Product Overview
The ETP48400‑C3B1 is a next‑generation 3U 19‑inch rack high‑density embedded DC power system designed specifically for 5G base stations, macro sites, stock station expansion & reconstruction, and new 3G/4G/5G wireless sites. It converts wide‑range AC input into stable adjustable –48V / –57V DC output, with a maximum capacity of 400A / 24kW and ultra‑high power density in a compact 3U chassis.
Adopting an innovative modular architecture, full digital intelligent control and front maintenance design, this system supports modular distribution expansion, multi‑level power‑down management and intelligent peak shaving. It is the preferred high‑efficiency, high‑reliability power solution for 5G network construction and station capacity upgrade.
Key Features
Ultra‑high power density: 3U height with max capacity 24kW / 400A, saving cabinet space significantly
Innovative architecture design, supports modular distribution expansion for flexible capacity upgrade
Wide AC input range 85–300VAC, compatible with unstable grids and generator power supply
Supports –57VDC constant voltage output to meet 5G high‑power AAU long‑distance power supply
Equipped with intelligent power distribution unit, supports multi‑level power‑down management for 5G diversified services
Intelligent peak shaving & valley filling: grid adaptive adjustment, reduces station operation cost
Supports Huawei BoostLi lithium battery for intelligent battery management and extended battery life
Hot‑swappable rectifier modules (R4875G), plug‑and‑play replacement without system shutdown
Full front maintenance & front wiring, easy installation and later maintenance
Intelligent SMU02C monitoring: real‑time data display, fault alarm, remote online maintenance
Wide operating temperature –40°C ~ +70°C, suitable for high‑altitude & harsh environments
Complete protection: OVP, OCP, SCP, OTP, LVBD, surge protection
High power factor ≥0.99, low THD, green and grid‑friendly
Compliant with CE, RoHS, UL and global telecom safety standards
Technical Specifications
| Item | Details |
| Model | ETP48400‑C3B1 |
| System Type | 3U 19‑inch 5G high‑density embedded DC power system |
| AC Input | 85–300VAC, 45–65Hz; three‑phase / single‑phase compatible |
| DC Output | –42V ~ –58VDC; supports –57VDC constant voltage |
| Max Output Current | 400A |
| Max Output Power | 24kW |
| Matching Rectifiers | R4875G (max 6 pcs) |
| Monitoring Unit | SMU02C |
| Power Distribution | DCDB48‑200‑16B (optional modular expansion) |
| Peak Efficiency | Up to 96% |
| Power Factor | ≥0.99 |
| Cooling | Intelligent fan cooling |
| Maintenance | Full front maintenance & front wiring |
| Dimensions (W×D×H) | 482 × 330 × 220 mm |
| Weight | Approx. 20 kg (without modules) |
| Operating Temp | –40°C ~ +70°C |
| Storage Temp | –40°C ~ +70°C |
| Humidity | 5%–95% RH (non‑condensing) |
| Certifications | CE, RoHS, UL, Telecom Standard |
| Warranty | 12 Months |
| Application | 5G sites, station expansion, telecom room |
Applications
5G macro base stations & new wireless sites
Stock wireless station expansion & reconstruction
3G / 4G base station new construction & capacity upgrade
High‑power communication equipment rooms & IDC edge nodes
Transmission network & backbone communication equipment
Outdoor integrated cabinets & harsh environment communication sites
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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