5 Things to Know About RV Extension Cords

Use a 30-amp or 50-amp RV cord, not a household extension cord Household cords can melt, catch fire, or trip breakers under sustained high loads. RV cords are built for continuous use.

Match the cord to your RV’s inlet, not the park’s pedestal If your RV is 30-amp, buy a 30-amp cord even if the park has a 50-amp outlet. Use a 30A female to 50A male adapter instead.

Know the two main RV connectors 30-amp (TT-30) has three prongs and requires a minimum 10-gauge cord. 50-amp (14-50) has four prongs and needs a 6-gauge cord.

Don’t skimp on wire gauge A 50-amp cord that’s too thin will overheat quickly under load, especially with an air conditioner running. Thicker gauge handles higher current safely.

Buy the cord that matches your RV’s power requirements Smaller RVs typically use 30-amp cords. Larger RVs and campers need 50-amp cords. Check your RV’s inlet before purchasing.