Miady RV plugs, adapters and outlet boxes

TT-30 or 14-50: read the plug first

Count the prongs on your shore power cord. Three prongs and 125 volts mean a TT-30, the 30 amp plug, and four prongs at 125/250 volts mean a 14-50, the 50 amp plug. Some campground pedestals offer only the 50 amp outlet. If your camper is wired for 30, the 18 inch dogbone bridges the gap: its 14-50P male end goes into the pedestal, and your TT-30 cord plugs into its TT-30R end. Built on 10 gauge copper, it is rated at 125 volts and 3,750 watts, so your camper still gets 30 amps, not 50.

A cracked or worn cord end does not mean a new cord. Our 30 amp male plug fits a three-wire 10 gauge cord, the 50 amp male plug takes cords from 10 to 4 gauge, and the 50 amp female plug replaces the receiving end of a four-wire 50 amp extension cord. For a camper pad at home, the TT-30R and 14-50R outlet boxes have rainproof type 3R enclosures with doors that close and lock over a plugged-in cord. A licensed electrician installs those boxes. Like the rest of the shore power parts in the Miady family, they go by amps and configuration, so match both to your cord.