Huawei R4875G1/R4875G/R4875G5 48V 75A 4000W 1U Telecom Rectifier Module

Specifications

Product Overview

The Huawei R4875G1, R4875G and R4875G5 are 1U high-density full digital rectifier modules, specially developed for Huawei ETP series embedded power systems. With rated output of 4000W/75A at default 53.5VDC, they convert 85~300VAC wide-range single-phase AC into adjustable 42~58VDC standard telecom DC voltage. Adopts advanced LLC soft-switch topology and full digital control technology, the peak efficiency reaches 97%, full-load power factor ≥0.99 and THD≤5, delivering outstanding energy-saving performance. All models support front pull-out hot-swap design for maintenance without system shutdown. Equipped with CAN and RS485 dual communication interfaces, they realize real-time data monitoring, remote parameter setting and fault alarm with cabinet monitoring units. These high-power modules are widely applied in 4G/5G macro base stations, large FTTx OLT cabinets, data center DC power systems and old high-capacity telecom cabinet renovation projects.

Key Features

Ultra-wide AC input: 85~300VAC, 45~65Hz, compatible with global civil power grids and diesel generators, automatic power derating under low voltage

Adjustable DC output: 42~58VDC (default 53.5V), max 75A constant current, precise voltage regulation within ±0.5%

Excellent energy efficiency: Peak efficiency up to 97%, efficiency over 96% under 30%~80% load; full-load PF≥0.99, THD≤5% to cut long-term power consumption

1U compact structure & hot-swap design: Standard rack size, front pull-out plug-and-play, no need to power off during module replacement

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

Comprehensive protection: Integrated OVP, UVP, OCP, SCP, OTP and lightning surge protection for full operational safety

Multiple communication: Support CAN bus and RS485 interfaces, compatible with Huawei monitoring platforms for remote management and multi-module automatic current sharing

Wide environment adaption: Working temperature -40℃ ~ +75℃, full power output below 55℃; max 500m full-power altitude, certified by CE, UL, TUV, FCC and 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.