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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: SETEC
  • Model Number: 48V/20A DC power system
  • Output Power: 1000W
  • Output Type: Dual
  • Input Voltage: 85v-290v
  • Output Voltage: 48v(42v-59v)
  • Type: AC DC power supply
  • Output Current: 20A
  • color: black
  • application for: battery charging
  • modules: 2 modules
  • contact person: Robert
  • skype: dcacinverter
  • telephone: 0086 133 9287 6205

Packaging & Delivery

Packaging Details Conventional packaging or follow the customers' requirement
Delivery Time 3 days after order confirmed


1:48v/20A DC power rectifier system
2;with one monitor
3: power rectifier system
4:Apply for telecom device
5: warrany 2Year


48V 20A DC 1000W power rectifier system


1.Power rectifier system introduction :

 AC DC rectifier system is consisted by one rectifier module or multiple rectifier modules and monitor modules. The power of rectifier systems can be different by different quantity rectifier modules.

 This rectifier system converters high voltage AC to DC24V or DC48V use for special DC equipment load. High efficiency>96%.



Remark:Some rectifier system need rectifier modules,monitor and distribution;some system only need rectifier modules.AC-DC rectifier system can supply DC power for DC load and charging for battery at the same time.



2.Product Features:

1. Circuit of the Rectifier modules have two parts,one is PFC adjust; the other is DC/DC transformation.All technically m ake the wide input voltage range (85V-290V).

2. High efficiency.rectifier modules used soft switch technology,while load rate10% then efficiency can be  91%,50% load rate the efficiency can be above 96%                

3. With step less current limiter technology,output current is continuously adjustable.

4. Adopted step less temperature control speed,it can reduce power consumption and prolong the life of the fan.

5. Sharing Load, Equalized-current imbalance ≤ 3%

6. Optional Ethernet interface through SNMP and/or TCP/IP

7. Controller MCU

8. Digital signal collection via internal RS485 bus; RS232 interface for remote operation

9. 2U height, light weight, High power density.






Input voltage (AC)


Input voltage (AC)

                   48V (42V-59V Continuously adjustable)

Output current (A)




Max. power (W)




Operating temperature

-25°C ~ 65°C


3.Picture of product:


4.The detailed introduction:


5.Monitoring module:

 monitoring module monitors the working status of each rectifier module,has functions of collecting,displaying and setting the operation parameters of the system.it can also communicate with an external computer and form a loacl or remote centralized monitoring system.


Monitoring content:

•LCD display

•Through the system menu set the relevant parameters

•Alarm and recording function

picture of  monitoring module:

6.Distribution unit:

 •shunt load with short-circuit and overcurrent protection,shunt capacity can be adjusted according to user requirement.

•battery input should connect with an external fuse protector.

•power off auto/manual,load off on/off control switch,etc.

•battery current, the total load current can be detected

•al dc outputs have fault detection function

•LVDS2 function to protect load and battery

•capacity of MCB in each channel is 50A

7.48V or 24V rectifier module:

•when load rate is 10%,efficiency can reach 91%;when load rate is 50%,efficiency can reach above 96%.

•stepless current limiting technology , output current is continuously adjustable.

•adopt  stepless temperature control automatic speed adjustment, reduce power consumption and extend the life of the fan.

•sharing load, equalized-current imbalance ≤3%.

•2U height,light weight,high power dencity.

rectifier module picture:


8.product detailed picture :



9. the whole system test:


 10.About us:

 Established in 2004,ShenZhen SETEC POWER Co.,Ltd.is one of the leading manufacturer in China specializing in designing,researching,developing,producing and selling high- frequency switching power supply,DC/AC power inverters, DC/DC converter, Solar inverter, solar pump inverter,on grid inverters and so on.we provide advanced technology and outstanding quality products.Our customers are operators of domestic telecommunications industry and power industry,broadcast industry,and related ancillary equipment manufacturers,Our company provides not only high-frequency switching power supply equipment for large telecom operators,but also power supplies for the relevant supporting manufactures.SETEC devotes ourselves to the national industry development and introduces the advanced technology and management experience from world-renowned enterpeises to build our own high-tech enterprice.


Contact person: Robert


Mobile phone:+0086 133 9287 6205


SKYPE: dcacinverter


Trademanager: cn1000241448




Address: #199, SETEC Industrial Park, Dakan, Xili Town, Nanshan District, Shenzhen ,China    Zipcode:518055

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