Features: * Outdoor NEMA 3R power inlet box * May be installed outdoors up to 100 feet from a home"s load center so your generator can be plugged in outside, away from open doors or windows * Designed to be hard-wired directly to Reliance transfer switches with building wire * Has four combination 1/2 in. and 3/4 in. knockouts (one on each side, bottom and back) * Dimensions: 6 in. height x 4 in. width x 2.63 in. depth * UL listed * 50 Amp rating What"s In The Box: * Reliance Controls PB50 50-Amp Outdoor Power Inlet