Product Overview
The Huawei R4850S1 is ultra-high efficiency digital hot-swap rectifier designed exclusively for Huawei ETP series embedded telecom power systems, widely used as upgrade replacement for R4850G/N series modules. Rated 3000W/56.1A max output at default 53.5VDC, it converts 85~300VAC wide-range alternating current into adjustable 42~58VDC standard telecom voltage. Adopts advanced high-frequency soft-switch topology with peak efficiency reaching 98%, full-load PF≥0.99 and ultra-low input THD≤5% to reduce long-term electricity cost. Standard 1U drawer hot-plug structure allows live maintenance without cabinet shutdown; built-in CAN bus enables real-time data exchange with system monitor for remote parameter setup and fault alarm, ideal for new telecom cabinet configuration and old equipment energy-saving renovation of FTTx, 4G/5G base stations globally.
Key Features
Ultra-wide AC input:85~300VAC(45~65Hz, nominal100/220V dual specification), compatible global civil grid and diesel generator unstable power
Adjustable DC output:42~58VDC(default53.5VDC), max56.1A constant power output, precise voltage regulation ≤±0.6%
Industry-leading peak efficiency up to 98%, ≥96% efficiency under 30%~100% rated load, effectively cut site operational power consumption
Full active PFC design, full-load PF≥0.99, input THD≤5%, comply international grid harmonic standards
Complete hot-swap plug-and-play, front pull-out structure for rapid module replacement without powering off the whole cabinet
Intelligent thermostatic variable speed fan, auto speed regulation by inner temperature to lower running noise and extend fan lifespan
Full multi-layer safety protection:OVP/UVP/OCP/SCP/OTP plus AC input lightning surge protection
CAN bus communication interface, support remote monitoring, voltage/current adjustment and fault upload via cabinet master controller
Pass CE,UL,TUV,FCC,RoHS certifications, stable full-power output up to 4000m altitude, -40℃~+75℃ wide working range
Technical Specifications
| Item | Details |
| Model | R4850S1 |
| Brand | Huawei |
| AC Input | 85~300VAC,45~65Hz,Nominal100/220VAC,Max17A |
| DC Output | Adjustable42~58VDC(Nom53.5V),Max56.1A/3000W |
| Peak Efficiency | Up to 98% |
| Full Load PF | ≥0.99 |
| THD | ≤5% |
| Dimension | 40.8×105×281mm |
| Net Weight | ≤2kg |
| Cooling | Intelligent Variable Speed Forced Air Cooling |
| Communication | CAN Bus |
| Working Temp | -40℃ ~ +75℃(Full power below65℃) |
| Max Full-power Altitude | ≤4000m |
| Certifications | CE,UL,TUV,FCC,RoHS |
| MOQ | 1 PCS |
| Unit Price | $111.11/PCS(1~9pcs) |
| Monthly Supply | 1000PCS |
| Packing | PE+Foam+Export Standard Carton |
| Warranty | 12 Months |
Applications
Huawei ETP Series Cabinet Matching FTTx OLT Embedded DC Power Supply
Indoor & Outdoor 4G/5G Micro Small Cell Backup Power Module
DSLAM Fiber Access Network Cabinet Old Rectifier Upgrade Replacement
Pole-mounted Unmanned Outdoor Communication Cabinet Energy Retrofit
Old Huawei ETP Power Cabinet Capacity Expansion Project
Mini Edge Data Room Auxiliary Uninterrupted DC Power
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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