Emerson Appleton Manual Motor Starter and Enclosure, N1 Series
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Appleton™ Intraground™ N1 Series Manual Motor Starters and Enclosures

Brand: Appleton

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.

    • Specifications

    Brand

    NEC Certifications & Compliances

    • Class I, Division 1 & 2, Groups C, D, NEMA 3, 4X, 7CD, 12

    Standard Materials & Finishes

    • 30% Glass-reinforced ThermoPlastic Polyetherimide. Teflon™ Coated Stainless Steel Cover Bolts & Mylar™ Nameplates.

    UL Temperature Index

    • Continuous Use Temperature. Electrical Properties: +170° C (+338° F). Mechanical Properties with Impact: +170° C (+338° F)

    Documentation

    Product Manuals

    Catalogs

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