Answer:

The SSO operates in the range of 100-720V Vmpp, and we always recommend staying within that range in a string of solar panels. Note that the maximum Vmpp becomes slightly lower if the panel exceeds 12.5 A Impp (absolute maximum is 14 A). This generally does not affect the number of panels, as a higher current usually means a lower voltage.

To calculate how many panels can be connected to an SSO, you can follow the process below.

For more precise calculations, we have developed an SSO calculator. It is available for download on our website here. A guide on how to use the SSO calculator can be found here. Note: If it concerns bifacial or glass/glass panels, please contact Ferroamp's design department for assistance.

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