Product Overview
The Vertiv R48-2000E & R48-2000E3 (Former Emerson eSure Series) are high-density high-efficiency digital-controlled hot-swap rectifiers developed exclusively for Vertiv NetSure embedded telecom power systems. Rated 2000W/41.7A@default53.5VDC, they convert 85~300VAC wide-range alternating current into adjustable 42~58VDC standard telecom voltage. Adopts advanced soft-switch + full DSP digital control and active PFC technology, peak conversion efficiency reaches 96.5%, full-load power factor ≥0.99 and low input THD＜5%. Standard drawer hot-swap plug structure supports live module replacement without cabinet power-off; built-in CAN bus realizes real-time data communication with shelf monitoring unit for remote parameter setup and fault alert. The two models are fully interchangeable, widely applied in indoor/outdoor 4G/5G micro base station and pole-mounted FTTx OLT cabinet power matching & old cabinet renovation projects.
Key Features
Ultra-wide AC input:85~300VAC(45~65Hz, nominal200~250VAC), auto power derating below176VAC, suitable for unstable municipal grid and diesel generator power
Adjustable DC output:42~58VDC(default53.5VDC), max41.7A constant power, precise voltage regulation ≤±0.5%
Active full-range PFC design, full-load PF≥0.99, peak efficiency up to96.5%, greatly reduce long-term operating electricity cost
Non-damage hot-swap design with internal soft-start circuit, no voltage fluctuation during plugging, rapid field maintenance without system shutdown
Intelligent thermostatic variable speed fan, auto speed adjustment based inner temperature to lower idle noise and extend fan service life
Comprehensive multi-protection:OVP/UVP/OCP/SCP/OTP plus AC input lightning surge protection for harsh sealed outdoor cabinet environment
CAN bus communication interface for real-time data upload, remote voltage/current configuration via NetSure cabinet controller
Pass CE & CCC certification, working range:-40℃~+65℃, full-power below55℃, max2000m full-load altitude
Technical Specifications
| Item | Details |
| Model | R48-2000E / R48-2000E3 |
| Brand | Vertiv / Former Emerson |
| AC Input | 85~300VAC,45~65Hz,Nominal200~250VAC,Max13A |
| DC Output | Adjustable42~58VDC(Nom53.5V),Max41.7A/2000W |
| Peak Efficiency | Up to96.5% |
| Full Load PF | ≥0.99 |
| Dimension | 41×84.5×252.5mm |
| Net Weight | 1.13kg |
| Cooling | Intelligent Variable Speed Forced Air Cooling |
| Communication | CAN Bus |
| Working Temp | -40℃ ~ +65℃(Derate over55℃) |
| Max Full-power Altitude | ≤2000m |
| Certifications | CE,CCC |
| MOQ | 1 PCS |
| Unit Price | $265/PCS(1~19pcs) |
| Monthly Supply | 1000PCS |
| Packing | PE+Foam+Export Standard Carton |
| Warranty | 12 Months |
Applications
Indoor & Outdoor 4G/5G Micro Small Cell DC Backup Rectifier Module
FTTx OLT & DSLAM Cabinet Embedded DC Power Supply Unit
Pole-mounted Unmanned Outdoor Communication Cabinet Power Upgrade
Old NetSure Power Cabinet Capacity Expansion & Spare Parts Replacement
Off-grid Solar Hybrid Telecom Station PV Matching Power Equipment
Mini Edge Data Center Auxiliary Uninterrupted DC Power
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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