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Upgrading TM Circuit Breakers
I am getting ready to install a 36v Ultrex on my Nitro Z21 and want to upgrade to 60 amp breakers. The boat has a 36v system. The trolling motor wires go into a bus bar. The three batteries are then individually connected to the bus bar. Each battery has a 50 amp breaker between it and the bus bar. Do I upgrade all three breakers to 60 amp? If so, do all three breakers have to be rated for 36v? Thanks.
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The three 12 volt batteries have to be configured to be in series to make 36 volts and only one breaker positioned in the +36 volt positive lead going to the trolling motor is needed. It should be within inches of the + battery terminal.
Not sure how you could actually have a 2 row +/- bus bar with your three batteries connected, as that would make them parallel configured and only provide 12 volts max. .
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Not familiar with your bus bar setup.
Google 36v battery diagram
The first image is what your looking for.
The batteries are typically directly connected to each other.
A single 60amp breaker is placed on the positive 36v line as close to the battery as possible.
Recommend Hi-Amp style breaker with reset switch. Like this one https://www.amazon.com/MinnKota-MKR-.../dp/B001PTHKSK
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