Product Overview
The Vertiv R48-3000E3 (Former Emerson eSure series) is high-density digital controlled AC-DC rectifier module designed for global NetSure embedded telecom power cabinets. Rated 3000W/62.5A@48VDC, it converts wide-range single-phase AC into adjustable 42~58VDC standard communication voltage, perfectly hot-plug compatible with all Vertiv NetSure series power shelves without cabinet reconstruction. Adopts DSP full digital control + active PFC circuit, peak conversion efficiency reaches 95.5%, ultra-high power factor ≥0.99, low harmonic THD≤5%. Supports intelligent parallel current sharing and load-adaptive energy-saving sleep mode, widely deployed in indoor/outdoor 4G/5G small cell, FTTx OLT pole cabinet and old telecom power capacity upgrade projects.
Key Features
Ultra-wide AC input:85~290VAC,45~65Hz, stable operation under unstable municipal power and diesel generator supply
Adjustable DC output:42~58VDC(default53.5VDC), max continuous 62.5A, constant power output characteristic
Active PFC design, full-load PF≥0.99, THD≤5%, peak efficiency up to 95.5%, reduce long-term power consumption
Standard drawer hot-swap structure, replace module under live cabinet without system power-off, maintenance within 1 minute
Intelligent variable speed cooling fan, auto adjust rotating speed based inner temperature to cut idle noise and extend lifespan
Built-in CAN bus communication interface, real-time data interaction with cabinet monitor for remote parameter setup & fault alarm
Multi-layer full protection:OVP/UVP/OCP/SCP/OTP + AC input lightning surge protection for harsh outdoor cabinet environment
Full power output below +45℃, gradual power derating above ambient 45℃, stable for high-temp sealed pole cabinet
Technical Specifications
| Item | Details |
| Model | R48-3000E3 (eSure Series) |
| Brand | Vertiv / Former Emerson |
| AC Input | 85~290VAC,45~65Hz,Nominal 200~250VAC |
| Rated DC | 42~58VDC(Default53.5VDC), Max62.5A |
| Rated Power | 3000W |
| Peak Efficiency | Up to 95.5% |
| Power Factor | ≥0.99 |
| Dimension | 45×85×335mm |
| Net Weight | 2kg |
| Cooling | Intelligent Thermostatic Forced Air Cooling |
| Working Temp | -40℃ ~ +70℃ |
| Storage Temp | -40℃ ~ +75℃ |
| MOQ | 1 PCS |
| Unit Price | $110/PCS (1~9pcs) |
| Monthly Supply | ≥1200PCS |
| Packing | Standard Export Carton |
| Delivery Time | 1~2 Weeks |
| Warranty | 12 Months |
Applications
Indoor & Outdoor 4G/5G Macro/Micro Small Cell DC Backup Power
FTTx OLT & DSLAM Fiber Access Cabinet Embedded Rectifier
Pole-mounted Unmanned Outdoor Communication Cabinet Power Supply
Mini Edge Data Center Auxiliary DC Power System
Old NetSure Cabinet Capacity Expansion & Component Replacement Project
Off-grid Solar Hybrid Telecom Station PV Matching Power Module
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.
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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.
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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.
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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.
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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.
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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.
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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.
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