ShadowsPapa
Well-Known Member
- First Name
- Bill
- Joined
- Oct 12, 2019
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- Runnells, Iowa
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- '22 JTO, '23 JLU, '82 SX4, '73 P. Cardin Javelin
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- Retired auto mechanic, frmr gov't ntwrk security admin
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Yes, thanks, you just supported both my earlier post...............
............as well as Russ's post about 300 amps being not enough for many situations.......Just remember - under certain situations some winches will draw more than 300 amps.........
It's one reason I don't have a fuse but chose the disconnect. Size the wire for more than the expected draw, even an unexpected draw.Yep, some as high as 465 amps.
Fuses are to protect wires.
Disconnects protect against the fool that runs into you or is higher than a kite on Johnnie Walker or whacky tobacky or some chick is texting her BFF about her date, and blows through a light as you reach the intersection.
No power up to the bumper, no worries about THAT aspect of things.
Fuses are good but must be sized correctly - and always carry a spare or three.
Breakers are good - but not as reliable as once they have been hot and tripped a time or two, they won't handle the same load. And if they are the automatic reset type, well, after they cool, you have that damn short again and again.
Breakers tend to take longer to trip - depending, and there are slow-blow fuses for when you need it to not blow too quickly, but still protect.
Breakers are good for wipers and headlights where you can't have a permanent dead item because of a blown fuse.
That's why auto makers have for many decades put breakers in headlight and wiper switches, and not used fuses. (there may even be a law about those two items - hmmm, have to dig into that)
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