Originally Posted by twinboat
What does the Xantrex manual say to use ?
If you look it up, I'm pretty sure it says use a fuse.
I looked, Xantrex states 250 amp ANL or class C fuse.
From my manual;
DC Disconnects and Over-Current Devices
The DC circuit from the battery to the Freedom XC must be
equipped with a disconnect and over-current device. This usually
consists of a circuit breaker, a “fused-disconnect”, or a separate fuse
and DC disconnect. Do not confuse AC circuit breakers with DC
circuit breakers. They are not interchangeable. The rating of the
fuse or breaker must be matched to the size of cables used in
accordance with the applicable installation codes. The breaker or
disconnect and fuse should be located as close as possible to the
battery, in the positive cable. Applicable codes may limit how far
the protection can be from the battery.