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Posted (edited)

Hi solar gurus ,  I have two strings of Junko 460w  , 5  panels in series in each string.

Do I need external steering diodes to combine the two string to one PV input for the inverter.? I need to test the combined strength over the weekend , and can only lay my hands on diodes by Monday. Is there already  diode blocking inherent in the panels ? 

 

At the moment I have 32 amp individual fuses for each string , plus  transient suppression .

Edited by BritishRacingGreen
Correction
Posted
On 2022/05/14 at 12:48 PM, BritishRacingGreen said:

Hi solar gurus ,  I have two strings of Junko 460w  , 5  panels in series in each string.

Do I need external steering diodes to combine the two string to one PV input for the inverter.? I need to test the combined strength over the weekend , and can only lay my hands on diodes by Monday. Is there already  diode blocking inherent in the panels ? 

 

At the moment I have 32 amp individual fuses for each string , plus  transient suppression .

Check panel datasheet. Mostly all panels have diodes fitted inside.

 

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