question

danjorourke avatar image
danjorourke asked

What size fuse between battery and Phoenix 12/250 inverter?

Hi,

What size fuse do I need between my 100ah battery and a Phoenix 12/250 inverter? Inverter has continuous power of 200w and max of 400w. I am using a Smartsolar MPPT 100/20.

Thanks!

Phoenix Inverterfuses
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
Alexandra avatar image
Alexandra answered ·

@danjorourke

It depends on your wiring, you generally fuse for that.

But 250/12 is 20.8A. So a 25A fuse minimum.

The internal ones are 30A see page 4 of the printed manual.

screenshot-20220725-120329.jpg



screenshot-20220725-120329.jpg (115.1 KiB)
4 comments
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

danjorourke avatar image danjorourke commented ·

Hi Alexandra,

Thanks for your reply. I also thought it should be 25a but my manual says the internal fuse is 60a, not 2 x 30a as your manual states.
As I can't get a 25a fuse, do you think a 30a will be ok?
My wiring will be 6mm² at a length of 1.5m.

Thanks
img-20220725-121154000.jpg

0 Likes 0 ·
img-20220725-121154000.jpg (916.6 KiB)
Show more comments

Related Resources

Phoenix Inverter product page

Phoenix Inverter Smart product page

Fuses & fuse holders Product Page.


Additional resources still need to be added for this topic