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 0.1μ & 47μ parallel capacitor.
3 .Tolerance: includes set up tolerance, line regulation and load regulation.
4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.
5 . Derating may be needed under low input voltages. Please check the derating curve for more details.
Product Introduction
Leuyu Company’s EDR-480 series is a single-output DIN rail switching power supply designed specifically for industrial control cabinets. The series offers two models: 24V/20A and 48V/10A, both with a rated power of 480W. It meets the power supply requirements of medium-to-high power applications ranging from automated production lines to mechanical equipment distribution.
The EDR-480 adopts active Power Factor Correction (PFC) technology and supports a wide AC input range of 176~264VAC (47~63Hz) as well as 240~370VDC input, adapting to global power grid fluctuations. The unit measures 125.5×125.2×100mm (L×W×H) and weighs approximately 1.3kg. It can be directly mounted on TS-35/7.5 or TS-35/15 standard DIN rails, significantly saving space inside control cabinets. The power supply undergoes 100% full-load burn-in testing and comes with a two-year warranty, making it a reliable solution for stable power delivery in industrial environments.
Product Features
Wide Input & High Efficiency: The globally compatible AC voltage range (176~264VAC) and active PFC function bring the power factor close to 1, reducing harmonic interference. Under 230VAC input, the efficiency of the 24V model reaches 84%, and the 48V model reaches 85%, effectively lowering heat generation.
Multiple Protection Mechanisms: Built-in protections include short circuit, overload, over voltage, and over temperature. Overload protection uses constant current limiting and automatically recovers after the fault is removed. Over voltage protection (30~36V for 24V model, 54~60V for 48V model) shuts down the output and requires a power cycle to recover. Over temperature protection (trip point 100℃±5℃) automatically restarts the unit when the temperature drops.
Harsh Environment Tolerance: Operating temperature range -10℃ to +70℃ with 20%~90% relative humidity (non-condensing); storage temperature -20℃ to +85℃. Vibration resistance: 10~500Hz, 2G acceleration, 10 min./cycle, 60 min. each along X, Y, Z axes – suitable for factories, transportation, and other vibration-prone environments.
Simplified Installation & Maintenance: Fanless natural convection cooling avoids dust intake and fan noise. A green LED indicator shows power-on status. Clearly labeled input/output terminals facilitate easy wiring.
Product Advantages Compared to other 480W DIN rail power supplies, the EDR-480 offers several competitive advantages.
First, reliability under extreme conditions: its hold-up time reaches 24ms at both 115VAC and 230VAC under full load – longer than the industry typical 20ms – ensuring that loads do not drop out during brief grid sags.
Second, low ripple and high precision: the 24V model has output ripple & noise of only 240mVp-p, and the 48V model 480mVp-p (measured at 20MHz bandwidth). The output voltage is adjustable over a wide range (21~28V for 24V type, 43~53V for 48V type) with a voltage tolerance of ±1%, meeting the requirements of sensitive loads such as PLCs and servo drives.
Third, high isolation safety rating: withstand voltage of I/P-O/P 3KVAC, I/P-FG 1.5KVAC, O/P-FG 0.5KVAC; insulation resistance 100MΩ / 500VDC, effectively preventing electric shock and equipment damage.
Fourth, complete electromagnetic compatibility: complies with EN55011, EN55022, EN61000-4 series and many other standards, allowing direct use in CE-certified end equipment and reducing additional filtering costs for customers.
Fifth, controllable inrush current: cold start inrush current is 27A at 115VAC and 45A at 230VAC, avoiding tripping or damage to upstream circuit breakers.
Product Applications
The EDR-480 series is widely used in industrial automation and electromechanical equipment. Typical scenarios include:
PLC Control Systems: Provides stable 24V DC power for CPU modules, I/O modules, and special function modules of brands such as Siemens and Mitsubishi.
Industrial Robots & Servo Systems: The 48V/10A model is suitable for driving low-power stepper motors or supplying braking units and solenoid valves inside robot control cabinets.
Factory Assembly Lines & Packaging Machinery: With 480W high power, it can simultaneously drive multiple sensors, relays, indicator lights, and electric actuators, reducing the number of power supplies inside the control cabinet.
Telecom Base Stations & Security Monitoring: Powers switches, optical transceivers, and cameras in outdoor cabinets. The wide temperature design and fanless cooling prevent overheating in enclosed enclosures.
Photovoltaic & Energy Storage Equipment: The 240~370VDC input capability allows direct power take-off from DC busbars, suitable for auxiliary power needs in some new energy applications.
FAQ
Q: Can the EDR-480 operate at voltages below 176VAC?
A: The designed input range is 176~264VAC. Below 176VAC, the unit may still operate briefly, but output power must be derated. Please refer to the derating curve in the product manual – typically, at 110VAC input, rated power should be reduced by about 20%. If the site frequently experiences voltages below 176VAC, it is recommended to switch to Leuyu’s wide-input series (e.g., 90~264VAC models).
Q: How does overload protection recover? A: When the load exceeds 105%~150% of rated current, the power supply enters constant current limiting mode and the output voltage drops. Once the overload condition is removed (e.g., clearing a short circuit or reducing the load), the power supply automatically resumes normal output without a power cycle. However, if over voltage protection is triggered, the input power must be disconnected and reapplied to recover.
Q: Can units be paralleled to increase total power? A: Direct paralleling is not recommended. The EDR-480 does not have current sharing circuitry; direct paralleling may cause uneven load distribution and potentially damage one unit. For redundancy or higher power, please use dedicated redundancy modules from Leuyu or select a higher-power model such as the NDR-960 series.
Q: What cooling clearances are needed during installation? A: The power supply uses natural convection cooling. Maintain at least 25mm clearance above and below, and 15mm on the sides. Avoid mounting directly above heat-generating components (e.g., large variable frequency drives). The ambient temperature should not exceed 70℃. If the temperature inside the control cabinet exceeds 50℃, reduce the load according to the derating curve or add forced exhaust fans.
Q: Will leakage current trip residual current devices (RCDs)? A: The leakage current of this power supply is less than 3.5mA (at 240VAC), meeting IEC standards. However, if multiple power supplies share a single 30mA RCD in an industrial setting, the accumulated leakage may approach the trip threshold. It is recommended to use a Type B or Type C industrial RCD for each power supply individually, or select an RCD with a 100mA trip rating to avoid nuisance tripping.
Q: Can output ripple be further reduced? A: The ripple specified in the datasheet is measured with a 0.1μF + 47μF parallel capacitor and 20MHz bandwidth. If the load is extremely sensitive to noise (e.g., precision analog circuits), an external LC filter network can be added at the output, or a higher-grade Leuyu power supply can be selected (the typical ripple of the EDR-480-24 can actually be below 150mVp-p). Note the measurement method: use twisted-pair wires and measure close to the load.
Q: Does the product have CE/UL certification? A: The EDR-480 series has passed EMC tests according to EN55011, EN55024, etc. Safety complies with IEC/EN 60950-1 or IEC/EN 62368-1 requirements. For the latest certification status, please check the product label or contact Leuyu Company. This power supply is considered a “component” and final equipment must be re-confirmed for overall EMC compliance.
Q: What about packaging and warranty? A: Standard packaging is 12 units per carton, total gross weight 15.5kg, volume approximately 1.2 cubic feet. The warranty period is 2 years, covering defects in material or workmanship under normal use. Damage caused by lightning, overload, incorrect wiring, or operation beyond specifications is not covered.
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.
Company History
2021
Early 2020
2018
2015
2013
2009
2007
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.
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.
A New Era of Operations
An International Operations Department was formed by seven people, covering multiple platforms such as Alibaba International Station, AliExpress, Made in China, Foreign Trade Express, Google, Taobao, and Tmall. The establishment of the Operations Department marked the beginning of a new digital, multi channel era for "Leyu".
Professional 18-year China manufacturer of switching power supplies and off-grid solar inverters. CE, ROHS, ISO9001 certified, low defect rate, supports OEM/ODM customization, fast global delivery for industrial, LED, medical and solar power projects.
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This is a comprehensive practical guide to DIN rail power supplies for industrial use. It introduces product basics, application scenarios and core selection criteria, and provides detailed step-by-step installation & wiring instructions. Common faults, troubleshooting and professional purchasing & maintenance tips are also included. It serves as a valuable reference for engineers, technicians and B2B buyers.
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TOP SELLING PRODUCTS
The laser cutting speed is fast, the incision is smooth and flat, and there is generally no need for subsequent processing.
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.
Certificates
We always focus on customers, pay attention to their needs, provide high-quality products and excellent services to meet their expectations.
ROHS-HLG
CE-LRS
GTS
CE-Adapter
CE
FAQ
How many voltage you can supply?
5V,9V,12V,13.8V,15V,18V,24V,36V,48V,50V,60V,110V(Depend on items).
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.
Welcome To Contact Us
If you have any questions or needs about our products or services, please feel free to contact us at any time. We look forward to working with you and providing you with the best packaging solutions.
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