276w Buck Power Converter

276w Buck Power Converter

Picture Measure Protection Over-current protection ,Over-voltage protection ,Over-load protection ,Overheat protection ,Lower voltage protection ,Intrusion protection ,Short- circuit protection Application Bus ,CMB, large trucks, motor car,solar power, bus display, taxi advertising screen,...

Product Details

Waterproof Aluminum Made DC48V to DC13.8V 20A 276W Buck Power Converter

          Our products are widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields.

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Product Description


1. 100% full power & stable current output

2. 100% Imported components

3. Wide input voltage from 35-60Vdc

4. 100% waterproof & anti-shock protection, Ultra compact size, light weight

5. Industry grade DC48V to DC13.8V step-down converter, efficiency up to 94%

6. Certificates: CE/RoHS

7. Waterproof level: IP68

8. Die-cast aluminum shell, epoxy potting, Cooling by free air convection,

9. Protections: Over-current, Over-voltage, Over-temperature, Over-load and

Short-circuit, Auto-recovery when device is back to normal operating

10. Non-Isolated Module

11. 1 year warranty, lifetime up to 100,000 hours.




Input rated voltage

48V DC

Input voltage range

35-60V DC


96% (half load) ; 94% (full load)

Output voltage

13.8V DC

Output current

20 Amps

Output rated power

276 Watts

Output peak power


Voltage regulation

< 1%

Load regulation

< 2%

Ripple (full load test)

< 50mV

No-load current

< 25mA

Working Temperature

-40°c ~ +80°c

Waterproof rating

IP 68


Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage

Machine size


Package size


N. Weight


W. Weight


Cooling way

Free air convection




 10A dc power converter


Company Information.png

Company Information



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Contact us






1Q.May I take some samples to test before placing the order?

  A:Yes, but customers need to pay for the sample fees and express fees.


2Q:Do you have own factory?

  A:SINO-K is a hi-tech manufacturer integrating professional R&D, production and sales in three field of Medical device,Electronics energy and Software development.We have a 1,600 square meters trial production workshop in Shenzhen city(First-Tier) and a 6,900 square meters production base in Maoming city(Second-Tier), a number of modernization production workshop,with advanced production testing device.We also have office.


3Q:Can we use own brand,not Sino-k?

  A:Of course you can.SINO-K can offer you professional OEM/ODM solutions.


4Q:Can we ask for a subscription? If there is no suitable specification?

  A: If can not find a suitable model, our technical engineers will be based on your actual needs,corresponding to the rapid power solutions.Then adjust the corresponding according the actual situation.             


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We offer as many shipping options as possible, including DHL, UPS, TNT, Fedex,EMS,etc.


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