Switch, Tumbler, Electrical, 20A, 277AC

Applications

• Designed to prevent arcing of enclosed switches in ignitable atmospheres during connect and disconnect operation of lighting and light power loads.
• For use in classified areas where ignitable vapors, gases or highly combustible dusts are present.
• For installation in:
• — Chemical plants
• — Petrochemical plants
• — Refineries
• — Other process industries
• Features
• 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). Tumbler switch devices are approved for installation without additional external sealing fittings.
• 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.
• 20 Amp and 30 Amp units available for use with 120-277 Vac.
• Smooth ground mating surfaces assure flame-tight joint
• between cover and mounting enclosure.
• Stainless steel hex head cap screws for attaching cover to
• mounting enclosure.
• Choice of front-operating or side rocker arm handle—each may
• be locked in ON or OFF position.
• Each handle has close-tolerance threaded stainless steel shaft
• to meet Explosionproof requirements.
• Enclosures furnished with internal ground screw.