Reliance Controls Ap31Rv L5-30 30-Amp Male To 30-Amp Rv Female Generator Power Product Description The Reliance Controls AP31RV L5-30 30-Amp Male to 30-Amp RV Female Generator Power Adapter Plug is a reliable, heavy-duty plug for a variety of applications involving the necessary power. Since 1909, Reliance Controls Corporation has contributed more innovations than any other single manufacturer and has been awarded over 85 patents on manual transfer switches, time switches and accessories. Reliance Controls Corporation specializes in the manufacturing of a wide variety of electrical products. The primary product line consists of heavy duty time clocks and controls, generator accessories, transfer switches and transfer panels for portable generators. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality, superior engineering and exceptional customer service. From the Manufacturer Generator Power Cable Plug. L5-30 to RV 30 Amp adapter plug Tested, reliable adapter plug Designed to make your RV and generator products more compatible Male end plugs into the generator, whereas the RV cord plugs into the female end Frequency: 60 Hz Black in color