This cord works great. If you have 50 amp service because you have a second air conditioner, this cord will work for you. When you have one ac unit, everything runs on one 30 amp circuit. This cord gives you two 30 amp circuits (at least (10 AWG wire is rated 30 amps)) when plugged into a 50 amp plug. That's twice the capacity. If you have a big rig with a washer and dryer, this cord may not be for you as you may draw more than 30 amps on a leg or circuit. However, think of it this way. In your home,you don't need a cord that will carry 20 amps connected to your table lamp (which draws about 3 amps) just because the receptacle is connected to a 20 amp breaker. You only need a cord that will carry the current load required. The nice thing about this cord is the ease of handling. No more heavy lifting and fighting the heavy 6 gauge cord. I put an 18 inch, 50 amp camco pig tail on my trailer and used this 36 feet extension cord. I only have 50 amp service because I have two ac units. The loads should be balance from the RV factory on the two 50 amp circuits, ie, one ac unit on each leg or circuit. I hope this helps explain wire size of cords and current loads.
George a Tomlinson 
