Operator Interface Enclosures: Type - Operator Interface Enclosure; Material - Steel; Material Finish - Gray; NEMA - 4; Front Type - Solid Plate; Front Material - Aluminum; Back Type - Hinged Door; Size - Height - 450.0 mm (17.72 in); Size - Width - 550.0 mm (21.65 in); Size - Depth - 180.0 mm (7.09 in); Mounting - Pendant; Additional Information - Hinged Rear Door with Single-point Latch. Integral Handle Extrusions w/Comfort Grip; Manufacturer Series - Concept