Upgraded my 40 foot diesel pusher coach to 50 amp.
I was quoted $450 through an RV Dealership for a 20 foot cord. And they stated they can't even Get any 50 amp shoreline service cords. They tried to sell me three extension cords for $199 each.
Anyhow this cord is rated at 12,000 watts and two hot lines rated for 50 amps each live line.
So far I have ran an electric mini split at 17 amps, a 1500 watt room heater, the dryer and microwave.
I USED A THERMAL CAMERA TO CHECK ANY THERMAL ISSUES AKIN TO SHOTTY CORDS. After running all yhe main appliances for 15 minutes the main plug never got above 50* despite outside temp was 17*
MY ONLY COMPLAINT IS THE CABLE IS SUPER STIFF even days when outside temps were 60* days after throttling the wattage through the cable. So the cable can become a tripping hazard.