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Emerson Appleton Nonmetallic Tumbler Switch, N1 Series

Appleton™ Intraground™ N1 Series Nonmetallic Tumbler Switches

Brand: Appleton

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Appleton™ nonmetallic Intraground™ N1 Series non-factory sealed tumbler switches are designed to prevent arcing of enclosed switches in 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

20 Amp and 30 Amp units available for use with 120-277 Vac
UL Temperature Index (continuous use temperature): +170° C (+338° F) electrical properties, +170° C (+338° F) mechanical properties with impact
Excellent heat deflection temperature: sample specimens rated at +210° C (+410° F)
Nonmetallic construction with metal imbedded grounding grid. No need to install special wires and parts for grounding. Feed-thru or dead-end grounded 1/2" or 3/4" conduit openings for threaded conduit. Special grounding wire furnished with each box provides safe grounding when cover is removed
Ideal for use in corrosive environments. Nonmetallic enclosures with corrosion resistant parts coated with epoxy, Teflon™ or Mylar™, these control stations offer unsurpassed resistance to chemicals
Silicone gasket, specially designed for the labryinth-path point between cover and body, prevents entrance of moisture and dust
Smooth, rounded integral bushing in each conduit opening protects conduct or insulation. Accurately tapped, tapered conduit openings for tight, rigid joints and ground continuity
Designed with unique labyrinth-path construction to assure a flame-tight joint between body and cover. Explosionproof, with sealing fittings field installed adjacent to enclosure on all conduit runs, the N1 Series enclosures withstood a hydrostatic test of four times the maximum internal explosion pressure that could be developed from a gas or vapor explosion in actual use
Typical mechanical properties of 24,500 psi tensile strength, 3% elongation at break, 33,000 psi flexural strength, and 1,200,000 psi flexural modulus. Electrical properties of sample specimens: dielectric strength (in air) of 769 at 1/16"
Designed with high strength thermoplastic polyetherimide, together with thick walls (5/16") and sound structural design (rounded corners) provides superior resistance to impact and crushing. The N1 Series provides excellent resistance to ultraviolet light and water, excellent conduit connection strength, excellent resistance to attack by fungi and mold and superior flammability resistance
Operating handle has close-tolerance threaded stainless steel shaft to meet explosionproof requirements. Provides positive corrosion resistant operation. Handle may be locked in ON or OFF position
Enclosures have external mounting lugs for ease of mounting