Product Overview
The Huawei R4875G1 is an original brand-new high-density digital telecom rectifier module designed to match Huawei ETP series embedded power cabinets and various 48V DC communication power systems. Rated at 4000W /75A output under 53.5VDC nominal, this 1U compact rectifier features full digital control, ultra-high conversion efficiency and hot-swappable design, widely used for 4G/5G macro base stations, FTTx OLT equipment, transmission rooms and industrial DC power projects.
With built-in intelligent speed-adjusting fan and complete multi-level protection circuit, it achieves stable performance from -40℃ up to +75℃ ambient, becoming the preferred replacement and new-install rectifier for global telecom operators and system integrators.
Key Features
Compact standard 1U structure: 40.8×105×281mm, easy to install in 19-inch embedded power cabinets
Ultra-high peak efficiency up to 97%, ≥96 under regular load, effectively cut long-term power consumption
Wide AC input: 85~300VAC (45~65Hz), also supports 85~420VDC HVDC input for hybrid grid scenarios
Adjustable DC output: 42~58VDC, factory default 53.5VDC, max continuous 75A /4000W
Full hot-swappable design: replace module without shutting down the whole power system, zero site downtime
Full digital control + RS485/CAN communication, compatible with Huawei CSU monitoring units for remote data readout & parameter setting
Intelligent variable-speed fan, low noise & temperature-adaptive cooling design
Comprehensive protection: OVP/UVP/OCP/SCP/OTP, anti-surge & lightning protection
Low THD ≤3% (above 50% load), power factor ≥0.99, green energy-saving
Wide operating temperature: -40℃~+75℃, no power derating below 55℃
Certified CE, TUV, UL, RoHS, fully compliant with international telecom standards
Technical Specifications
| Item | Details |
| Model | R4875G1 |
| Brand | Huawei |
| Input Range | 85~300VAC / 85~420VDC, 45~65Hz |
| Nominal DC Output | 53.5VDC (Adjustable:42~58VDC) |
| Rated Output | 75A, 4000W |
| Peak Efficiency | Up to 97% |
| Power Factor | ≥0.99 (≥50% load) |
| THD | ≤3% |
| Size (H×W×D) | 40.8×105×281mm |
| Weight | ≤2.2kg |
| Cooling | Intelligent variable speed built-in fan |
| Communication | RS485, CAN Bus |
| Operating Temp | -40℃ ~ +75℃ |
| Storage Temp | -40℃ ~ +75℃ |
| Humidity | 5%~95%RH non-condensing |
| Max Altitude | ≤5000m |
| Certifications | CE, TUV, UL, RoHS |
| Warranty | 12 Months |
| Matching Cabinet | ETP48 series embedded power cabinet |
Applications
5G/4G Macro & Indoor Small Base Stations
FTTx OLT, ONU Fiber Access Network Equipment
Telecom Transmission & Microwave Communication Cabinets
Edge Data Center & Compact Equipment Rooms
Industrial Automation DC Power Equipment
Outdoor Integrated Communication Cabinets & Hybrid Solar Power Projects
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 and brands.
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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.
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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.
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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.
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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.
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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, equipment maintenance training and spare parts supply, protecting the stable operation of your power system all the time.
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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 other 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.
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