2U Rack-mount DC Power System Modular Rectifiers Wide AC Input

2U Rack-mount DC Power System Modular Rectifiers Wide AC Input


Product Overview of 2U Rack-mount DC Power System

The ET48 series 2U rack-mounted DC power system is a high-capacity solution designed for telecom networks, data centers, and industrial facilities requiring reliable DC supply. It supports 220VAC single-phase input, delivering a stable –43 to –58VDC output with a rated value of –53.5VDC. With a maximum capacity of 9kW, this system ensures sufficient power for large-scale applications while maintaining efficiency above 96%.

The system integrates up to 3 rectifier modules(N+1 redundancy), each rated at 3000W and weighing ≤2kg. These modules feature forced cooling, high power factor ≥0.99, and THD ≤5%, ensuring clean and stable DC power conversion. With front maintenance, top cable entry, and IP20 protection, the design prioritizes safety, serviceability, and ease of integration into 19-inch racks.

DC distribution includes 2*125A battery breakers and 4*32A+4*50A load breakers, providing flexible and secure load management. The intelligent controller supports 3 analog inputs, 7 digital inputs, 6 dry contact alarms, and remote communication via RS232/485 and SNMP. Local monitoring is enabled through an LCD display.

Built for challenging environments, the unit operates from –40℃ to +65℃, withstands 5–95% non-condensing humidity, and maintains stable operation at altitudes up to 3000m. With its modular architecture and robust performance, the 2U DC power system is an ideal choice for critical infrastructure requiring scalable and dependable energy solutions.

System of 2U Rack-mount DC Power System

Dimension: 482.0(W) × 350.0(D) × 2U(H)
Weight: ≤20kg (without rectifiers)
Cooling mode: Natural cooling
Installation mode: Installed on 19-inch rack or inside the cabinet
Cabling mode: Top inlet and top outlet
Maintenance mode: Front maintenance, support module grade change
Protection level: IP20

AC Distribution of 2U Rack-mount DC Power System

Input mode: 220VAC single phase

Input capacity: 2×63A/1P

Input frequency: 45–66Hz, rated value: 50Hz/60Hz

AC SPD: 20kA/40kA, 8/20μs

DC Distribution of 2U Rack-mount DC Power System

Output voltage: –43 ~ –58VDC, rated value: –53.5VDC

Maximum capacity: 9kW(3*3kw, N+1 redundancy)

Battery breakers: 2×125A/1P

Load breakers: LLVD: None; BLVD: 4×32A/1PN+4×40A/1PN

DC SPD: 10kA, 8/20μs

Controller of 2U Rack-mount DC Power System

The controller of 2U Rack-mount DC Power System adopts ARM32-bit Cortex-M4 CPU as primary processor, it offers many features and functions, and a morerobust, user-friendly, and easy-to-use interface. The controller provides powerful hybrid powermanagement functions, including management of diesel generator,VRLA and lithium-ion batteries andsolar modules.

Introduction 

ESTEL(GUANGDONG)TECHNOLOGY CO., LTD, located in China, is a professional supplier of integrated outdoor telecom cabinet and temperature control solutions for outdoor telecom base station. As a science and technology innovative company, we engage in the R&D, manufacture, and sales of telecommunication equipment. Estel has a well-established team of technical and management experts who can meet customers’ specific needs accurately.

The base station integrated solutions and products include outdoor integrated telecom equipment cabinet, battery cabinet, RRU cabinet, power supply cabinet, environment monitoring system, TEC peltier air conditioner, AC220V compressor air conditioner, DC48V variable frequency air conditioner, heat exchanger, rectifier, UPS, embedded telecom power system etc. All the above solutions and products can be custom made.

Our products and solutions have been deployed all over China. Our main domestic customers are China Telecom, China Mobile, China Unicom, State Grid, Shenzhen / Beijing Metro and Huawei / ZTE etc. In addition, our products have been exported to Europe, North America, South America, Central America, Southeast Asia, Africa, Australia, Mid East countries, etc.

“ Customers First, Quality First ” is always our principle. We have attained many certifications, such as ISO9001, ISO14001, OHSAS18001, CE, UL, FCC etc. AS a telecom integrated solutions / energy saving system integrator in China, We have strong advantages in technology competitiveness, management competitiveness ,service competitiveness and price competitiveness. Through many years of experiences in design, production and implementation of different projects around the world, we have gained great reputation. Relying on professional technique and strict quality control, we will continuously offer high cost-effective products and solutions to our respectable customers globally. We will always try our best to meet customers’ need and requirement.

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