Generac 30A Outdoor Generator Power Inlet Box Raintight 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 1 of the 4 combination 1/2 In. and 3/4 In. knockouts 1 on each side, bottom, and back the power inlet box can be wired directly to the transfer switch or panel. The exclusive patented design provides generous wiring space and facilitates rough-in. The PR series includes circuit breakers that match the amperage of the power inlet. UL Underwriter's Laboratories listed. Amperage 30A, Knockouts 1/2 In. 3/4 In., UL LIsted Yes, Pkg Qty 1, Package Type Box Operating servicing and maintainng this equipement can expose you to chemicals including engine exhaust carbon monoxide phthalates and lead which are known to the State of California to cuase cancer and birth defects or other reproductive harm. To minimi