Product Overview
The ETP48400‑C4A1 is a carrier‑grade 4U 19‑inch rack embedded DC power system designed for 5G base stations, macro stations, existing station expansion & reconstruction, and high‑power communication equipment rooms. It converts three‑phase AC input into stable adjustable –48V DC output, with a maximum capacity of 400A / 24kW to meet the high‑power demand of 5G equipment.
Adopting a fully modular, hot‑swappable design, front wiring & front maintenance, and intelligent monitoring, this system ensures high efficiency, reliable operation and easy deployment. It supports precise load power‑off control and power metering, making it the preferred high‑power embedded power solution for 5G network construction and station expansion.
Key Features
Standard 19‑inch 4U rack/embedded design, compact structure, high space utilization
Wide three‑phase AC input 220/380VAC, 45–66Hz, strong grid adaptability
Stable adjustable DC output –42V ~ –58VDC (default –53.5VDC), max 400A / 24kW
Supports R4850G2 (50A) / R4875G1 (75A) high‑efficiency rectifier modules, system efficiency up to 96%
Hot‑swappable modules: plug‑and‑play replacement without system shutdown
Full front maintenance & front wiring, easy installation and later maintenance
Intelligent SMU02C monitoring: real‑time data, fault alarm, remote control & communication
Supports secondary load independent power‑off & precise power metering for each user
Intelligent battery management & BLVD/LLVD protection, prolong battery life
Wide operating temperature –40°C ~ +65°C, suitable for high‑altitude & harsh environments
Complete protection: OVP, OCP, SCP, OTP, LVBD, surge protection (30kA)
High power factor ≥0.99, low THD, green and grid‑friendly
Protection class IP20, compliant with CE, RoHS, ETSI and global telecom standards
Technical Specifications
| Item | Details |
| Model | ETP48400‑C4A1 |
| System Type | 4U 19‑inch embedded DC power system |
| AC Input | 220/380VAC three‑phase four‑wire, 45–66Hz |
| DC Output | –42V ~ –58VDC adjustable; Default –53.5VDC |
| Max Output Current | 400A |
| Max Output Power | 24kW |
| Matching Rectifiers | R4850G2 (50A) / R4875G1 (75A) |
| Monitoring Unit | SMU02C |
| Power Factor | ≥0.99 (50%–100% load) |
| Surge Protection | 30kA (8/20μs) |
| Cooling | Natural heat dissipation |
| Maintenance | Full front maintenance & front wiring |
| Protection Level | IP20 |
| Dimensions (W×D×H) | 482.6 × 330 × 177.8 mm |
| Weight | ≤30 kg (without rectifiers) |
| Operating Temp | –40°C ~ +65°C (derated above 55°C) |
| Storage Temp | –40°C ~ +70°C |
| Humidity | 5%–95% RH (non‑condensing) |
| Altitude | Up to 4000 m |
| Certifications | CE, RoHS, ETSI |
| Warranty | 12 Months |
| Application | 5G base station, station expansion, telecom room |
Applications
5G macro base stations & outdoor macro stations
4G/5G station capacity expansion & reconstruction
High‑power communication equipment rooms & IDC edge nodes
Transmission network & backbone communication equipment
Enterprise critical communication & industrial network loads
High‑power embedded cabinet & integrated power distribution scenarios
Why Choose Us
We are a professional manufacturer and one‑stop solution provider for communication DC power systems, boasting mature R&D strength, large‑scale production capacity and flexible service modes. We fully support OEM and OBM cooperation, helping global partners create differentiated power products and brands.
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Powerful R&D & Customization Ability
We have a professional technical team with years of experience in the power industry. We can provide personalized customized services covering power configuration, external interfaces, functional parameters, appearance design and logo printing, to satisfy diverse demands from telecom operators, system integrators and equipment manufacturers.
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Comprehensive OEM & OBM Services
We offer full‑cycle cooperation support from product design, prototype testing, certification to mass production. With efficient development process and strict quality management, we help you quickly launch products and build exclusive brand advantages.
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Large Production Capacity & On‑time Delivery
We own standardized production workshops and complete production lines. Relying on a stable supply chain and mature production technology, we maintain sufficient inventory and strong production capacity, ensuring on‑time delivery even for bulk orders and long‑term cooperative supply.
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Strict Multi‑level Quality Inspection
All products will pass full‑load operation test, high‑low temperature aging test, safety performance test and simulated on‑site operation test before delivery. We adopt high‑quality original components and implement strict quality control standards to guarantee long‑term stable operation of products in various harsh environments.
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Full Lifecycle Technical & After‑sales Support
We establish a complete service system including pre‑sales consultation, in‑sales technical guidance and after‑sales maintenance. Our technical team responds quickly to provide remote debugging, on‑site technical guidance, equipment maintenance training and spare parts supply, protecting the stable operation of your power system all the time.
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Rich Global Project Experience
Our products have been exported to many countries and regions, widely applied in communication, data center, industrial control, new energy and other fields. With rich global project experience, we can provide targeted power solutions for different regional standards and application scenarios.
We sincerely look forward to establishing long‑term stable cooperative partnership with you.
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