Newbie Breakaway and Tongue Question

[crestonrv]

my addition to this discussion = breakaway cable needs to be SHORTER than chains.
this is so breaks engage before chains come tight ! so often wrong on the units coming through here that I feel it needs mention !
brakes pull 4/5 amps per axle max , 12ga wire from well maintained coach batt is needed for breakaway to function ( battery on trlr has to be charged and in good condition )that way if trlr comes loose you won't have to go find a new 1