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SUN2000 Series-28KTL


The maximum efficiency of SUN2000-28KTL is up to 98.7% with “T” type three level topology. It supports 3 MPPT for versatile adaption to different module types or quantities built up with different alignments. It adopts natural cooling technology without external fan to increase reliability and save maintenance. The output voltage is 480V, which reduces AC cable power loss up to 30%.

SUN2000-28KTL string inverter is the best solution for large scale PV plant.

SUN2000-28KTL meets Germany BDEW MV directive and VDE1206-1-1 directive, CE Low Voltage Directive and the Directive for Electromagnetic Compatibility, as well as China Golden Sun certification. It has good environment adaptability especially for the large scale medium voltage PV plant with IP65 and fanless design.

Higher Yields

  • Maximum efficiency 98.7%
  • European efficiency 98.4%
  • Reduce 30% AC cable loss with higher output voltage of 480V
  • Saving AC cable investment up to 20% without N-Line

High Reliability

  • With 20 years technology accumulation in telecom power, the same platform building inverter product
  • No need of external fan with natural cooling technology
  • Type II DC and Type III AC surge protection devices integrated
  • Warranty up to 25 years


  • Maximum of 3 MPPT for versatile adaption to different module types or quantities built up with different alignments
  • Up to 6 strings intelligent monitoring and fault detection
  • Local graphic LCD and remote monitoring
  • RS 485 and USB ports for connectivity and data management


  • 48kg@27.5kW, compact design of 0.08m3
  • Easy connection with external waterproof DC / AC and signal terminals
  • Noise ≤ 29dB
  • Outdoor application of IP65

Efficiency Curve

Circuit Diagram

Technical Specifications

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Solar PPM Company Limited
Head Office : 205/1 Nakhonratchasima Road
Dusit Bangkok 10300

Factory : 22/5 Moo 10 Nongkham Sub-district 
Sriracha District , Chonburi 20230 , Thailand 

Head Office

Tel : 02 628 6100 Ext. 741,814
Fax : 02 628 6122

Factory Chonburi

Tel : 090 197 5968 HR K.Noon

Time : Monday - Friday (8.00 am. - 17.00 pm.)
E-mail : ,
Website :