That would be my concern as well killing my BOOST AMP that is mounted inside the BATWING up on my roof.
I installed a small wattage PSW POWER INVERTER close to the battery bank and routed the two 120VAC multitap extension cords with one going to the Home Entertainment equipment area and the second 120VAC Multitap extension cord going back to a spot close to where we sleep. This is always ON powered by my battery bank and runs all of my items i want power too when camping off grid...
I think I read somewhere that fuse you are talking is rated at 8AMPS DC
We camp alot off-grid and don't like surprises when a long way from anything...
Roy Ken