Huawei EPW50-48A Robust Telecom Rectifier Module (48V 50A 3000W)
The Huawei EPW50-48A is an industrial-grade switch-mode AC/DC power module utilizing digital DSP control and active PFC to deliver clean regulated -48V DC power
HuaweiModel: R4875G1
Huawei R4875G1 High Power Telecom Rectifier Module (48V 75A 4000W)
The R4875G1 is a high-efficiency power system designed for telecommunication facilities and industrial infrastructure.
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- AC Input Voltage
- 85VAC ~ 300VAC (Nominal 200~240VAC)
- DC Output Voltage
- -48VDC (-42V ~ -58V)
- Rated Output Current
- 75A (maximum 83.3A)
- Rated System Output Capacity
- 4000W (high-voltage input mode)
- Power Conversion Efficiency
- ≥ 96.5% (up to 97.0%)
- Cooling Method
- Forced-air cooling with intelligent temperature control and dual fans
What this product is
What this product is
Huawei R4875G1 High Power Telecom Rectifier Module -48V 75A 4000W features a modular architecture and high-reliability components for simplified maintenance and monitoring.
What problem it solves
Resolves power conversion inefficiency, confined space constraints, and complex battery lifecycle management.
Who and where it is for
Suitable for telecom base stations, data centers, edge computing aggregation nodes, and industrial DC applications.
Core advantages
- Ultra-High Efficiency: Peak efficiency up to 96.5%, significantly reducing operating power consumption and carbon emissions.
- Wide Voltage Input: Supports ultra-wide input from 85VAC to 300VAC, easily handling harsh power grid environments.
- High Power Density: Delivers up to 4000W output power, effectively saving valuable equipment room space.
- Intelligent Cooling: Utilizes smart dual-fan forced air cooling to ensure stable and reliable operation under full load.
Technical specifications
| Key specifications | Value |
|---|---|
| AC Input Voltage | 85VAC ~ 300VAC (Nominal 200~240VAC) |
| DC Output Voltage | -48VDC (-42V ~ -58V) |
| Rated Output Current | 75A (maximum 83.3A) |
| Rated System Output Capacity | 4000W (high-voltage input mode) |
| Power Conversion Efficiency | ≥ 96.5% (up to 97.0%) |
| Cooling Method | Forced-air cooling with intelligent temperature control and dual fans |
| Overall System Efficiency | Up to 96.2% (Gold Standard) |
| Ingress Protection Rating | IP20 (Indoor Dust & Finger Proof) |
| Acoustic Noise | ≤ 55 dBA (at 25°C ambient load) |
| Dielectric Withstand Voltage | 3000VAC Input to Ground (< 5mA) |
Applications
01
Telecom 4G/5G macro cellular base stations and distributed remote power sites
02
Enterprise-grade cloud data center mission-critical -48V DC power distribution lineups
03
Utility power grid dispatch centers and high-voltage substation DC switchgear rooms
04
Railway transit signaling, automated train control, and communications equipment rooms
Frequently asked questions
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