Description
Appleton® UNILETS™ Explosionproof Tumbler Switch, 1-Gang 4-Way Feed-Through, Series: EDSC, 120 to 277 V AC, 20 A, Lever Actuator, Thread Connection, NEMA 7CD/9EFG NEMA Rating, Surface Mounting, Malleable Iron, Triple Coated, 5.38 in H x 3 in W x 4.69 in D Dimensions
Features:
- 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
- Factory sealed switches are designed to a UL standard so that any arcing devices are contained within an explosionproof labyrinth switch
- Tumbler switch devices are approved for installation without additional external sealing fittings
- 20 A 4-way and all 30 A 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 flametight construction
- Sealing chamber has prewired factory sealed pigtail leads to switch
- Threaded stainless steel operating handle provides positive corrosion resistant operation
- Corrosion resistant, strong stainless steel hex head cap screws attach cover or body or sealing chamber assembly for approved flame-tight construction
- Pad lockable in the on or off position
Applications:
Used in classified areas where ignitable vapors, gases or highly combustible dusts are present and installed in chemical plants, petrochemical plants, refineries and other process industries
Standards/Approval:
- UL 894, UL 1203, E10523, E81751 UL Listed
- Class I, Group B, As Well As Class I, Groups C and D, Class II, Groups E, F, G, and Class III
