Huawei R4850G1/R4850G2 48V 50A 3000W Telecom Rectifier | For ETP4820 Power System

Specifications

Product Overview

The Huawei R4850G1/R4850G2 is full digital high-frequency switching rectifier module specially developed for Huawei ETP4820 embedded telecom power system. Rated 3000W/56A max output @48VDC, it converts wide-range single-phase AC to adjustable 42~58VDC standard communication voltage(default53.5VDC). Adopts advanced LLC soft-switch + active PFC topology, peak conversion efficiency reaches over 96% with full-load PF≥0.99 and ultra-low THD≤5%. Standard drawer hot-swap pluggable design enables online replacement without powering off the whole cabinet, multiple modules parallel current sharing for flexible capacity expansion. Widely used in FTTx OLT, DSLAM cabinet and indoor/outdoor 4G/5G micro base station power configuration and old cabinet spare replacement projects.

Key Features

Ultra-wide AC input:85~300VAC(45~66Hz), dual input specification 100~120V/200~240V for global different grid environments

Adjustable DC output:42~58VDC(default53.5VDC), max continuous 56A@3000W, automatic power derating under low AC input voltage

Active PFC design, full-load PF≥0.99, THD≤5%, peak efficiency≥96% to lower long-term running power cost

Full hot-swap plug-and-play construction, front pull-out structure for quick maintenance without system shutdown

Intelligent thermostatic variable speed fan, auto adjust rotating speed based internal temperature to reduce idle noise and extend fan service life

Built-in multi-layer safety protection: OVP/UVP/OCP/SCP/OTP plus input surge protection against unstable grid damage

CAN bus communication interface for real-time data linkage with ETP4820 monitoring unit, remote parameter setup & fault alarm upload

Pass CE, UL, TUV, RoHS international certifications, stable operation from -40℃ up to +75℃ wide ambient temperature

Technical Specifications

Applications

Huawei ETP4820 Matching FTTx OLT Cabinet Embedded DC Power

Indoor & Outdoor 4G/5G Micro Small Cell Base Station Backup Power

DSLAM Fiber Access Network Cabinet Rectifier Replacement

Pole-mounted Unmanned Outdoor Communication Cabinet Power Upgrade

Old Huawei ETP Series 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.

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.