Product Overview
The Vertiv R48-3000A3 (Former Emerson eSure Standard Series) is cost-effective full digital AC-DC rectifier module, specially developed to match Vertiv NetSure series embedded telecom power systems. Rated 3000W/50A nominal output(max62.5A peak) at 48VDC, it converts wide-range single-phase 85~300VAC mains into adjustable 42~58VDC standard telecom voltage(default53.5VDC). Adopts mature soft-switch and active PFC technology, full-load PF≥0.99 and nominal conversion efficiency over 95.5%, designed for cost-sensitive conventional telecom sites. Standard drawer hot-swap plug structure enables online replacement without shutting down the whole cabinet; built-in CAN bus communicates with shelf master controller for remote parameter configuration and fault warning, widely used for FTTx OLT, DSLAM cabinet and indoor/outdoor 4G/5G micro base station power upgrade & spare replacement projects.
Key Features
Ultra-wide AC input:85~300VAC(45~65Hz, nominal200~250VAC), perfectly adapt unstable rural grid and diesel generator power supply
Adjustable DC output:42~58VDC(default53.5V), max62.5A constant power, accurate voltage regulation ≤±0.1V via cabinet monitor
Active PFC design, full-load PF≥0.99, input THD≤5%, reduce grid reactive power loss and operating expense
Full hot-swap plug-and-play construction, front pull-out handle for quick maintenance without system power off
Intelligent thermostatic variable speed fan, auto adjust rotating speed by internal temperature to cut idle noise and extend service life
Comprehensive multi-protection:OVP/UVP/OCP/SCP/OTP + AC input lightning surge protection for sealed outdoor pole cabinet
CAN bus communication interface for real-time data upload, remote alarm and parameter setting with NetSure monitoring unit
Pass CE, ISO certification, stable running from -33℃~+55℃, max3000m full-power operating altitude
Technical Specifications
| Item | Details |
| Model | R48-3000A3 |
| Brand | Vertiv / Former Emerson |
| AC Input | 85~300VAC,45~65Hz,Nominal200~250VAC,Max22A |
| DC Output | Adjustable42~58VDC(Nom53.5V),Nom50A/Max62.5A/3000W |
| Rated Efficiency | ≥95.5% |
| Full Load PF | ≥0.99 |
| Dimension | 45×85×330mm |
| Net Weight | ＜2kg |
| Cooling | Intelligent Variable Speed Forced Air Cooling |
| Communication | CAN Bus |
| Working Temp | -33℃ ~ +55℃(Derate above45℃) |
| Storage Temp | -40℃ ~ +70℃ |
| Max Full-power Altitude | ≤3000m |
| Certifications | CE,ISO |
| MOQ | 1 PCS |
| Unit Price | $123.07/PCS(2~9pcs) |
| Monthly Supply | ≥1000PCS |
| Packing | PE Bag+Foam+Export Standard Carton |
| Warranty | 12 Months |
Applications
Indoor & Outdoor 4G/5G Micro Small Cell DC Backup Power Supply
FTTx OLT & DSLAM Cabinet Embedded Rectifier Replacement
Pole-mounted Unmanned Outdoor Communication Cabinet Power Retrofit
Old NetSure Power Cabinet Capacity Expansion Project
Mini Edge Data Room Auxiliary DC Power Source
Conventional Fixed Telecom Station Power 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.
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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, 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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