Vertiv / Emerson R48-2900U 48V 2900W Telecom Rectifier Module

Specifications

Product Overview

The Vertiv (formerly Emerson) R48‑2900U is a high‑reliability, full‑digital telecom rectifier module designed for communication base stations, FTTx, data transmission equipment, access devices and compact embedded power systems. It converts wide‑range AC input into stable adjustable –48V DC output, delivering rated power 2900W and max output current 50A.

Adopting advanced DSP control and high‑frequency switching technology, this module achieves up to 92% efficiency, with features including hot‑swap capability, automatic current sharing, comprehensive protection and strong environmental adaptability. It is a proven core component for stable and maintenance‑free DC power supply.

Key Features

High efficiency up to 92%, low power consumption and heat generation

Wide AC input range 85–290VAC, 45–65Hz, compatible with unstable power grids

Stable adjustable DC output –42V ~ –58VDC, max current 50A, rated power 2900W

Power factor >0.99, low harmonic distortion, grid‑friendly

Hot‑swappable design, online replacement without system shutdown

Automatic digital current sharing, current imbalance ≤±3%, supports parallel expansion

Full electrical protection: overvoltage, overcurrent, short circuit, overheating, input undervoltage

LED status indicators for real‑time operation and fault visualization

Compact structure, light weight, easy for rack integration and maintenance

Wide operating temperature –5°C ~ +65°C, strong environmental adaptability

Compliant with CE, RoHS and global telecom safety standards

Technical Specifications

Applications

4G / 5G mobile base stations and wireless access sites

Telecom OLT and fiber optical access network equipment

Edge data centers and IDC equipment rooms

Microwave transmission and fixed communication systems

Industrial control, automation and critical DC power loads

Compact embedded power systems and communication cabinets

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.

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, equipment maintenance training 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 other fields. With rich global 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.