Huawei M48500N1 Pure White Background Hardware Shot 3
HuaweiModel: M48500N1

Huawei M48500N1 Carrier-Grade High-Frequency Telecom Rectifier Module (-48V 50A 3000W)

The Huawei M48500N1 is a carrier-grade high-frequency switched-mode telecom rectifier module designed to convert single-phase AC utility power (85V AC to 300V AC) into a highly stabilized -48V DC nominal output (adjustable from 42V to 58V DC, default 53.5V DC), delivering 3000W maximum rated power at up to 50A with a peak conversion efficiency of ≥95.0%.

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Rated Output Voltage
-48VDC (-42V ~ -58V)
Maximum Output Current
50A
Rated Output Power
3000W
Maximum Efficiency
≥ 95.0%
AC Input Voltage
85V AC ~ 300V AC
Operating Temperature Range
-40°C ~ +75°C

What this product is

What this product is

The module integrates an Active Power Factor Correction (APFC) front stage with an isolated DC/DC resonant converter back stage, achieving a power factor of ≥0.99 and total harmonic distortion (THDi) under 5%. Internal microcontrollers continuously monitor operational parameters and relay diagnostics via an onboard CAN bus to central Power System Monitoring Units (SMU), enabling precision active parallel current sharing, smart battery temperature-compensated charging, and complete compliance with IEC/EN 60950 and ETSI standards.

What problem it solves

It eliminates grid instability vulnerabilities such as severe undervoltage brownouts, high-energy transients, and utility phase shifts that frequently destroy standard industrial power supplies. Furthermore, it addresses DC bus voltage fluctuations during rapid load transitions, removes the risk of battery bank overcharging/thermal runaway, and eliminates service interruptions through non-disruptive hot-swap capability.

Who and where it is for

Engineered for 4G/5G macro cell base station power cabinets, outdoor integrated telecom shelters, central enterprise switching centers, optical transmission nodes, distributed antenna systems (DAS), and mission-critical industrial -48V DC uninterruptible distribution setups.

Core advantages

  • Wide AC input range (85V-300V AC) handles unstable grids and severe voltage sags effortlessly.
  • Peak conversion efficiency exceeding 95% with active PFC and ultra-low THDi below 5%.
  • Supports live hot-swappable replacement and CAN bus communication for dynamic current sharing.
  • Intelligent variable-speed forced air cooling complying with strict IEC/EN 60950 telecom standards.

Technical specifications

Key specificationsValue
Rated Output Voltage-48VDC (-42V ~ -58V)
Rated Output Power3000W
AC Input Voltage85V AC ~ 300V AC
Maximum Output Current50A
Maximum Efficiency≥ 95.0%
Operating Temperature Range-40°C ~ +75°C
Cooling SystemForced Air Cooling with Intelligent Speed Fan
Hot-Swappable SupportYes (Live Hot-Pluggable / Plug-and-Play without Power Interruption)

Applications

01

DC power plant expansion within Huawei TP48200B, TP48300B, and similar telecom subracks

02

Wireless cellular macro sites, edge RAN, and 5G small cell infrastructure power supply

03

Railway communications, trackside signaling networks, and electrical utility SCADA systems

04

Carrier aggregation centers, enterprise colocation facilities, and optical transport hubs

Frequently asked questions

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HuaweiModel: 4850N2

Huawei 4850N2 High-Efficiency Digital Switching Telecom Rectifier (53.5V 50A 3000W)

Achieving a peak efficiency exceeding 94.5%, the 4850N2 combines full digital control topology with an intelligent speed-regulated brushless DC cooling fan for superior power density. Designed for rugged electrical environments, it features active power factor correction (PFC), comprehensive CAN bus communication, and true live hot-plug capability, guaranteeing carrier-grade reliability and exceptionally high MTBF.