-constrained control cabinets. The LRS-350 utilizes a built-in cooling fan with automatic ON-OFF control, ensuring optimal thermal management under full load while maintaining an impressive power density.
Argument : The LRS-350 maximizes system integration capacity in compact environments.
Evidence : Traditional 350W power supplies often exceed 40mm-50mm in height. The 30mm profile of the LRS-350 meets the strict 1U height standard, enabling engineers to design thinner industrial tablets, 3D printers, and telecommunication racks without compromising the 350W power requirement.
Advantage 2: Industrial-Grade Environmental Ruggedness
Argument : Ensures reliable operation in harsh factory environments and mobile machinery.
Evidence : The unit has been validated through a 5G vibration test (10-500Hz, 10min/cycle, for 60min each along X, Y, Z axes). This mechanical resilience, combined with a 100% full-load burn-in test, guarantees that the LRS-350 remains stable in applications prone to motion and mechanical stress, such as CNC machines or transportable devices.
Advantage 3: Advanced Thermal Intelligence
Argument : Extends component lifecycle through smart cooling management.
Evidence : The LRS-350 features a built-in DC fan with a logic-controlled circuit. The fan only operates when the internal temperature reaches a specific threshold, significantly reducing unnecessary noise and energy waste during idle periods while preventing thermal degradation of high-grade capacitors during peak loads.
3D Printing Industry:
Stable DC power for heated beds and high-speed stepper motors (e.g., Ender, Voron models).
Industrial Automation:
Powering PLCs, industrial sensors, and motor drivers in standard racks.
LED Signage & Displays:
Reliable source for high-brightness outdoor and indoor LED modules.
Mechanical & Electrical Equipment:
Ideal for laser cutting machines, CNC controllers, and automated packing lines.
Q: Do I need to manually switch the input voltage for 220V use?
A: Yes. Ensure the "115V/230V" selection switch on the side is set to "230V" before powering on to prevent damage in high-voltage regions.
Q: What is the benefit of the "1U" height for my project?
A: It allows the power supply to fit into standard 1.75-inch height racks, which is the industry standard for telecommunications and server equipment.
Q: Can this power supply handle a temporary overload?
A: The LRS-350 features a "Hiccup mode" protection. It will shut down if the load exceeds 110%-140% and recover automatically once the fault is removed.
Table of Contents
Leyu , based in Wenzhou Leqing, enjoys a developed economy and convenient air, water, rail, and road transport. For 14 years, we have specialized in designing and producing switching power supplies and off-grid solar inverters, with CE, ROHS, CCC, IP67, and ISO9001 certifications. Our modern production and testing equipment ensure reliable performance—our 0.3‰ defect rate far exceeds the national 3% standard.
We offer OEM/ODM services (design, prototyping, production, testing, delivery) backed by senior engineers and strong R&D partnerships. Leyu products are exported to over 50 countries across Europe, the Americas, Southeast Asia, South America, and Africa. Our young, energetic foreign trade team (avg. 3 years’ experience) and our commitment to sincere, attentive service have built a trusted brand. As a high-tech enterprise integrating R&D, production, sales, and technical support, Leyu strives to become a national-class electrical company.
2021
Late 2020
Taking Another Step Forward
The company obtained multiple intellectual property rights (patents/trademarks, etc.) and established a new company, continuously expanding its business landscape and moving toward a higher stage of development.
A New Era of Operations
An International Operations Department was formed by seven people, covering multiple platforms. The establishment of the Operations Department marked the beginning of a new digital, multi channel era for "Leyu".
Moving to New Premises
The Foreign Trade Department moved entirely out of the factory into a brand new office building, neighboring Yueqing Ali and Times Square, upgrading both the working environment and brand image.
Shenzhen Presence
Foreign trade business expanded to Shenzhen with the establishment of a branch office, getting closer to cutting-edge markets and resources.
Factory Upgrade
The factory underwent comprehensive renovation and relocation, improving production capacity and environmental standards.
Independent Department & Market Expansion
The Foreign Trade Department was formally established, extending the sales network from Southeast Asia to Europe and accelerating internationalization.
Stepping into Foreign Trade
The company shifted its focus to foreign trade, successfully obtained foreign trade qualification certification, and officially started its overseas market journey.
Renaming and New Beginning
To expand capital scale and explore broader markets, the original "Yueqing Leyu Electric Co., Ltd." was officially renamed "Zhejiang Leyu Electric Co., Ltd.", laying the foundation for the company's upgrading and development.
Leyu always puts customers at the center, integrates sincere service into every step, and with solid technology, reliable quality, efficient response, and worry-free transportation, becomes your trustworthy long-term partner.
Leyu cooperates with multiple reliable logistics partners to provide efficient and safe domestic and international shipping solutions, ensuring products reach customers on time and in perfect condition.
Leyu has established a rapid response mechanism, patiently listens to customer feedback, and promptly resolves any issues during use, so customers have no worries.
Leyu provides full-process technical support from product design, drawing, and R&D to testing, ensuring that customized needs are professionally fulfilled.
Leyu strictly implements quality control that is 100 times better than the national standard (0.3‰ failure rate). All products are certified with CE, ROHS, CCC, IP67, etc., and undergo 100% full-load burn-in testing.
3D Printing & CNC Machining
Industrial Automation & PLC
LED Signage & Video Walls
Telecommunications & IT Hardware
Precision Control: Powers high-speed stepper motors and heated beds with stable, low-ripple DC energy.
High Power Density: Compact 30mm profile allows for seamless integration into the base of compact desktop printers.
Control Cabinet Integration: Reliable power source for PLC controllers, HMI touchscreens, and industrial sensors.
Reliability under Stress: 5G vibration resistance ensures steady operation on factory floors and automated assembly lines.
Constant Voltage Supply: Ideal for high-brightness outdoor LED modules and indoor video displays requiring consistent voltage.
Intelligent Cooling: Built-in fan with automatic control reduces noise while maintaining thermal safety in enclosed displays.
1U Rack Compatibility: Fits perfectly into 1U (1.75 inch) standard racks for networking hubs and communication servers.
Flexible Input: Switchable 115V/230V input ensures compatibility with global power grids in international data centers.
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The OPIP-1000 Pure Sine Wave Inverter is a compact, user-friendly power solution tailored for both off-grid and backup power needs. Measuring just 310×165×90mm and weighing 2820g (net) / 3260g (gross), it fits easily in tight spaces—from RV storage compartments to home utility closets. Its robust construction ensures durability, with a working temperature range of -10°C to +50°C and storage temperature range of -30°C to +70°C, suitable for harsh environments.
■ Features
·Universal AC input/ full range
·Universal input 85~264VAC(277VAC operational)
·No load power consumption<0.3W
·Isolation class Ⅱ
·Protections: Short circuit/ Over load/ Over voltage/ Over temperature
·DC output voltage adjustable
·Protections : Short circuit / Overload / Over voltage
·Cooling by free air convection (working temperature:-30~+70°C)
·DIN rail TS-35/7.5 or 15 mountable
·LED indicator for power on
·2 years warrant
■ Features
·Universal AC input/ full range
·Universal input 85~264VAC(277VAC operational)
·No load power consumption<0.3W
·Isolation class Ⅱ
·Protections: Short circuit/ Over load/ Over voltage/ Over temperature
·DC output voltage adjustable
·Protections : Short circuit / Overload / Over voltage
·Cooling by free air convection (working temperature:-30~+70°C)
·DIN rail TS-35/7.5 or 15 mountable
·LED indicator for power on
·2 years warrant
Founding Year
Years of Innovation
Global Reach
Employees Worldwide
Choosing Leyu means choosing quality control that is 100 times stricter than the national standard (0.3‰ vs. 3%), globally recognized certifications (CE/ROHS/CCC/IP67), and switching power supplies & off-grid inverters verified in over 50 countries — backed by excellent craftsmanship and sincere service, safeguarding every power connection you make.
Leyu Electric actively participates in numerous professional electrical and new energy exhibitions both domestically and internationally, continuously showcasing core products such as switching power supplies and off-grid solar inverters to global customers. At the booth, the company attracts many visitors with its modern craftsmanship, authoritative certifications (CE, ROHS, CCC, IP67), and quality standards that exceed national requirements.
Through live demonstrations and in-depth discussions, Leyu not only conveys its innovative design and customized OEM/ODM service capabilities but also strengthens its connections with markets in over 50 countries, including Europe, the Americas, Southeast Asia, South America, and Africa. Each exhibition serves as a powerful testament to the brand's strength, technical expertise, and commitment to sincere service, further consolidating Leyu's reputation as a responsible industry benchmark.
We put customers first — listening to your needs, providing premium products, and offering outstanding service to fully meet your expectations.
ROHS-HLG
LRS-CE
GTS
CE-Adapter
CE
How many voltage you can supply?
5V,9V,12V,13.8V,15V,18V,24V,36V,48V,50V,60V,110V(Depend on items).
How many current you can supply?
0.5A,1A.1.5A.2A,3A.4A,5A,6A,10A,15A,20A,30A,40A,50A,60A,80A.
How about the quality?
We have the best professional and experienced engineer and strict QA and QC system.Repair rate under 0.1%-0.2%.
What's your delivery time?
Sample or small quantity order delivery in3-5 working days, large quantity order normally ship in 10-20working days.
How to request a sample? Can the sample be engraved with a logo?
Leyu supports sample orders with MOQ as low as 1 piece and accepts custom logo on samples for OEM orders (minimum quantity and cost negotiable with our sales team). Bulk orders support full OEM/ODM customization including case color, label design, and packaging.
If you have any questions or requirements regarding portable outdoor power solutions, please feel free to contact our customer service team. Our professional team will provide you with detailed product information, answer your questions, and tailor the best solution to meet your needs.
Mob:0577-62998958
E-mail:Leyu@leyuelec.com