The Reliance Raintight Generator Power Inlet Box power inlet box is wired to your indoor load center and mounted to an exterior wall near where generator is running. Power cords are plugged from generator directly to power box, eliminating running power cords through an open window to load center. UL listed. U.S.A. What's Included (1) Reliance Raintight Power Inlet Box -- 30 Amp, Model# PB30 Features + Benefits 30 Amp Raintightâ„¢ inlet box L14-30 locking power cord plug type NEMA 3R-rated all-steel construction Weatherproof gasketed spring-closure door for outdoor mounting 4 knockout holes Ample wiring space for easy connections 30A - 125/250V - NEMA L14-30 Configuration Pre-wired built-in grounding Spring-loaded auto-closing cover - Prevents bees and spiders from nesting Suitable for outdoor use - NEMA 3R Rated cULus Listed