Jump to content

what voltage DC surge protector to use on a Sunsynk mppt string


Tariq
 Share

Recommended Posts

1 hour ago, Tariq said:

i have access to a 1000 volt spd, will that work or is it like a circuit breaker that protects the wire, the current rating is less than the wire current carrying capacity

To my knowledge the 1000V SPD will discharge any voltage bigger than 1000V the closer you can get to your mppt voltage of 500V the better. 600VDC SPD’s would probably be better than 1000VDC but if you already have 1000V you might as well just go with them. These SPD’s are normally rated 20 to 40KA so they can  withstand lots of Amps before they fail. They are designed to keep the high voltages away not amperage. 

I have 600 VDC SPD’s on my Axpert that is only rated 115VDC and it has taken quite a few lightning strikes that had me worried at times but it seems to be doing its job. 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...