Square D MH74BE Panelboard Enclosure Type 1 NQ

Square D MH74BE is a Type 1, NEMA 1 panelboard enclosure back box designed to house the interior components of Square D NQ and NF panelboards. It measures 20 inches in width, 74 inches in height, and 5.75 inches in depth, and is constructed from galvanized steel with blank end walls for clean, unobstructed ends. This indoor enclosure provides the mounting surface and space required for distribution equipment in commercial or light-industrial installations, and it pairs with NQ/NF interiors to support standard trim fronts on the interior side. With its tall 74-inch height and slim 20-inch width, the MH74BE accommodates a range of interior configurations within spaces where footprint is a constraint, while delivering the protection and structural rigidity associated with Square D’s MH series back boxes. When installed as part of a complete Square D panel system, this enclosure functions as a dedicated back box that encloses the panel’s internal components and maintains a clean exterior end-wall appearance thanks to its blank end walls.