For example if your trolling motor draws a maximum current of 60 amperes then you can install a 60 amp circuit breaker for trolling motors.
Boat circuit breaker vs fuse.
A fuse or circuit breaker is primarily there to protect wirng which will with sufficient current incandesce glow red and be a real fire danger.
Fuse rule of thumb.
The fuse or breaker is sized to protect the wiring.
Circuit breakers tend to be categorized according to the capacity of the trolling motor installed in your boat.
All the fuses are 5 amp except the circuit that supplies the fish finder 3.
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A couple of years ago i was rewiring a boat.
Focus on the circuit breaker or fuse and associated wires that are supplying the circuit you re have trouble with.
The different types of circuit breakers.
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If a set load is on it fish finder for instance it can be downsized to protect the device itself.
Circuit breaker or fuse block agree with silvertip.
All the small stuff on my bass boat for instance is wired with 14 or 16 g wire.
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Now the fuse is a small piece of wire put into a safe container which will fuse melt at a lower current than that which will make the wiring a fire danger.
Had not installed the breaker yet just tied the pos and neg to battery to test things well when i disconnected something the wires met i started smelling smoke turn around and i had melted the main harness.