A 30 amp plug has three prongs – a 120 volt hot wire, a neutral wire and a ground wire – and is generally used on RVs with lower load requirements.

Can I run my RV refrigerator on 110?

An RV refrigerator can operate an electric 110 power, propane (LP gas), or (on some models) 12 volt power. Most RV refrigerators have a display on the front upper portion of the refrigerator. When using an RV refrigerator you have the option to run it in LP mode or auto mode. I recommend running on auto mode.