High Efficiency Rack Mount Modular Telecom DC Power Rectifier System

Product Description

Product Description

The advanced modular design makes it a compact system and can provide enough power to meet the requirements of Communication and Power Industrial systems, consistent with the characteristics of rack-mounted systems.

This system can consist of one or multiple rectifier modules together with the monitor modules. The power of rectifier systems can vary, depending on the quantity of rectifier modules.

The rectifier system provides load power, battery float current, and battery-equalized current during normal operating conditions. This type of rectifier system is a constant power design, meaning within the normal operating ambient temperature range and input voltage range, available output power is constant. During those standard ranges, the rectifier system works automatically according to the load demands. If ambient temperature rises above or input voltage falls below acceptable values, the rectifier will continue to operate but at de-rated output power levels (please refer to the rectifier module working Voltage range).

For any initial output voltage setting 40~60VDC, output voltage remains constant, regardless of load. This is the normal operating condition, in which loads are being supplied and batteries are float charged. Rectifiers operate in the Constant Voltage Mode unless load increases exceeding the power rating of the system, which causes the rectifiers to operate in Constant Current mode (please refer to the output Capacity of the different rectifier module).

Core Advantages
Modular Hot-Swappable Design, Easy Maintenance & Expansion
Equipped with plug-and-play rectifier modules (e.g., MR483000LH series), supporting hot-swap operation. Modules can be replaced online without power outage, minimizing downtime and simplifying maintenance.
N+1/N+X redundant configuration: Multiple modules work in parallel, with automatic load balancing. If a single module fails, the system automatically distributes load to remaining modules, ensuring continuous power supply.
Flexible capacity expansion: Add modules on demand to increase system power, adapting to business growth without replacing the entire system.
 
High Efficiency & Stable Power Output
Adopts advanced high-frequency switching rectifier technology, with ≥96% conversion efficiency at full load, reducing energy consumption and operating costs for communication rooms.
Outputs stable 48V DC (adjustable 43.2-57.6V), with ultra-low ripple and noise, fully complying with telecom industry standards, and perfectly compatible with 5G base stations, core network equipment, and data center servers.
Wide AC input range (90-300V), adapting to unstable grid conditions in remote areas, ensuring system stability.

Intelligent Monitoring & Remote Management
Front-facing LCD display + operation buttons, real-time monitoring of system voltage, current, module status, and fault alarms, with clear and intuitive operation.
Equipped with RS485, Ethernet (SNMP) communication interfaces, supporting remote monitoring, centralized network management, and integration with power environment monitoring systems, realizing unattended operation of base stations.
Comprehensive protection: Over-voltage, under-voltage, over-current, over-temperature, short-circuit, and reverse polarity protection, with automatic alarm and fault recording functions.
 

Industrial-Grade Reliability & Rack-Mount Design
Standard 19-inch 2U/3U rack-mounted structure, with reinforced mounting ears, suitable for direct installation in communication cabinets and data center racks, saving space and simplifying wiring.
Built-in intelligent temperature-controlled cooling system, with independent heat dissipation for each module, ensuring long-term stable operation under full load in high-temperature environments.
High-quality internal components: Imported IGBT modules, high-reliability electrolytic capacitors, and thickened copper heat sinks, with a service life of over 10 years.

Main Products

Company Profile

Guangzhou Expansuccess Technology Co., Ltd., founded in 2026, is a professional high-tech enterprise integrating R&D, production, manufacturing and global sales of variable frequency power supplies and power testing equipment. Adhering to the core values of Quality First, Integrity-Based and Customer Foremost, the company has been committed to providing stable, high-performance and intelligent power solutions for manufacturers, laboratories and industrial users around the world since its establishment. We focus on solving key power supply challenges in product R&D testing, production aging, quality inspection and reliability verification for export-oriented enterprises. With advanced design concepts, strict production control and professional technical capabilities, we provide precision, efficiency, stability and clean power solutions to help customers improve product quality, optimize production efficiency and enhance international market competitiveness. Our main products include single-phase variable frequency power supplies, three-phase variable frequency power supplies, programmable variable frequency power supplies, single-phase transformers, three-phase transformers, programmable electronic loads and high-voltage power supplies. These products are widely used in home appliance manufacturing, motor testing, electronic manufacturing, IT industry, 

computer equipment, communication equipment, new energy, laboratory research and industrial automation fields. They are especially suitable for international markets with different voltage and frequency standards such as 110V/60Hz, 220V/50Hz, 220V/60Hz, 380V/50Hz and 400V/60Hz. At present, our products have been exported to many countries and regions in Europe, the United States, South America, Asia and the Middle East, and have obtained EU CE certification, which fully meets the access requirements of the international market. Relying on reliable quality, superior performance and complete supporting services, we have won high recognition and trust from customers at home and abroad. We provide customers with comprehensive after-sales service system, including one-year free whole-machine warranty, lifetime maintenance, free on-site operation training and full-range technical guidance. From product selection, scheme design to installation, commissioning and after-sales support, we provide customers with one-stop integrated power protection solutions, truly realizing the full-cycle service from equipment supply to system guarantee. Guangzhou  Expansuccess Technology will continue to take technological innovation as the driving force, quality as the foundation, and customers as the center. We are determined to become a reliable global partner in the field of variable frequency power supplies and power testing equipment, and help more Chinese manufacturing products go to the world smoothly.

Company Advantages

Certifications

Buyer Group Photo

Packaging & Shipping

FAQ

1. What is a Variable Frequency Drive (VFD)?

A Variable Frequency Drive (VFD) is an electronic device used to convert the frequency of an input AC signal into a desired output frequency. It is typically used to regulate the speed of electric motors or to adapt power systems to meet varying voltage and frequency requirements.

 

2. What is a transformer? How does it work?

A transformer is an electrical device that transfers electrical energy between two or more circuits through the principle of electromagnetic induction. Depending on the requirements of the power system, it can step up (increase) or step down (decrease) voltage levels.

 

3. What is an electronic load tester?

An electronic load tester is a device used to simulate the operating conditions of a power supply or battery under actual load scenarios. It facilitates the testing of the performance of power supplies, batteries, and other electrical equipment under controlled conditions.

 

4. What is a DC power supply?

A DC power supply provides a stable output of Direct Current (DC) voltage. It is commonly used to power various electronic devices, charge batteries, conduct laboratory testing, and for other similar applications.

 

5. Can all products be customized?

Yes, customization is available; however, you will need to provide us with your detailed customization requirements.

 

Shipping & Delivery

 

6. How long will it take to receive my order?

Delivery times depend on your shipping address and the shipping method you select. Generally, the timeframe is determined by the specific product parameters and whether any customization is required. Please contact us directly for an exact delivery time estimate.

 

7. Do you offer international shipping?

Yes, we offer international shipping services to most countries. Shipping costs and delivery times vary depending on your shipping address and the size of your order. You can obtain a shipping cost estimate during the checkout process.

 

8. Can I track my order?
Yes, once your order has been shipped, you will receive a tracking number via email, allowing you to monitor the delivery status of your package in real-time.
We have a dedicated logistics team with specialists assigned to track and follow up on your order.
 
Orders & Payment
 
9. What payment methods do you accept?
We accept a variety of payment methods, including credit/debit cards (Visa, MasterCard, American Express), PayPal, and bank transfers.
 
10. Will I have to pay taxes or customs duties?
International orders may be subject to customs duties and taxes in accordance with the regulations of the destination country. For specific details, please consult your local customs authority.
We can also offer shipping channels that include customs duties in the total cost. Please contact us directly for specific details.
 
11. Can I modify my order after placing it?
Orders can only be modified prior to shipment. If you need to make any changes to your order, please contact our customer service team immediately. After-Sales Support
 
12. What is your warranty policy?
We offer warranty coverage for most of our products. The standard warranty period is typically one year from the date of purchase. For specific warranty terms, please refer to the details provided on the respective product pages.
 
13. How do I return or exchange a product?
If you are not satisfied with your purchase, please contact our customer service team within 7 days of receiving the product to obtain instructions for a return or exchange. Returned or exchanged items must be unused and in their original condition.
 
14. How can I obtain technical support for a product?
If you encounter any technical issues, please contact our support team via email or phone. Our technical experts will assist you with troubleshooting and provide solutions for various product-related issues.