1-Foot 10/3 RV/Motorhome Adapter 30 Amp RV Plug to 50 Amp Twistlock Connector Heavy-Duty 10/3 STW outdoor rated 600V cable is used for all adapters. Molded-on right angle 30A-125V male plug fits flush against the power outlet. Molded-on 50A-125/250V twistlock female connector twists and locks onto the RV Motor Home male plug. Special locking ring screws onto the male plug to prevent the possibility of uncoupling. Weatherproof ABS boot covers all of the 50A 125/250V twistlock connector to prevent corrosion and water damage.