Quote Originally Posted by Ralphxyz View Post
How many batteries and what amperage that would use a 1/4"+ busbar?

Ralph
The busbar in this case is more of a bridge between the 3 poles of the circuit breaker, The amperage of the breaker would be the limiting factor. The number of batteries are irrelevant as long as you are not trying to use a breaker of this type to parallel batteries together it is for down stream output only never as an inter bank connector. circuit Breakers are also not meant to be used as switches while under load