Vertiv(Emerson) R48-1800A 48V 1740W Telecom Rectifier Module

Specifications

Product Overview

The Vertiv R48-1800A (Former Emerson eSure Series) is cost-effective digital switching rectifier developed for Vertiv NetSure PS48 series embedded telecom power cabinets. Rated nominal 1740W/30A@53.5VDC(max 1800W peak), it converts wide-range single-phase 85~305VAC alternating current into adjustable 42~58VDC standard telecom voltage(default53.5VDC). Adopts mature DSP digital control + active PFC topology, full-load PF≥0.99 and conversion efficiency above 91%. Standard drawer hot-swap construction allows online module replacement without shutting down the whole cabinet; built-in communication port links with cabinet monitor for remote parameter configuration and fault reporting, widely used for FTTx OLT, DSLAM and low-capacity 4G/5G micro base station power matching & spare replacement projects.

Key Features

Ultra-wide AC input:85~305VAC(50/60Hz, nominal200~250VAC, rated12A), adapt unstable municipal grid and diesel generator power supply

Adjustable DC output:42~58VDC(default53.5V), nominal30A/1740W, constant power design with automatic derating below 176VAC input

Active full-range PFC, full-load PF≥0.99, low input harmonic distortion, rated efficiency≥91% to cut long-term running power cost

Full front pull-out hot-swap design, realize live maintenance without system power-off, reduce field repair downtime

Intelligent thermostatic variable speed fan, auto speed adjustment based inner temperature, lower idle noise and extend component service life

Complete multi-protection circuit:OVP/UVP/OCP/SCP/OTP + AC input lightning surge protection, hardware OVP lock protection for output overvoltage

Digital communication matching NetSure monitoring unit, realize real-time data upload and remote fault alarm

Wide operating range:-40℃~+75℃, stable full-power output between -20℃~+45℃, derating above +45℃

Technical Specifications

Applications

PS48 Series Telecom Cabinet Matching FTTx OLT Embedded DC Power Supply

Indoor Mini 4G/5G Micro Small Cell Backup Rectifier Module

DSLAM Fiber Access Network Cabinet Spare Part Replacement

Compact Indoor Unmanned Communication Cabinet Power Upgrade

Small Edge Data Room Auxiliary Uninterrupted DC Power Source

Old NetSure PS48 Cabinet Capacity Expansion Renovation

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.

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 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 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.