6U height Power Supplies System ET4830000W Telecom Rectifier System
ET48-30KW consists of two modules:
Rectifier module (MR483000MG1)
Photovoltaic module
Battery breakers : 9×125A/1P
Load breakers
2x 100A + 1x 63A ( LVBD )
2x 100A + 2x 63A ( LVLD )
- ET48-30KW System Configuration Description
ET48-30KW sub-rack power supply, 6U height compact design to meet
critical application needs of fiber and microwave transmission, access
device, switch. The system maximum power is 60KW, with AC/battery/load
MCBs. The cables are front accessing with MCB and busbar.
l Standard 19-inch width which has the advantage of wide use
l 6U height compact design, space and installation cost can be saved
l Front operation and cable accessing, good-looking and safe maintenance
l 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
l Rectifier and controller are hot pluggable, easy and quick on-line
maintenance
l Wide input voltage range(85-300Vac) the power grid is adaptable
ET48-60KW consists of distribution unit, rectifier module, conversion module, monitoring module. The configuration is optional, 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 |
| Place of Origin: Shenzhen, China (Mainland) | Input Voltage: AC220V or DC48V |
| Brand Name: ESTEL | Output Voltage: AC220V or DC48V |
| Model Number: ET48-30KW | 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 |
(1) AC input: Startup rectifier module after AC powered-on, outputs -48Vdc, at the same time charge the battery and power the conversion module, conversion module outputs 220Vac.
Under normal conditions, the parameters of rectifier module and distribution unit are all under controll of the monitoring module, operating according to the preset parameters or user’s commands. If AC mains fault, the battery will power to the system, and continue outputing - 48 VDC and 220 vac, with the discharge of the battery, the voltage of the battery starts to descend, when the voltage is under 43.2 V + / - 0.5 V, the monitoring module send battery under-voltage signal and close the load output directly, then the power system will stop working. When external AC mains recovers, the system will normally work again. (All above monitoring data are system default values and can be reset by user)
(2) -48V input: No AC current or no AC be connected, access external power -48V to -48V load port, startup monitoring and conversion module, 220Vac output.
Temperature compensation function is on by default, which can be activated or forbiddened by user’s command if necessary. Operation temperature ≥55℃, the power output of the power supply will be linearly reduced (@65℃,output power will be 1300W).
Pictures
Rectifier Module dimension as below:
| Insulation rating |
| parameter | Standard | Remark |
| Insulating strength(AC input) | Input-Output:3500Vdc/10mA//1min | No flashover or breakdown. Remove discharge tube/surge protection device before testing, no rectifier module or monitoring module. Output with 2 routes low-voltage terminal, high-voltage with AC bypass function, not to be tested. |
| Input-enclosure:3500Vdc/10mA//1min |
| Output-enclosure:750Vdc/10mA//1min |
| Insulating strength(DC input) | Input-Output:750Vdc/10mA//1min |
| Input-enclosure:750Vdc/10mA//1min |
| Output-enclosure:750Vdc/10mA//1min |
| Leakage current | ≤3.5mA | 280Vac input,output full-load |
| Insulation resistance | @ Normal atmosphere, relative humidity of 90%, Test voltage of DC 500V,the insulation resistance of input-output, input-ground, output-ground shall not be less than 10MΩ. Output with 2 routes low-voltage terminal, high-voltage with AC bypass function, not to be tested. |
| Environment |
| Parameter | Min. | Typ. | Max. | Unit | Remark |
| Operation temperature range | -5 | 25 | +55 | °C | |
| Storage temperature | -40 | | +70 | °C | |
| Relative humidity | 5 | | 95 | % | Long-term operating, no condensing |
| Atmosphere pressure | 70 | | 106 | KPa | |
| Altitude | 0 | | 3000 | m | |
| Cooling | Forced cooling, front-in & rear-out; the fan locates in front panel, with temperature controlled speed. |
| Water & dust proofing level | The power supply shall work properly under the following condition: Density of dust diameter above 55µm≤3*104 granule/m3. The dust granule is non-conductive, non-electromagnetic, non-corrosive, without water-proof function. |
7. Application
(1) Integration access
(2) Indoor distribution and extension system
(3) Mobile station and extension coverage system
(4) WLAN
(5) Satellite communication ground station and microwave communication station
(6) Weak current distribution room
(7) Other AC/DC uninterruptible power system
8. Features
(1) Two outputs:-48Vdc, 220Vac
(2) Two inputs:-48Vdc, 220Vac
(3) Adoption of active power factor compensation technology, power factor >0.99
(4) Wide operating range of AC input voltage: 90~280Vac
(5) Wide operating temperature range:-5℃~+55℃
(6) Switch technology conducted,
(7) Perfect battery management prolongs battery lifetime: charge /discharge management, battery temperature compensation, low-voltage protection.
(8) Hot-swappable
(9) Input over/under voltage protection
(10) Output over-voltage protection, output over-current protection, output short-circuit protection
(11) Embedded / wall mounted
(12) RS485, RS232 communication interface
9. Packing and Shipping
Our Delivery
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6U Height Power Supply System ET4830000W Telecom Rectifier System Images
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