GenTran 50 Amp 4-wire 125/250-Volt Non-Metallic Generator Power Inlet Box CS6365 50 Amp non-metallic power inlet box; UL listed for generators up to 12500 watts Durable, glass-filled nylon NEMA 3r-rated enclosure includes 4-wire, 50amp 125/250v male inlet in configuration cs6365 on bottom High-impact, UV stabilized, glass-filled nylon resin; 99-Inches of wiring room and 6 knockouts provide ultimate wiring flexibility Since generator connection is made on the bottom, these power inlet boxes retain the "rain tight" rating while in use A sloped top and posts on the back allow precipitation to drain off