Reliance Controls Outdoor Backup Power Inlet Box, 20 Amp NEMA 3R Power Inlet for Portable Generators & Compatible Backup Power Systems, Up to 5,000 Running Watts, PB20

From the manufacturer About Reliance
Controls Corporation: 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. And after over a century of innovation, Reliance Controls Corporation has built an enviable reputation for high quality and superior engineering. Reliance Controls Corporation PB20 20-Amp NEMA 3R Power Inlet Box For Generators Up to 5, 000 Running Watts The Reliance Controls Corporation PB20 20-Amp NEMA 3R Power Inlet Box is designed for the use with the Pro/Tran transfer switches and Reliance Panel/Link manual transfer panels and generator-ready load centers. The power inlet box may be installed indoors, or outdoors in an open area where the generator is being used. Using one of the four combination 1/2-inch and 3/4-inch knockouts the power inlet box can be wired directly to the transfer switch or panel. UL Listed The rain tight NEMA 3R PBN-Series steel power inlet box is designed for use with Pro/Tran transfer switches, Panel/Link transfer panels and generator-ready load centers. The front entry inlet has a weatherproof spring cover which closes when not in use to protect the inlet from the elements.

It is designed to be installed outdoors in an open area where the generator is being used to avoid carbon monox