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Emerson Appleton Manual Motor Starter and Enclosure, N1 Series

Appleton™ Intraground™ N1 Series Manual Motor Starters and Enclosures

Brand: Appleton

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Appleton™ explosionproof, Intraground™ N1 Series manual motor starters contain any arcing within the enclosure for safe manual starting of small AC or DC motors in hazardous locations exposed to flammable vapors, gases or combustible dust.

Housed in a highly corrosion resistant, nonmetallic enclosure, these motor starters are designed for use in areas where hazardous materials are handled or stored.

The Intraground™ N1 Series is available with or without a heater.

Features

Explosionproof. With sealing fittings installed at each conduit entrance, 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
Superior flammability resistance. Listed for use in Class I, Groups C and D, Division 1 and 2 atmospheres, such as diethyl ether, methyl ethyl keytone, acetone, toluene, no. 3 fuel oil, ammonium hydroxide (20%), benzene, regular unleaded gas, ethyl acetate, hexane and methanol
Nonmetallic construction with metal imbedded grounding grid. No need to install special wires and parts for grounding. Feed-thru and dead-end styles are grounded through 1/2" or 3/4" threaded conduit openings
Special grounding wire furnished with each box provides safe grounding when cover is removed
Unique labyrinth-path construction assures flame-tight joint between body and cover
Silicone gasket, specially designed for the labyrinth-path joint, prevents entrance of moisture without interfering with the venting of cooled hazardous gases and vapors
Nonmetallic enclosures with corrosion resistant parts coated with epoxy, Teflon™ or Mylar™. These motor starters offer unsurpassed resistance to chemicals and excellent resistance to attack by fungi and mold
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"
High strength thermoplastic polyetherimide, together with thick wall (5/16") and sound structural design (rounded corners) provides superior resistance to impact and crushing
Excellent resistance to ultraviolet light and water. After 336 hours of immersion in water at +82° C (+180° F) and 720 hours of exposure to ultraviolet radiation, there was no appreciable change in tensile strength
Excellent conduit connection strength. UL pull-out and bending resistance tests resulted in no effect on conduit connections