Modded from one of the links below:
>Fuses - The advantage to fuses, is that they may be replaced easier,
>than a fusible link, the disadvantage is that they come at a cost each
>time you have to replace them. They offer low resistance. Fuses typically blow quickly and are widely available for lower amperages.
>
>Circuit breakers - The advantage to circuit breakers is that they can be
>reset, on demand, the disadvantage is that they cost more
>but at a one time cost. They offer low resistance. Circuit breakers reportedly blow slower than fuses, but usually faster than fusible links.
>
>Fusible links - The advantage is they are materially cost effective. They offer resistance to circuits, which may benefit some circuits with delicate components, such as modules. Fusible links are often used because they can handle power spikes in situations where a fuse or circuit breaker would likely blow. The disadvantage, is that they may need "tedious" work to replace...
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I have a big fuse for my stereo amp (in my 60) and an auto-reset circuit breaker for my trailer main power supply (hitch) wiring (in my Tundra and soon in my 80). And I keep the OEM fusible links in place in every vehicle.
Wiring in a CB instead of fusible link would not be hard. E.g., search on Blue Sea DC circuit breakers. Determining the right size(s) would take a little time, and I would suggest a slow burn type of CB. I considered just this when planning a trunk battery relocation on my AMX (I have not accomplished this as yet). I suggest you simply carry a spare fusible link for your 80, as others have suggested. Each wire in the fusible link is calculated to be the correct size to protect those associated circuits. Simple and cheap.
http://www.autoshop101.com/forms/hweb1.pdf
Yahoo! Groups
Circuit Breakers vs. Fuses: Some Hard Fact