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Canadian Solar 320W PV Module 120 cell CS3K-320MS

price as of May 31
Solar Loan from 6.99%
All Canadian Solar products All 320 Watt Panels



Rated Power Output 320 W
Voltage (VOC)37.7 М
Cell number
  • 120 cell
Cell TypeMonocrystalline
Rated Efficiency19.26%
Connector TypeMC4 or MC4 comparable
Backsheet Color
  • black
Frame Color
  • black
Dimensions LxWxH65.9" x 39.1" x 1.38"
Weight40.8 lbs
ManufacturerCanadian Solar
Manufacturer Part #CS3K-320MS
Operating Temperatures -40 °F to +185 °F
Scope of Application
  • Solar Panels for Boats
  • Solar Panels for Commercial
  • Solar Panels for Home
  • Solar Panels for RV
  • Grid-Tie
  • Off-Grid
Warranty10/25 years see manufacturer

About product

Canadian Solar's KuPower CS3K 320W solar panels are 120 monocrystalline PERC half cells modules. Ku CS3K 320W module features efficiency of up to 19.26% and shows excellent performance in low irradiance conditions such as early morning, evenings and overcast conditions. The anodized aluminum frame comes in black color and the back sheet comes in white for a striking aesthetics of the Canadian Solar 320w module.

Main Features:

  • High module efficiency up to 19.26%
  • Low power loss in cell connection
  • Low power loss in cell connection
  • Better shading tolerance
  • More power output thanks to low NMOT (Nominal Module Operating Temperature): 43 ± 3°C

High efficiency helps to save space

Canadian Solar 320 watt panel efficiency reaches 19.26%. High conversion rate helps homeowners to save roof space when building a powerful system.

Great performance in any weather conditions

Canadian Solar 320 watt panels are famous for doing extremely well on cloudy days. The panels have a low temperature coefficient (Pmax): -0.37%/°C, which shows they have lose little power at high temperatures as well

Reliable and long-longlasting

The module is made to withstand 6000 Pa snow loads and 4000 Pa wind load, according to the Canadian Solar 320 spec sheet. Shingle cell design lowers risk of microcracks

Comes with solid warranties

Canadian Solar panels are UL1703 certified, CEC Listed and are fully complying to IEC, TUV, UL testing standards. Canadian CS3K panels come with a 25-year linear power output warranty and a 10-year product warranty on materials and workmanship. 

Canadian Solar, 320W PV Module, PV Wire, T-4-MC-4 comparable, 35mm Black Frame on White Backsheet, BoW, 120 ½ Cells, 5BB Mono-PERC, 20A Fuse, 1000VDC, 298.1 PTC, CS3K-320MS

Reviews & Questions

  • Reviews (5)
  • Questions (0)
It was a good value for the money for me. The panels are much cheaper than some of the same Tier competitors' modules but much more efficient.
06/17/2020 08:34 pm
I am satisfied with my purchase. The solar panels are efficient, durable, and very easy to clean.
06/08/2020 02:11 pm
Excellent solar modules at a great price. They are very efficient and very durable.
05/02/2020 06:30 pm
These panels exceeded my expectations on cloudy days. It seems they try to make electricity with any amount of sunlight. I am very impressed with their performance.
04/30/2020 01:16 pm
Canadian Solar is one of the best solar manufactures and that is why I choose their panels. So far they are performing very well and cause no problems at all.
04/06/2020 07:09 am

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