Ours has three of them, I think all are 50 amp circuit breakers.
I know one is for the LCI hydraulic leveler pump motor, or at least I believe so.
They all connect in line with one of the coach battery positive terminals, or to an insulated, from the frame, junction post.
I just haven't put the time to see which protects what.
One could be for the inverters, or the 12vdc slide out motors.
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Rusty
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