Huawei R4850S1 48V 50A 3000W Ultra High Efficiency Telecom Rectifier Module

Specifications

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

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.

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.

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.

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.

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.

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.

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.