Categories
Contact
- ContactsMr. Luo
- Phone+86 13714076096
Mail Us




ETP4890-B3A1-1 48V 90A Telecom DC Power Supply | 401-500W Embedded Rectifier System
Place of Origin: Shenzhen, China
Brand: Synergic
Model: ETP4890-B3A1-1
Unit Price: $399.00 / set (2-9 sets)
MOQ: 2 sets
Packaging: Cartons or Wooden Frame
Supply Ability: 1500 sets per month
Loading Port: Shenzhen
Specifications
| Category | Item | Details |
|---|---|---|
| Basic Info | Product Type | Embedded Telecom DC Power Supply / Rectifier Module |
| Model | ETP4890-B3A1-1 | |
| Output Type | Single | |
| AC Input | Rated Voltage | 200 ~ 240 VAC |
| Working Voltage Range | 85 ~ 300 VAC | |
| Input Frequency | 45 ~ 66Hz (Nominal 50/60Hz) | |
| Power Factor | ≥ 0.99 (Rated Load) | |
| DC Output | Nominal Voltage | 48V DC (Adjustable: 42 ~ 58V DC, Default 53.5V DC) |
| Rated Output Current | 90A | |
| Output Power | 401 ~ 500W | |
| Voltage Regulation Accuracy | ≤ ±1% | |
| Output Ripple | ≤ 200mVpp | |
| Matching Parts | Compatible Rectifier | R4830G1 / R4830N2 (Max 3 units) |
| Monitoring Unit | SMU01C | |
| Physical & Structure | System Height | 3U |
| Dimension (W×D×H) | 482.6 × 330 × 219.5mm | |
| Weight (With Modules) | ≤ 13kg | |
| Protection Grade | IP20 | |
| Cooling Mode | Natural Cooling (Fanless) | |
| Installation | 19-inch Standard Rack | |
| Maintenance Mode | Front Maintenance | |
| Environment | Operating Temperature | -40℃ ~ +65℃ |
| Storage Temperature | -40℃ ~ +70℃ | |
| Relative Humidity | 5% ~ 95% (Non-condensing) | |
| Max Working Altitude | 4000m (Derate 1℃ per 200m above 2000m) | |
| Certification | Qualification | CE, RoHS, ISO |
ETP4890-B3A1-1 48V 90A Telecom DC Power Supplya
Product Description
Introduction
The ETP4890-B3A1-1 is a high-performance embedded telecom DC power supply, designed for communication equipment and power distribution scenarios. It adopts 200-240V single-phase AC input and converts it into stable 48V DC output, with a rated current of 90W and output power ranging from 401W to 500W. This standard 3U subrack power system is equipped with matched rectifier modules and SMU monitoring unit, featuring ultra-wide voltage adaptation, high power factor and natural heat dissipation. It supports hot-swap modules, remote monitoring and multi-level safety protection, and is compact in structure with front maintenance design. It is widely used in telecom base stations, indoor machine rooms, FTTX access networks and other fields, serving as a reliable basic power device for various communication equipment.
Key Features
Stable Power Output: Standard 48V DC single output, rated 90A current, power range 401-500W, steady voltage with low ripple to avoid signal interference.
Wide Grid Adaptation: 200-240V AC input, 45-66Hz frequency, 85-300V ultra-wide working voltage range, stable operation under unstable power grids.
High Power Factor: Power factor up to 0.99 under rated load, low reactive power loss and excellent energy-saving performance.
Natural Heat Dissipation: Fanless design reduces failure points and operating noise, suitable for 24-hour uninterrupted long-term operation.
Hot-Swap Modular Design: Rectifier and monitoring modules support hot plugging. No shutdown required for replacement, greatly simplifying on-site maintenance.
Intelligent Monitoring System: Equipped with dedicated SMU monitoring unit, supporting remote data viewing, fault alarm and centralized management.
Complete Protection Mechanism: Integrated overvoltage, overcurrent, short-circuit and over-temperature protection, plus lightning protection to safeguard equipment safety.
Rugged Environmental Adaptability: Works stably from -40℃ to +65℃, storage temperature -40℃ to +70℃, normal operation below 4000m altitude.
Standard Structure: 3U rack-mounted design, 19-inch cabinet compatible, front maintenance and reasonable cabling for easy installation.
Applications
Mobile communication base stations and remote cell sites
Indoor telecom machine rooms and transmission equipment rooms
FTTX fiber-optic broadband access systems
Small and medium-sized embedded DC power distribution projects
Industrial equipment and backup power supply systems
Specifications
Why Choose This Model?
Cost-effective Performance: 90A large current output meets medium-load power demands, ideal for small and medium telecom projects.
Strong Grid Compatibility: Ultra-wide input voltage adapts to complex power supply environments in different regions.
Low Failure Rate: Fanless natural cooling reduces daily maintenance work and improves operational stability.
Easy O&M: Hot-swap modules and front maintenance design save time for equipment replacement and inspection.
Full Protection: Multi-layer safety and lightning protection ensure stable operation in harsh indoor and outdoor scenarios.
Remote Manageable: Built-in monitoring unit supports unattended management for multiple sites.
Company Profile
Shenzhen Synergic Technology Co., Ltd., founded in 2024, focuses on the production, manufacturing, R&D, and sales of power related products, including telecom power systems, energy storage batteries, and solar power solutions. We are committed to delivering comprehensive, end-to-end power solutions for our customers.
Our team members primarily come from leading companies in the power supply industry, bringing years of hands-on experience. We supply network energy equipment including telecom power systems, precision distribution cabinets and integrated cabinets (customization available) from ELTEK, Huawei, Vertiv (formerly Emerson), ZTE and CE+T. Our product range also covers UPS, precision air conditioners, batteries and other data room accessories from well-known brands.
All products are strictly tested before delivery. We offer reliable after-sales service and instant spare parts support within warranty to cut your time and costs. Custom OEM/ODM services are also available.
For pricing, configuration options and OEM customization, please contact us for detailed technical support and quotation.
WhatsApp: +86 13714076096
Email: 3795149443@qq.com
Website: https://www.synergicsys.com
Shenzhen Synergic Technology Co., Ltd.
We are a professional supplier focusing on the R&D, sales and export of communication power supplies and data center peripheral products. Our product portfolio covers mainstream brands including Vertiv (Emerson), Huawei, Eltek, ZTE and Delta, involving embedded power systems, rectifier modules, monitoring units, power distribution cabinets, UPS and supporting storage batteries. We also provide customized cabinet and OEM services to meet personalized project demands.
All products undergo strict performance test, aging test and full-load test before delivery to ensure reliable quality. We offer comprehensive after-sales support and sufficient spare parts within the warranty period, helping customers cut maintenance time and costs. Our products are exported to Southeast Asia, Africa, the Middle East, Europe, South Asia and other regions, and have won wide recognition from global distributors and engineering clients.
FAQ
Q: What is the output current and power of this power supply?
A: The rated output current is 90A, and the output power ranges from 401W to 500W.
Q: What AC voltage does it support?
A: The rated input is 200-240V AC, with an ultra-wide working range of 85-300V AC.
Q: Which rectifier and monitoring modules are compatible?
A: It matches R4830G1/R4830N2 rectifier modules (max 3 units) and SMU01C monitoring unit.
Q: What cooling method does it adopt?
A: It uses fanless natural cooling, featuring low noise and low failure rate.
Q: Does it support hot swap?
A: Yes, both rectifier and monitoring modules support hot swap for maintenance without powering off.
Q: What is the working temperature range?
A: The operating temperature is -40℃ to +65℃, and it can work normally at an altitude up to 4000m.
Q: Can you provide sample and customization services?
A: Yes, we support sample testing, logo and packaging customization according to requirements.

