Starelo 50Amp Rv Power Outlet Box,Nema 14-50R Receptacle, Nema 14-50R Box Specifications: NEMA 14-50 Receptacle, one power outlet with protective box.ETL Listed, 125/250V, 50A, 3 Pole 4 Wire Grounding Type.Protection class: IP66. Reminder: Due to the compact and lightweight design of this product, there is limited space inside. So it is not recommended to use 6AWG wire, it is recommended to use 8AWG or 10AWG wire to work with it. Attention?The reserved thread on the product is metric thread,if you needed,it can achieve IP66 protection level with the M25/M32 metric waterproof connector in the STARELO store. Design: The socket comes with a protective box, which is made of high-quality plastic. When not working, cover the cover to prevent dust from entering, reduce the damage caused by radiation to the human body, and have waterproof function. Applicability: Use with generator transfer switch or RV shore power inlet plug, widely used in trailer, camper, RV, car, boat, home, commercial entrance.