Appleton™ explosionproof, dust-ignitionproof EDS Series factory sealed tumbler switches confine the arcing of enclosed switches, preventing ignition of ignitable atmospheres during connect and disconnect operation of lighting and light power loads. They are designed for use in classified areas where ignitable vapors, gases or highly combustible dusts are present such as chemical and petrochemical plants, refineries and other process industries. Features: Explosionproof, Dust-Ignitionproof. Ideal for installation in chemical and petrochemical plants, refineries and other process industries; Factory sealed switches are designed to a UL Standard so that any arcing devices are contained within an explosionproof labyrinth switch (standard switch and sealing chamber on select models).; 20 Amp 4-way and all 30 Amp models utilize a switch enclosed in separate sealing chamber. Smooth double-face, accurately ground surfaces on sealing chamber flange mate with cover and body to provide positive flame-tight construction; 1/2#8221; and 3/4#8221; 1-gang units suitable for Class I, Group B, in addition to Class I, Groups C and D; Class II, Groups E, F and G; and Class III; Sealing chamber has prewired factory sealed pigtail leads to switch; Enclosures have external mounting lugs for ease of mounting; Smooth, rounded integral bushing in each hub protects conductor insulation; Enclosures furnished with internal ground screw; Corrosion resistant, strong stainless steel hex head cap screws attach cover/body/sealing chamber assembly for approved flame-tight construction; Threaded stainless steel operating handle provides positive corrosion resistant operation; Choice of front-operating or side rocker arm handle; each may be locked in ON or OFF position; Custom units are available. See catalog pages for details
