Huawei R4850N2 48V 50A 3000W Telecom Hot Swap Rectifier Module

Specifications

Product Overview

The Huawei R4850N2 is full digital high-density switching rectifier designed to match Huawei ETP series embedded telecom power systems. Rated max 56.1A/3000W@53.5VDC, it converts wide-range single-phase 85~300VAC alternating current into adjustable 42~58VDC standard telecom voltage. Adopts advanced full digital control and active PFC technology, peak working efficiency reaches over 94%, full-load power factor ≥0.99 and low input harmonic distortion ≤5%. Standard drawer hot-swap plug structure allows on-site replacement without shutting down the whole power cabinet; built-in CAN bus realizes real-time data interaction with cabinet monitoring unit, supporting remote parameter adjustment and fault alert. Widely used for FTTx OLT cabinet, DSLAM equipment and indoor/outdoor 4G/5G micro base station power upgrade & spare replacement globally.

Key Features

Ultra-wide AC input:85~300VAC(45~66Hz), dual rated 110V/220V input option, adapt global unstable grid and diesel generator power

Adjustable DC output:42~58VDC(default53.5VDC), max56.1A constant power, auto power derating below 176VAC input

Active PFC design, full-load PF≥0.99, THD≤5%, peak efficiency≥94% to reduce long-term electricity consumption

Full hot-swap plug-and-play construction, front pull-out design for rapid maintenance without system power cut-off

Intelligent thermostatic variable speed fan cooling, auto fan speed control based internal temperature for low noise and extended lifespan

Comprehensive multi-protection:OVP/UVP/OCP/SCP/OTP + input surge protection for harsh sealed cabinet environment

CAN bus communication interface, support real-time status upload, remote voltage/current setting via cabinet master controller

Certified by CE, UL, TUV, FCC & RoHS, stable operation from -40℃ up to +75℃, max 4000m working altitude

Technical Specifications

Applications

Huawei ETP Series Cabinet Matching FTTx OLT Embedded DC Power Module

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

DSLAM Fiber Access Network Cabinet Rectifier Replacement

Pole-mounted Unmanned Outdoor Communication Cabinet Power 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.