The Huawei 4850N2 is a carrier-grade high-efficiency digital telecom rectifier module rated for -48V DC nominal output (53.5V standard, adjustable from 42V to 58V DC) with a maximum current of 50A and a rated power of 3000W. Engineered with advanced high-frequency switching technology and digital signal processor (DSP) controls, it supplies robust, low-noise DC power for mission-critical telecommunications infrastructure.
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Architecturally, the 4850N2 integrates a high-performance active boost PFC front-end with an isolated LLC resonant DC-DC converter, overseen by real-time DSP microcontrollers for cycle-by-cycle control and monitoring. The unit incorporates two-stage input EMI filtering, robust surge suppression, and synchronous rectification on the secondary side, meeting stringent ITU-T, IEC, and ETSI standards for electrical insulation and safety clearances.
It eliminates equipment damage and service downtime caused by unstable utility grids and severe phase fluctuations through an ultra-wide 85V to 300V AC input window. By delivering rapid digital transient response and precise current limit controls, it prevents DC bus voltage drops during abrupt load spikes and protects battery strings from accelerated sulfation through precise temperature-compensated charging regulation.
Ideal for 4G/5G wireless base transceiver stations, optical fiber transmission nodes, enterprise core data closets, intelligent rail transport communications, and modular integration within Huawei ETP48 and TP48 series power distribution cabinets.
| Key specifications | Value |
|---|---|
| Rated Output Voltage | -48VDC (-42V ~ -58V) |
| Maximum Output Current | 50A |
| Rated Output Power | 3000W |
| AC Input Voltage | 85V AC ~ 300V AC |
| Maximum Efficiency | ≥ 94.5% |
| Operating Temperature Range | -40°C ~ +75°C |
| Cooling System | Forced Air Cooling with Intelligent Speed Fan |
| Hot-Swappable Support | Yes (Live Hot-Pluggable / Plug-and-Play without Power Interruption) |
Huawei
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