The Reliance Pro/Tran 2 Outdoor Rated (NEMA 3R) transfer switches are ideal for outdoor installation in residential and commercial applications. The gasket steel cabinet is powder-coated with a key lock door and keys and comes with a factory-installed power inlet on the bottom to connect the generator cord. Included is a 16-inch length of 1-inch flexible non-metallic, liquid-tight conduit with fittings. Simply mount the cabinet, attach the conduit and feed the factory marked wires from the transfer switch into the load center. Select the load center circuits needed in an emergency and connect them to the wires leads from the transfer switch. Each cabinet includes five knockouts, one on each side and two in the back are combination 1/2-inch, 3/4-inch, 1-inch knockouts and the one on the bottom is a combination 1/2-inch, 3/4-inch knockout.