For that reason, I installed a dedicated line directly from the service panel to an outdoor receptacle beside the 5er parking space. Wire is 12 gauge, breaker is 30 amp, and receptacle is GFI and weatherproof. That way there is nothing on the line but the trailer, and it has never tripped the breaker, even with the A/C running and other normal usage inside the trailer.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.