Huawei R4875G1 1U 48V 75A 4000W Telecom Rectifier Module

Specifications

Product Overview

The Huawei R4875G1 is a 1U high-density digital rectifier module, specially designed for Huawei ETP series embedded power systems and various telecom power equipment. With a rated power of 4000W and maximum output current of 75A at the default 53.5VDC, it converts 85~300VAC wide-range single-phase alternating current into adjustable 42~58VDC standard telecom voltage. Adopts advanced full digital control and soft-switch technology, the peak efficiency reaches 97%, and full-load power factor is over 0.99, effectively reducing long-term energy consumption. This module features standard hot-swap design for online replacement without system shutdown. Equipped with CAN and RS485 dual communication interfaces, it enables real-time data monitoring, remote parameter configuration and multi-module automatic current sharing via the cabinet monitoring unit. Compact 1U size saves rack space, making it widely applied in 4G/5G macro base stations, large FTTx OLT cabinets, data centers and old power cabinet renovation projects.

Key Features

Ultra-wide AC input: 85~300VAC, 45~66Hz, compatible with global civil power grids and diesel generators; linear power derating below 176VAC to ensure operational safety

Adjustable DC output: 42~58VDC (default 53.5V), max 75A constant current, voltage regulation accuracy ≤±0.6% to meet different battery charging demands

Outstanding energy efficiency: Peak efficiency up to 97%, efficiency above 96% under 30%~80% load; full-load PF≥0.99 and THD≤5% to minimize harmonic loss

1U compact structure: Standard rack size, small footprint, perfect for high-density cabinets and limited-space installation scenarios

Hot-swap design: Front pull-out plug-and-play structure, no power cut required during maintenance and system expansion

Intelligent cooling: Built-in thermostatic variable speed fan, automatically adjusts fan speed according to internal temperature, low noise and long service life

Comprehensive protection: Integrated OVP, UVP, OCP, SCP, OTP and lightning surge protection for stable operation under harsh conditions

Dual communication: CAN bus and RS485 interfaces support remote management, real-time fault alarm and automatic current sharing for parallel modules

Wide environmental adaptability: Working temperature -40℃ ~ +75℃, full power output below 55℃; stable operation up to 5000m altitude; certified by CE, TUV, UL, FCC, RoHS

Technical Specifications

Applications

Huawei ETP Series High-density Telecom Cabinet Main Power Module

4G/5G Macro Base Station & Large Micro Cell DC Backup Power

Large-scale FTTx OLT and DSLAM Cabinet Embedded Power Supply

Data Center 48V DC Auxiliary Power System Configuration

Old High-capacity Communication Cabinet Capacity Expansion & Replacement

Industrial High-power 48V DC Power Matching Equipment

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.