Product Overview
The Huawei R4850G and R4850G2 are high-efficiency digital rectifier modules independently developed, designed to match Huawei ETP48 series embedded power cabinets such as ETP48100-B1. With a rated output of 3000W/50A (max 56.1A) at the default 53.5VDC, they convert 85~300VAC wide-range single-phase AC power into adjustable 42~58VDC standard telecom DC voltage. Adopts full digital control and active PFC technology, achieving peak efficiency above 96% and full-load power factor ≥0.99, which effectively reduces power loss and operating costs. The module features a standard front pull-out hot-swap structure, enabling online replacement without shutting down the entire cabinet. Equipped with CAN and RS485 dual communication interfaces, it realizes real-time data monitoring, remote parameter configuration and automatic current sharing among parallel modules via the cabinet monitoring unit. It is widely used for new deployment, capacity expansion and spare replacement of indoor and outdoor 4G/5G base stations, FTTx OLT and DSLAM cabinets.
Key Features
Ultra-wide AC input: 85~300VAC, 45~66Hz, compatible with 100-120V and 200-240V global grids; automatic power derating below 176VAC to adapt unstable power and diesel generator power supply
Adjustable DC output: 42~58VDC (default 53.5V), max 56.1A constant current, high voltage regulation accuracy ≤±0.2% to meet different battery charging requirements
Excellent energy performance: Peak efficiency ≥96%, full-load PF≥0.99, THD≤5%, low harmonic pollution and low standby power consumption
Hot-swap design: Front pull-out plug-and-play structure, no power cut required during maintenance, greatly improving on-site work efficiency
Intelligent cooling: Thermostatic variable speed fan automatically adjusts speed according to internal temperature, running with low noise and extending service life
Comprehensive protection: Built-in OVP, UVP, OCP, SCP, OTP and lightning surge protection to ensure stable operation in harsh environments
Multiple communication: CAN & RS485 dual interfaces support remote management, multi-module parallel and automatic current sharing
Wide adaptability: Working temperature -40℃ ~ +75℃, stable operation up to 4000m altitude; compliant with CE, UL, FCC, RoHS and other international certifications
Technical Specifications
| Item | Details |
| Model | R4850G / R4850G2 |
| Brand | Huawei / XDSD |
| AC Input | 85~300VAC, 45~66Hz, Nom 100/120V & 200/240V, Max 17A |
| DC Output | Adjustable 42~58VDC(Nom53.5V), Nom50A / Max56.1A / 3000W |
| Peak Efficiency | ≥96% |
| Full Load PF | ≥0.99 |
| THD | ≤5% |
| Dimension | 90×250×390mm |
| Net Weight | 3.3kg |
| Cooling | Intelligent Variable Speed Forced Air Cooling |
| Communication | CAN Bus + RS485 |
| Working Temp | -40℃ ~ +75℃ |
| Storage Temp | -40℃ ~ +75℃ |
| Max Full-power Altitude | ≤4000m |
| Certifications | CE, UL, FCC, RoHS |
| MOQ | 1 PCS |
| Unit Price | $99.90/PCS(1~49pcs) |
| Weekly Supply | 100PCS |
| Packing | Export Standard Carton |
| Warranty | 1-3 Years |
| Customization | Support Logo & Color OEM |
Applications
Huawei ETP48 Series Embedded Telecom Power Cabinet Matching Rectifier Module
Indoor & Outdoor 4G/5G Macro and Micro Base Station DC Backup Power
FTTx OLT & DSLAM Fiber Access Cabinet Power Supply Replacement & Upgrade
Pole-mounted Unmanned Outdoor Communication Cabinet Power Retrofit
Old Huawei ETP Power Cabinet Capacity Expansion Project
Mini Edge Data Room Auxiliary DC Power Source
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.
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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 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 fields. With rich 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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