Re: Circuit breaker for trolling motor?
1 thing that SilverTip mentioned, and I'd like to stress. Make sure the size of the fuse/circuit breaker is at or below the rating of ALL the wire in that circuit.
I think the ratings are: note - I said I THINK!. hopefully, someone will step in and verify.
60 amp = #6 wire
50 amp = #8 wire
40 amp = #10 wire
wire size can be bigger than needed, but fuse/circuit breaker can't be bigger than wire rating (hope that makes sense), while at the same time, being the correct size as to handle the trolling motor draw, but close enough to pop if needed to protect the motor.
Quick story. I recently worked on a friends boat. Trolling motor didn't work. #8 wire/40 amp fuse (that is ok), BUT fuse holder was only rated for 20 amp fuse, with short #12 leads spliced into the #8 wires in the boat. Fuse holder and wires were melted/burnt. Luckily, didn't start a fire, but easily could have.
Gary