Product Overview
The Eltek Flatpack S 1U 48V 5.4kW Embedded DC Power System is a high‑reliability, compact power solution designed for telecom, mobile base stations, OLT, fiber access, wireless transmission and industrial applications.
Built with high‑efficiency Flatpack S 48/1800 HE rectifier modules and intelligent Smartpack S controller, this 1U 19‑inch rack mount system delivers stable -48V DC output with strong maintainability, flexible configuration and comprehensive protections. It features ultra‑short depth (only 250–262mm), hot‑swappable modules, and complete battery & load distribution, making it the preferred power solution for space‑limited equipment rooms and outdoor cabinets.
Key Features
Ultra‑compact 1U form factorOnly 250–262mm depth, ideal for compact cabinets and embedded scenarios.
High power density up to 5.4kWSupports up to 3× Flatpack S 48/1800 HE rectifiers for high power output.
High‑efficiency HE rectifier technologyLow power consumption, reduced heat generation, lower operating expense.
Smartpack S intelligent monitoringReal‑time data monitoring, Ethernet communication, fault alarm and remote control.
Wide AC input compatibility100–250V AC, 45–66Hz, supports single/three‑phase input.
Stable -48V DC outputUp to 100A output current to satisfy OLT and communication equipment.
Complete distribution designIntegrated battery distribution, load distribution, and LVBD protection.
Flexible configuration optionsMCB / fuse distribution can be customized based on project requirements.
Hot‑swappable rectifier & controllerMaintenance and replacement without shutting down the system.
Wide temperature & high reliabilityStable operation in harsh environments, certified CE, UL, ETSI.
Technical Specifications
| Item | Details |
|---|
| Model | Flatpack S 1U 48V System |
| Part Number | CTOS0201.xxx / CTOS0301.xxx |
| Input Voltage | 100–250V AC |
| Frequency | 45–66Hz |
| Output Voltage | -48V DC |
| Max Output Power | 5.4kW |
| Max Output Current | 40A / 100A |
| Rectifier Module | Flatpack S 48/1800 HE |
| Controller | Smartpack S |
| Form Factor | 1U 19-inch rack mount |
| Dimensions | 482.5 × 44.1 × 250 mm |
| Weight | Approx. 4.5kg |
| Protection | LVBD, OVP, OCP, SCP, OTP |
| Certifications | CE, UL, ETSI |
| Warranty | 12 Months |
Applications
Telecom OLT & fiber access equipment
4G/5G mobile base stations & wireless sites
Fixed-line network & microwave transmission
Data & edge computing equipment rooms
Industrial control & automation systems
Marine, offshore & embedded power supply
Why Choose Us
We are a professional power system manufacturer & solution provider with strong R&D, production and customization capabilities. We support OEM & OBM to help global partners build competitive power supply products.
1. Strong Customization & R&D Capability
We have an experienced technical team focusing on telecommunication power, embedded power and DC power supply systems for many years. We provide customized design services including output power, configuration, interface, function, appearance and logo, to meet different project requirements of telecom operators, integrators and equipment manufacturers.
2. Professional OEM & OBM Service
We support flexible OEM & OBM cooperation. From product design, prototype development, testing certification to mass production, we provide one-stop service to help you build your own brand and product system with stable quality and short development cycle.
3. Strong Production Capacity & Stable Delivery
We have standardized production lines, mature production technology and strict quality control system. With large & stable production capacity, we can ensure fast delivery even for large orders and long-term supply. Our mature supply chain ensures stable material supply and on-time delivery.
4. Strict Quality Control & Reliable Performance
Each product undergoes full load test, aging test, safety test and simulation operation test before leaving the factory. We use high-quality components and strictly follow international standards to ensure long-term stable operation in various environments.
5. Comprehensive After-Sales & Technical Support
We provide a complete pre-sales consultation, in-sales guidance and after-sales support system. Our professional technical team offers rapid response, on-site guidance, remote debugging, maintenance training and spare parts supply, ensuring your system runs safely and reliably throughout its life cycle.
6. Rich Industry Experience & Global Service
We have served customers in communication, data center, industrial, energy and other fields for many years. Our products are exported to many countries and regions, with rich project experience and professional solutions to meet global market demands.
We are committed to becoming your long-term reliable partner of embedded power and telecom power supply systems.
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