Abstract: A protective enclosure for electrical components includes a body having front and end openings, the body further including front, rear, and two side panels. A door selectively closes the front opening. An end cap closes the end opening. A ledge surrounds the end opening, the ledge lying perpendicular to the front, rear, and side panels, and a plurality of apertures are provided along the ledge. A gasket provides a seal between the end cap and ledge. A plurality of fasteners embedded into the end cap engage with a plurality of clips assembled onto the ledge at the plurality of apertures so as to form a permanent, one-time-use closure that compresses the gasket and maintains compression thereof in response to nothing more than movement of the end cap toward the ledge in a single installation direction perpendicular to the ledge.

Abstract: A protective enclosure for electrical components. A body defines a front opening, a first end opening, and a second end opening, wherein the body includes a front panel, a rear panel, and two side panels, all of which are formed at least in part by a single material sheet, without welding. A door is coupled to the body to selectively close the front opening. First and second end caps are sealingly coupled to the body around the first and second end openings. A first ledge, formed by the single material sheet, surrounds the first end opening and lies in a first plane perpendicular to the front, rear, and side panels. A second ledge, formed by the single material sheet, surrounds the second end opening and lies in a second plane parallel to the first plane.