Lever, Aluminum MaterialThe HDLS limit switches are built to last and are designed for easy application installation. Its unique all-metal drive train provides consistent operating characteristics and lasts longer than drive trains with plastic parts. The HDLS offers sintered bronze bearings on 303 stainless steel operating shafts for a long, reliable mechanical life. Whether single or double pole, plug in or non-plug in, they all offer the same actuator lever tracking dimensions for the ultimate in design flexibility. All this is packaged in a rugged corrosion-resistant zinc head and body that is phosphate treated and epoxy finished. - Features ?Wide Variety of Operating Heads ?Captive Head and Body Screws ?One Piece Flat Base to Receptacle Seal Gasket - Specifications ?UL Recognized, File #E37138 ?CSA Certified, File #LR57326 ?Sealing: NEMA 1, 3, 4, 6, 13, 4X, 6P ?CE Certified