Weather Resistant Receptacle. Provides compliance with 2011 NEC Article 406.9 that states that all receptacles installed in wet and damp locations must be weather resistant. “WR” designations provide visual identification. Weather Resistant Receptacles offer protection from rain, snow, ice, moisture, and humidity when properly installed in an approved weather protective or while-in-use cover. Weather resistant receptacles are for use in any residential or commercial outdoor location. Designed with enhanced nylon and corrosion resistant metal components Weather resistant receptacles are extra durable. Combine WR receptacles with any of our WeatherBox While-in-Use Protective Covers for tough protection against the elements.