19" 5u Subrack 220V AC to 48V DC Rectifier System Switch Mode Power
Supply for Telecom
1. 48V DC Rectifier System Product Overview
48V DC Rectifier System supply 5U height compact design to meet
critic
alapplication needs of fiber and microwave transmission, access
device,
switch. The system maximum power is 300A, with AC/battery/load
MCBs.
The cables are front accessing with MCB and busbar
- Standard 19-inch width which has the advantage of wide use
- 5U height compact design, space and installation cost can be saved
- Front operation and cable accessing, good-looking and safe
maintenance
- Perfect battery management, prolongs the life of the battery well
provide,various communication ports, RS485, internet port, dry
contacts, etc.which enables flexible networking and remote
monitoring
- Rectifier and controller are hot pluggable, easy and quick on-line
maintenance
- Wide input voltage range(85-300Vac) the power grid is adaptable
2. ET48300-005 consists of distribution unit, rectifier module,
conversion module, monitoring module.
The standard as table below:
| Configuration | Rectifier module | Remark |
| Standard | GB 4943 | For details, please refer to the specifications of modules |
| Standard | IEC/EN 62368-1 |
| Standard | EN 55032 Class A,GR1089 Issue 4 ,R3-10, R3-11, R3-12 Class B
certified by North America |
| Standard | EN300386,CLASSA |
3. 48V DC Rectifier System Quick Details:
| Place of Origin: Shenzhen, China (Mainland) | Input Voltage: AC220V or DC48V |
| Brand Name: ESTEL | Output Voltage: AC220V or DC48V |
| Model Number: ET48300-005 | Rectifier Module Output Power: 30KW |
| Product Name: Industrial Power Supplies | Input Frequency 45~65Hz |
| Certification: ISO9001, CE, 3C, FCC, TLC | Max. Rectifier Module Output Current: 50A |
| Application: Industrial Equipment | Power Factor: >0.99 |
Product Feature
1) The rectifier module adopts active power factor compensation
technology, and the power factor value reaches 0.99.
2) The normal working range of AC input voltage is wide to 90～290V,
Single Phase, (323V~480V ac, 3 Phase).
3) The rectifier module adopts full-bridge soft-switching
technology, and the efficiency is up to 96%.
4) Smart battery management. There are load power-off and battery
low-voltage protection (LVLD+LVBD) and secondary power-off
(secondary power switch) functions, which can realize functions
such as temperature compensation, automatic equalization and
floating charge control, automatic voltage regulation, battery
capacity calculation, and online battery testing.
5) The rectifier module adopts non-damage hot-swappable technology,
plug and play, and the replacement time is less than 1min.
6) Networked design, providing multiple communication interfaces
(such as RS485, dry contact), flexible networking, real-limited
local and remote monitoring, unattended.
7) Lightning protection design for AC and DC sides, suitable for
thunderstorm areas.
8) Support fault protection and fault alarm functions.
9) Friendly operation and maintenance can be installed against the
wall, effectively saving space.
10) Ultra low radiation. Adopt advanced electromagnetic
compatibility design.
4. System Logic Configuration
A Rectifier system converts alternating current (AC) to direct
current (DC) and provides the power necessary to charge batteries.
With a focus on continuously improving the total cost of ownership,
ESTEL’s rectifiers, combined with advanced control and monitoring
features, help to reduce both capital and operational expenditure.
Our rectifier systems boast excellent power density while
fulfilling space and weight requirements. They leave plenty of room
for other equipment and create savings in packaging and
transportation costs. In addition, their high efficiency lowers
total energy consumption and reduces carbon footprint.
The embedded communication power supply system (Rectifier System)
is suitable for small program-controlled switches, access networks,
transmission equipment, mobile communications, satellite
communications ground stations, microwave communications power
supply, and can also be used for power supply for other
communications equipment. Under normal circumstances, various
parameters of the rectifier module and power distribution unit are
controlled by the monitoring module, and work according to their
predetermined parameters or user commands. If the mains fails, the
system will be powered by the battery at this time. As the battery
discharges, the battery terminal voltage begins to drop. When the
battery voltage is lower than the 46V dc (Alarm Value can be
settable) battery low-voltage alarm point from monitor, the
monitoring module reports an alarm. Signal, directly close the load
output, the whole machine does not work. When the external mains
power is restored, the system resumes normal operation.
5. Rectifier system pictures:
Front Panel:
Back Panel:
19 inch mounted on the cabinet
Packaging Pictures:
